/HAM/ Amateur Radio General

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/HAM/ Amateur Radio General Anonymous Thu Dec 12 21:20:33 2019 No.1733454 [Reply] [Original]

IC-7300 Edition
>NEWBIE FAQ - READ THIS FIRST IF YOU HAVE QUESTIONS
ftp://50.31.112.231/pub/radio_FAQ_Preview9.htm
>Getting Licensed / Exam Information
>Online Practice Tests:
http://aa9pw.com/
https://hamstudy.org/
https://hamexam.org/
> Exams are FREE through Laurel VEC
https://www.laurelvec.com/
> Real-Time Propagation Data
http://prop.kc2g.com/
> Useful SWR/ Power chart for antenna tuning (Want to know what is good SWR? Have a look)
http://www.packetradio.com/pdfzips/SWRvsPowerNwatts.pdf
> Previous Thread
>>1725994
>>1725994
>>1725994

>>	Anonymous Thu Dec 12 21:29:53 2019 No.1733460 Where's the 705 bros at?

Anonymous Thu Dec 12 23:43:56 2019 No.1733499

/ham/ i need comm from town to farm, 6 miles as the crow flies but hills in between so no direct radio comm possible (own a couple baofengs).
good news I guess is I own some land at the top of a hill between town and farm.
what's a good antenna or repeater I can put there? no access to electrical power there. I'm new to this so please give me 101 stuff.
I'm in MX but I can get most stuff online from US. no idea If i need some license or permit but I can work that out later.
thanks /ham/

>>	Anonymous Fri Dec 13 00:20:19 2019 No.1733515 How long did it take you to learn morse code?

>>	Anonymous Fri Dec 13 05:13:09 2019 No.1733599 >>1733499 >no access to electrical power there If you use solar power you have to keep in mind that many inverters er really noisy.

>>	Anonymous Fri Dec 13 06:50:32 2019 No.1733617 >>1733515 Half a day >https://morse.withgoogle.com/learn/ To be able to interpret on the fly? Months.

>>	Anonymous Fri Dec 13 06:56:16 2019 No.1733618 File: 723 KB, 2048x1368, 1573829886881.jpg [View same] [iqdb] [saucenao] [google] >>1733460 I can't wait! I have 3 on pre-order even though I don't know how much they'll cost or when they'll be available.

>>	Anonymous Fri Dec 13 07:41:55 2019 No.1733629 >>1733618 >so proud of this abortion

>>	Anonymous Fri Dec 13 08:06:06 2019 No.1733639 File: 2.75 MB, 3842x2253, IMG_20191213_080150__01.jpg [View same] [iqdb] [saucenao] [google] >>1733454 Is there anything fun I can do with this Chinese 2M radio besides talking to omlete bros who are quickly fading away?

Anonymous Fri Dec 13 08:42:39 2019 No.1733651

>>1733454
I have a handheld radio that accesses the HAM frequencies. I love tuning into the local tower while I drive around and fucking with all the old farts that chit chat about stupid old times shit. Someone got a receiver on top of the renaissance center in downtown Detroit that can broadcast across the entire metro area. Super fun to troll people on there.

>>	Anonymous Fri Dec 13 09:31:14 2019 No.1733669 File: 979 KB, 2602x1608, hammer.jpg [View same] [iqdb] [saucenao] [google] I'm relevant! I do important hammy things!

>>	Anonymous Fri Dec 13 09:47:07 2019 No.1733672 >>1733651 >receiver >that can broadcast

>>	Anonymous Fri Dec 13 09:51:03 2019 No.1733673 >>1733618 whatever, just hook an amp to it

>>	Anonymous Fri Dec 13 10:15:12 2019 No.1733685 >>1733672 Whatever you call the stupid thing. Sorry I’m not a 65 year old recluse in my basement pretending it’s the 1950’s.

>>	Anonymous Fri Dec 13 10:18:16 2019 No.1733687 >>1733685 no, youre just fucking retarded. go catch some pokemon in a busy street, you brainless faggot

Anonymous Fri Dec 13 10:51:19 2019 No.1733697

>>1733599
that's too bad since the top of that hill is a very secluded area but sometimes people get in there looking for stray cattle, or to hunt deer or turkey depending on the season and I wouldn't want them to find it and mess with it/steal it.
maybe I'd have to fence it.

>>	Anonymous Fri Dec 13 12:06:58 2019 No.1733726 >>1733697 He meant electrical noise... I don't think you're going to manage to set up a repeater there Pedro.

>>	Anonymous Fri Dec 13 14:45:32 2019 No.1733818 >>1733515 Getting past 12 speed plus learning military radio technology and rules, about 4 months.

Anonymous Fri Dec 13 14:51:10 2019 No.1733822

>>1733499
Do the Baofags not work? Seems like you should be ok within 6 miles of each other.

If you make 2 directional yagis and stick them up high (guessing you don't have to carry your HT from the shit shack to the grow field), that should be enough
>https://nt1k.com/homebrew-5-element-vhf-yagi/

>>	Anonymous Fri Dec 13 14:58:04 2019 No.1733827 >>1733673 >High prices transceiver >Psh, just go spend $2,000 on an amp to fix the shortcomings of the piece of shit. Your getting fucked over by ICOM©®™ and loving it.

Anonymous Fri Dec 13 17:06:27 2019 No.1733898

>>1733499
You tried CB? I know the CB bands tend to be a lot more popular south of the border, and freebanding pretty much goes unenforced. As far as radios go, the SR-94HPC comes to mind. VHF (like baofengs) means setting up a repeater, and I have no idea what mexican regs are like for that.

If you can set up a base antenna on the farm you should get 10-20 miles easy, even with hills.

>>	Anonymous Fri Dec 13 18:05:18 2019 No.1733928 >>1733827 Who hurt you?

>>	Anonymous Fri Dec 13 18:31:38 2019 No.1733939 >>1733685 >sorry I don't know knowledge 13 year olds understand That makes you a retard, and a zoomer. Congratz

>>	Anonymous Fri Dec 13 18:35:32 2019 No.1733942 >>1733499 Take a 8W baofeng, put in box and set up a solar pannels to charge it. Use an Ed Fong DBJ-1 antenna, painted brown to match the tree. Ez repeater for cheap that should easily bridge the gap.

>>	Anonymous Fri Dec 13 20:08:58 2019 No.1733997 >>1733942 >Use an Ed Fong DBJ-1 antenna nigger get you some copper pipes and sweat them together. jpole antenna is good for some hills

>>	Anonymous Fri Dec 13 20:15:11 2019 No.1734002 >>1733942 How does just powering a Baofeng in a box = a repeater? You'd need a means of recording a message, activating PTT and playing it back or two Baofengs and some means of activating PTT.

>>	Anonymous Fri Dec 13 20:21:53 2019 No.1734008 >>1734002 google is your friend, nigger. this has been done before. its a shit job but it can work

>>	Anonymous Fri Dec 13 21:56:41 2019 No.1734055 >>1733898 >You tried CB? >>1733898 >If you can set up a base antenna on the farm you should get 10-20 miles easy, even with hills. Yeah, CB + 100W PA should do the trick. PA is probably not need but not sure.

Anonymous Sat Dec 14 00:05:05 2019 No.1734129

>>1734055
A 12W SSB CB radio can easily do 6 miles, and if he has room to set up a base station antenna it'll easily do 20+. If you need more power, just get an export radio- the SR-94 I mentioned already does 40W once you unlock it. Yeah it's a legal grey area in the USA, but in Mexico enforcement is likely even more lax. Radios are cheap, antennas can be found at any truck stop, and it's a lot less complicated than licensing and setting up a DIY repeater.

>>	Anonymous Sat Dec 14 04:52:40 2019 No.1734207 >>1733997 The DBJ-1 doesn't require any soldering tools, a SWR meter, or anything but a 5ft piece of pipe. It's also cheap.

>>	Anonymous Sat Dec 14 07:42:26 2019 No.1734230 File: 1.19 MB, 1114x589, 756.png [View same] [iqdb] [saucenao] [google] Thoughts on the IC-756 for the 'average' ham looking for a budget radio? Seems like a poor man's IC-730 - I can't believe it's a decade older

>>	Anonymous Sat Dec 14 08:24:57 2019 No.1734243 >>1734230 If that's in good working order that's a bretty good deal.

>>	Anonymous Sat Dec 14 08:33:01 2019 No.1734246 >>1734230 Go for it, the rig is quite decent IMHO.

>>	Anonymous Sat Dec 14 08:34:04 2019 No.1734247 >>1734129 >A 12W SSB CB Since when SSB is used for CB? I thought CB is FM only.

>>	Anonymous Sat Dec 14 08:42:33 2019 No.1734250 >>1733939 You are exactly why I troll ham frequencies.

Anonymous Sat Dec 14 09:18:40 2019 No.1734266
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>>1734243
>>1734246
I'm tempted, but I imagine in another year the IC-7300 will only be $300 more.
I just want a waterfall, ability to do digital, and no heater element requiring me to wait 10 minutes lol.
I used to be annoyed by transceiver prices, but it seems the MSRP of the 756 in 2002 was $2,700.
No more gripes from me! I may keep saving and foot the extra $300 for a 15 year younger model.
Down to $900 now after Icom rebate

Anonymous Sat Dec 14 09:20:45 2019 No.1734268

>>1734207
i know, ive wanted to buy one just to check them out.
shut up ed, this is /diy/
>>1734250
when you retards fuck with repeaters we just hop to HF, where brainlets will never be able to find us.

get some skills, or your just going to be a retard for the rest of your life, the idiot weed wacking my grass

get your shit together, bud
>>1734230
>all those buttons and knobs
we have run them on field day, worked great.

>>	Anonymous Sat Dec 14 09:23:19 2019 No.1734272 >>1734266 you will be so happy with the icom. its worth the wait, i know you want to get on the air now, but youll be so happy if you wait.

>>	Anonymous Sat Dec 14 09:28:02 2019 No.1734278 >>1734268 >when you retards fuck with repeaters we just hop to HF Except you don’t, you just rage and threaten to contact the FCC after triangulating me while I laugh at you as a drive around broadcasting from no one fixed location.

Anonymous Sat Dec 14 09:43:46 2019 No.1734290

>>1734278
wow bruh. sounds like youre living the life. riding around in your moms '96 geo prism, trollin the boomers!!

sounds like you have everything figured out

maybe the next time im bored ill get my memefeng out and troll the drive thru window at the mcdonalds you work

>>	Anonymous Sat Dec 14 09:51:33 2019 No.1734294 >>1734268 >>1734290 This line intentionally left blank.

>>	Anonymous Sat Dec 14 09:53:54 2019 No.1734298 >>1734294 not stale

>>	Anonymous Sat Dec 14 11:46:06 2019 No.1734357 >>1734266 sounds like you could pair an sdr with your transmitter

Anonymous Sat Dec 14 11:48:17 2019 No.1734359

>>1734272
Hey, again. I'm making do with a 50 year old rig and am a cheapskate - haven't spent more than $700 on a toy in 4 years and am about to bypass my heating core to keep my 20 year old car running - but I may just cave when the 7300 dips just a bit more in price.

Anonymous Sat Dec 14 11:53:08 2019 No.1734361

>>1734357
Lol that's actually what I've been doing for a few months. Antenna to tuner to switch for SDR or transceiver.
I like to think I'm building skills and understanding by working and learning the ins and outs of old technology. Maybe the grass is greener and I'll miss the pops and crackles and exhaust heat, but sometimes it'd be nice to simply have a digital frequency meter.

Anonymous Sat Dec 14 12:18:15 2019 No.1734378

>>1734230
The 756 Pro / Pro II / Pro III are solid radios, just keep in mind it's all analog filtering, and with age some may have component problems. If you pick up a Signalink you can run digital modes just fine. $525 isn't bad assuming everything works. Or you can get a 7300 on sale, i've seen them sub 900 already.
>>1734247
Here in the USA, CB is AM and SSB. There is no FM. Other countries have different rules, and FM CB is common in Euro countries. Latin America sees a lot of general freeband CB from 25-28 Mhz. Plus radios are <$200 and antennas / parts are common.
>>1734359
Opportunity Cost, anon. Sometimes fixing things just means spending more money over a long period.

Anonymous Sat Dec 14 17:08:08 2019 No.1734540
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>>1733454
>fall for the radio meme from these stupid threads
>get license
>even throw in a cb
>stupid fucking antennas all over my roof
>never hear anything on cb
>maybe once a week hear fags on a repeater talking about the same shit over and over

Gayest fucking waste of time hobby in the universe, desu

>>	Anonymous Sat Dec 14 17:13:56 2019 No.1734545 >>1734540 Local sucks. Work satellites or get HF gear.

>>	Anonymous Sat Dec 14 17:24:13 2019 No.1734548 >the 7300 makes my pp tickle but I'm just an sdrfag that doesn't have any interest in transmitting or ragchewing what do??

>>	Anonymous Sat Dec 14 20:49:31 2019 No.1734650 >>1734378 >Here in the USA, CB is AM and SSB. There is no FM I see, for some reason I thought CB is FM only. I'm still surprised that AM is still used.

>>	Anonymous Sat Dec 14 20:50:34 2019 No.1734652 >>1734548 >what do?? Get it or IC-756pro2

>>	Anonymous Sat Dec 14 21:43:13 2019 No.1734708 File: 292 KB, 4032x1960, RADIO.jpg [View same] [iqdb] [saucenao] [google] Just got a yaesu 7250, how'd I do?

>>	Anonymous Sat Dec 14 23:53:32 2019 No.1734790 File: 2.05 MB, 3492x4656, O7uoiEBg.jpg [View same] [iqdb] [saucenao] [google] >>1734545 HF is the real winner. Worked stations while in the hot tub in the woods today, shit was cash.

>>	Anonymous Sun Dec 15 05:17:23 2019 No.1734900 File: 143 KB, 1537x817, my Begali SPARK.jpg [View same] [iqdb] [saucenao] [google] straight males demand straight keys.

>>	Anonymous Sun Dec 15 07:18:15 2019 No.1734931 File: 13 KB, 236x206, diy-key.jpg [View same] [iqdb] [saucenao] [google] >>1734900 Warped push key. Gender pronoun?

>>	Anonymous Sun Dec 15 07:35:33 2019 No.1734935 >>1734931 That's a pretty clever use of those little gates.

>>	Anonymous Sun Dec 15 07:46:52 2019 No.1734941 >>1734790 What a lonely sad life you lead.

>>	Anonymous Sun Dec 15 08:18:36 2019 No.1734957 File: 10 KB, 274x184, diy-key-2.jpg [View same] [iqdb] [saucenao] [google] >>1734935 Swiss precision key

>>	Anonymous Sun Dec 15 09:05:28 2019 No.1734984 File: 647 KB, 901x535, R390A.png [View same] [iqdb] [saucenao] [google] I see a R-390 for sale, about USD 450. I checked eBay for reference but prices are all over the place. So, is this a good price or not?

>>	Anonymous Sun Dec 15 09:19:48 2019 No.1734992 >>1734941 >What a lonely sad life you lead. yeah, id say that award would go to the loser that attempts to troll in /diy/

>>	Anonymous Sun Dec 15 10:02:25 2019 No.1735006 >>1734708 Make sure you have a good antenna and enjoy. It has a great power out and good sensitivity.

>>	Anonymous Sun Dec 15 12:36:25 2019 No.1735075 File: 47 KB, 749x500, rdzhv7wclq441.jpg [View same] [iqdb] [saucenao] [google] >>1734984 I smell a scam. A barely working one goes for a few grands.

>>	Anonymous Sun Dec 15 13:38:02 2019 No.1735103 Does anyone have a RM Italy amplifier? I'd like to pump by 100 watts out just for fun.

>>	Anonymous Sun Dec 15 16:11:53 2019 No.1735152 >>1734708 kill yourself fred

>>	Anonymous Sun Dec 15 19:53:11 2019 No.1735235 Anyone here listen to shortwave broadcast? Ham radio just doesn't interest me but I like listening to international radio stations.

>>	Anonymous Sun Dec 15 20:32:58 2019 No.1735257 >>1735152 No tom

>>	Anonymous Sun Dec 15 22:07:42 2019 No.1735317 File: 1.47 MB, 2268x4032, 2019-10-01.jpg [View same] [iqdb] [saucenao] [google] http://www.hfsignals.com/ Is the ubitx a good first transceiver? Or gay poo in loo shit?

>>	Anonymous Sun Dec 15 22:42:45 2019 No.1735333 >>1734790 What loop ya got there?

>>	Anonymous Mon Dec 16 01:51:12 2019 No.1735379 >>1735317 No, you need a decent bit of experience and potentially test gear to get it working properly.

>>	Anonymous Mon Dec 16 05:58:19 2019 No.1735410 >>1734900 noice

>>	Anonymous Mon Dec 16 06:36:53 2019 No.1735419 >>1735379 In that case what’s the cheapest route to start hitting HF bands for a poor college student?

>>	Anonymous Mon Dec 16 07:50:36 2019 No.1735426 >>1735419 Save ~250-300 and get a Xiegu rig or wait for a deal on something used.

>>	Anonymous Mon Dec 16 08:01:30 2019 No.1735429 >>1735419 Go to a ham fest as it's wrapping up and start offering 50% on boat anchors to guys who look like they need the money for gas to get back home >>1735426 >Cheap qrp radio Now we just need the availability of cheap amps.

Anonymous Mon Dec 16 10:26:16 2019 No.1735462

>>1734548
Maybe a HackRF as an upgrade. If all you're interested in is shortwave; the 7300 has a pretty great receiver, and on par with the R9500.
>>1735419
MCHF Clone or Xiegu G90. You're better off spending a little more to get a 450D or 7300, though.

>>	Anonymous Mon Dec 16 13:29:03 2019 No.1735528 >>1735419 The Pixie mentioned in the FAQ is just USD 3.

Anonymous Mon Dec 16 13:50:29 2019 No.1735534

>>1735333
DIY build using a 1 meter diameter loop of LMR400 for the radiator connected to a variable air cap. The driven small loop is just a piece of solid copper primary wire fed with coax. Support structure is scrap PVC fittings and a cheap Amazon tripod.

>>	Anonymous Mon Dec 16 14:48:35 2019 No.1735548 >>1735534 how come i never see people putting them outside for permanent use?

Anonymous Mon Dec 16 15:19:32 2019 No.1735565

>>1735548
The biggest hang-up is their need for specific fine-tuning. You can see a T-handle on the black box the LMR400 connects to, that rotates to adjust the variable air capacitor inside. Once you have it tuned to a frequency, the suitable bandwidth from that point is very small, like 10kHz or less. That means once it's adjusted to about a 1:1 SWR on, say, 7.185Mhz, if you tun your radio to 7.175 or 7.195 (or further either direction), the SWR will be over 30:1. So you basically have to have access to the antenna to fine tune it as often as you simply change frequencies.

There are people who build magnetic loop antennas for fixed outdoor use, but that will require a motor, power supply, reduction gearbox (for fine tuning), and a control unit with wire runs to the shack all so you can adjust that capacitor rotor remotely.

>>	Anonymous Mon Dec 16 15:29:32 2019 No.1735570 >>1735565 hmm...interesting. i think my next projects around going to be 6m and 20m moxons. seems a lot easier to build than yagis

>>	Anonymous Mon Dec 16 16:31:16 2019 No.1735595 >>1735235 >listen to shortwave broadcast? Yes, 9 MHz band, after dark. I'm currently listening to Voice of India on 9445 kHz (local dist 7250 km).

Anonymous Mon Dec 16 16:52:35 2019 No.1735605

>>1735462
How valid is the HackRF for HAM anyway (with supporting hardware of course)? I've been drooling for one quite some time as I'd like to use it for general RF exploration and to build a pulse radar.
I got my license ages ago when going to trade school but never made any out of it but want to change that.

Anonymous Mon Dec 16 18:28:56 2019 No.1735633

I have a homemade radio I'm trying to troubleshoot, and a couple technical questions.
Are broadcast frequencies much quieter than the amateur bands?
Is there anything going on in the 11.6-12.1MHz band? Midwest here, hearing nothing.
Do mag loops have to be fine tuned to recieve, or is +/- 1 MHz alright?

>>	Anonymous Mon Dec 16 19:44:43 2019 No.1735647 >>1735534 Where did you source the cap? I don't want to pay $100 for one. That has kept me from building one.

>>	Anonymous Mon Dec 16 20:04:03 2019 No.1735651 >>1735633 >Do mag loops have to be fine tuned to recieve Yes, or equipped with a broadband amplifier.

Anonymous Mon Dec 16 21:36:11 2019 No.1735681

>>1735605
Hack RF does 1 Mhz - 6 Ghz at ~32 mW ish, so you'd need an amplifier if you want more than that. If you want to play with radar stuff, figuring out things at low power and working your way up is definitely the way to go. It's a neat SDR transceiver, but if you want knobs and buttons you're better off with a traditional rig.
>>1735633
Broadcast frequencies are hit or miss and really depend on time of day. In NA there's only a few transmitters now, but in EU / Asia they're a lot more common.
11.6-12.1 is the 25 meter shortwave band.
> Mag loops
Mag loops have super narrow bandwidths, think <100 Khz. Having a tuning knob is critical to their operation.
Try eBay for air variable capacitors. Sadly they're getting harder to find.

Anonymous Mon Dec 16 23:32:21 2019 No.1735736

>>1735647

This is the one you want to use. With a 1 meter diameter loop of LMR 400 and a driven loop 1/5th the diameter of that you should be able to tune 60/40/30/20/17 meters all well below 2:1 SWR. Ideally you would also want a gear reduction to make tuning easier, but it still works without it. It just means the cap will be very sensitive to adjustments and require delicate tuning.

>https://www.amazon.com/gp/product/B07K1K1YSH

Anonymous Mon Dec 16 23:36:02 2019 No.1735739

>>1735647
>>1735736

Forgot to mention, this design is for QRP operation only. Anything over 10 or MAYBE 15 watts and you get spark-gap jumps across the plates of the capacitor. This will kill your efficiency and long term lead to arc-pitting on the cap's plates.

Anonymous Mon Dec 16 23:42:28 2019 No.1735741

>>1735570
The Moxon design is a sound one, effectively equivalent to a 2-element Yagi, but slightly more compact. With the calculators out there now on the web for Yagi's, they are also super easy to build if you have the space and can get at least 3 elements on there.

>>	Anonymous Mon Dec 16 23:53:18 2019 No.1735746 >>1735681 >Hack RF they seem pretty expensive , how bad do you think the chinese clones are?

>>	Anonymous Tue Dec 17 07:42:12 2019 No.1735880 I may be able to get up and running digital tonight, but was told I still need a ' PTT interface'. Would putting the transceiver in VOX mode suffice?

>>	Anonymous Tue Dec 17 08:23:14 2019 No.1735888 >>1735746 Clones are fine, it's an open source design. Nobody buys the genuine version anymore. >>1735880 What transceiver?

>>	Anonymous Tue Dec 17 08:36:28 2019 No.1735890 File: 1.54 MB, 2926x2221, IMG_20191217_083457__01.jpg [View same] [iqdb] [saucenao] [google] >>1735888 FT-101. Right now I have audio from the radio to PC and USB soundcard out to an audio cable

Anonymous Tue Dec 17 08:38:47 2019 No.1735893
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>>1735890
And this radio cable is out for delivery.
I had my expectations set really high for when I get off work, but only now it's clicking I need to tell the transceiver to transmit.
I warmed her up this morning and tried tuning with the microphone set in VOX, which didn't work, but I'm hoping that's due to the mic wiring.

>>	Anonymous Tue Dec 17 08:43:33 2019 No.1735895 >>1735746 The clones are pretty much the same thing, as its open source >>1735888 Have you used an amp with yours? looking for something in the 88m-144mhz range

>>	Anonymous Tue Dec 17 08:46:22 2019 No.1735896 >>1735890 VOX operation should be alright for digital so long as everything but the application you're using is muted. Have you checked vox works in regular operation ie SSB with a mic? It being an older radio it might just not work.

>>	Anonymous Tue Dec 17 08:49:29 2019 No.1735899 >>1735895 >Have you used an amp with yours? Yeah but only a 2.4GHz amplifier for satcoms, You could probably build a signal chain into an RA30 type amplifier easily enough for VHF.

Anonymous Tue Dec 17 09:00:50 2019 No.1735903

>>1735899
>You could probably build a signal chain into an RA30 type amplifier easily enough for VHF.
ah, that a bit above my level...for now.
the most ive really done so far is replace some bad caps, and thats just because it was blatantly obvious that was the problem

>>	Anonymous Tue Dec 17 09:13:08 2019 No.1735909 >>1735896 I tried VOX in LSB this morning by talking into the D104 mic without success. If I can't get VOX to work, will I need something like an Easy Digi? Could I just run another audio cable into the mic interface from the PC?

>>	Anonymous Tue Dec 17 09:17:26 2019 No.1735910 >>1735909 If VOX is fucked you're going to need to need something to trigger PTT on transmission. You'll need a Signalink/EasyDigi/homebrew solution with an FTDI serial dongle and isolation transformer.

>>	Anonymous Tue Dec 17 11:52:59 2019 No.1735969 >>1735910 I appreciate your help. Fingers crossed. Looks like the Easy Digi has VOX models. Wouldn't want to get one of those!

>>	Anonymous Tue Dec 17 12:34:13 2019 No.1735991 >>1735969 Yeah, the Easy comes in about a hundred different forms and kits for different radios. You might find something meant for the FT-101 specifically or you might need to make a project out of building something for it.

>>	Anonymous Tue Dec 17 13:37:34 2019 No.1736021 File: 228 KB, 432x629, image-39.png [View same] [iqdb] [saucenao] [google] >>1735969 Shouldn't hurt to play around with the Audio In and PTT Jack's in the back

>>	Anonymous Tue Dec 17 18:31:05 2019 No.1736163 File: 43 KB, 92x216, ticker.png [View same] [iqdb] [saucenao] [google] ticker mode is getting popular

Anonymous Tue Dec 17 18:41:25 2019 No.1736167
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>just bought a nice piece of property just big enough I can run a beverage antenna northeast towards Euroland
>buried powerlines just off the tip make it completely unusable
I even tried shortening it 50 feet

>>	Anonymous Tue Dec 17 20:28:39 2019 No.1736216 File: 1.62 MB, 2094x2865, IMG_20191217_195045__01.jpg [View same] [iqdb] [saucenao] [google] >>1735991 VOX works - just needs to be gentle with the mic gain!! I've only made 2 stateside contacts, but that's 2 more than I had before tonight.

>>	Anonymous Tue Dec 17 23:12:03 2019 No.1736280 File: 1.76 MB, 4032x3024, cwkey.jpg [View same] [iqdb] [saucenao] [google] >>1735528 Alright ordered one, Also printed off a key while I was at it. Just need to find a sacrificial old pair of earbuds to finish it off. pls r8.

Anonymous Wed Dec 18 01:50:40 2019 No.1736332

>>1736280
Looks nice. Is it 3D printed? You might want to add weight to it so that it doesn't shift around when you use it.

Also check the FAQ, the Pixie as it is ha a lot of harmonics but the FAQ has references to how you improve it, mostly a change in transistor and more importantly a better low pass filter.

>>	Anonymous Wed Dec 18 02:01:18 2019 No.1736334 >>1736167 Why not run a ground wire underneath and the beverage antenna as high up from that as practical?

>>	Anonymous Wed Dec 18 11:27:32 2019 No.1736458 >>1736332 Yep 3d printed, I was thinking tacking a sheet of foam/rubber I've got lying around for the bottom to prevent that. Any clue where I can find the transistor recommend in the FAQ or one equivalent, doesn't seem to be produced anymore.

>>	Anonymous Wed Dec 18 13:29:21 2019 No.1736521 >>1736334 W-would that work? I thought a beverage needed to be about 5 feet off the ground to get those sweet low angle dx signals?

>>	Anonymous Wed Dec 18 14:51:10 2019 No.1736548 When are the best times & frequencies to work digital, and how regularly does it seem the community submits their logs?

>>	Anonymous Wed Dec 18 15:06:34 2019 No.1736549 >>1736548 neither

Anonymous Wed Dec 18 15:58:40 2019 No.1736559

>>1736548
What?

Digital is in use all the time the bands are reliable. FT8 is still the hit contender and you can hear it in use almost 24/7 on the right bands.

And submits logs to where? What community? Are you talking about larger logbook/QSL groups like LotW, QRZ.com, etc? Or some specific contest log? You're asking a strange and vague question.

Anonymous Wed Dec 18 16:27:01 2019 No.1736570

>>1736559
Yea, I'm a strange kinda guy.
I guess I'm trying to get a feel for when the frequencies are open for digital modes and which to work when to maximize my chances of DX.
And you're spot on, LotW and QRZ are the two I know and have only started using them recently.
I have 4x QSL to QSOs - do hams wait and upload every month or something?

>>	Anonymous Wed Dec 18 17:32:45 2019 No.1736588 File: 117 KB, 586x607, Stalin.jpg [View same] [iqdb] [saucenao] [google] >>1736570 . . . . .

Anonymous Wed Dec 18 18:34:30 2019 No.1736602

>>1736570
>I'm trying to get a feel for when the frequencies are open for digital modes and which to work when to maximize my chances of DX.
As stated previously, shit like FT8, literally never stops , no matter how bad the band conditions are. It's one of the reasons I find it boring, desu. That, and the messages are very brief and impersonal. It's basically spam over the radio.

Anonymous Wed Dec 18 20:26:45 2019 No.1736660

>>1736570
Learn about band characteristics. there's real time propagation data in the OP post. Pskreporter will give you live FT8 reports, WSPRnet is another one to check where the bands are reaching out too.
>>1736602
FT8 is popular because there is no talking, it works great, it's fast, and the UI is Semi-automated. For people chasing paper (DXCC worked 100 countries, etc.) it's a fast way to make contacts. You can use it nearly as well as WSPR to see where the band is open.
I'll happily use JS8Call, PSK31 or Olivia / Contestia to chat with people, but there's a pretty big segment of the hobby which isn't here for chatting.

Anonymous Wed Dec 18 21:35:37 2019 No.1736684

>>1733499
I thought I read something a while back about a way of connecting two yagis' on a mast, one pointed at the town and one pointed at the farm that would redirect the signal without any repeater or power.
Maybe I misunderstood, but it might be something worth looking into.

>>	Anonymous Wed Dec 18 22:07:32 2019 No.1736694 >>1734992 Winner winner chicken dinner right here

>>	Anonymous Thu Dec 19 10:45:19 2019 No.1736896 >>1736602 >>1736660 Poor band conditions are probably also a reason for the success of FT8 and other digital modes, they just get through anyway.

Anonymous Thu Dec 19 16:18:31 2019 No.1737002

>>1736216
>>1735890
And now I'm having an issue with WSJT-X intermittently not stopping transmissions after 15 seconds.
I'm formulating the idea there's some rf or rf-generated audio from the PC that keeps the VOX open.
The PC, radio, and tuner are grounded. During this issue, the monitor(s)' video is affected as well. When I disconnect the SDR connections and use a mic, the monitors
are fine. I tried disconnecting the monitors one at a time and neither solved the issue (was thinking the VGA/HDMI cable or the monitor were the culprit).
I've noticed this usually happens after I've had the radio running for an hour or so. Is it my ancestors telling me to get fresh air?

>>	Anonymous Thu Dec 19 17:30:02 2019 No.1737020 >>1737002 Try getting some ground loop isolation stuff for between the computer and radio.

>>	Anonymous Thu Dec 19 18:50:09 2019 No.1737059 >>1733669 All that technology and that fucker can't even get a decent pair of headphones?

>>	Anonymous Thu Dec 19 18:53:37 2019 No.1737061 Y’all ever hear any scary shit?

Anonymous Thu Dec 19 18:59:34 2019 No.1737063

What's a antenna design (that I can make myself) to use to work all amateur HF bands? I understand antennas are typically centered around one band but can work other bands, though not as well. This design would be my first antenna, so I'm thinking of some sort of center fed dipole random wire antenna.

>>	Anonymous Thu Dec 19 19:32:54 2019 No.1737081 >>1737063 Random wire and a quality antenna tuner.

>>	Anonymous Thu Dec 19 19:49:33 2019 No.1737089 >>1737081 I've got a Yaesu FT-450D that has a built in tuner. Would that do it? As an aside, does anyone have recommendations for a quality (but not overkill) power supply that can run the 13.8 VDC 22 amp that's required?

Anonymous Thu Dec 19 20:25:05 2019 No.1737114
File: 26 KB, 490x593, Fan Vertical.jpg [View same] [iqdb] [saucenao] [google]

>>1737063
If you want cheap and to DX, a fan vertical wire.
I scaled pic related for 2, 6, 10, 12, 15, 17, 20, 40, and 80 meters. The cost? $100 from the big box rape store plus scrape pipe.
Basically a DIY DX Commander.

>>	Anonymous Thu Dec 19 23:49:36 2019 No.1737203 How do I shape antenna??

>>	Anonymous Fri Dec 20 10:36:37 2019 No.1737401 File: 23 KB, 393x375, Anal cancer.jpg [View same] [iqdb] [saucenao] [google] >>1737063

>>	Anonymous Sat Dec 21 04:07:03 2019 No.1737808 >>1737114 How good is that compared to a random length end fed?

>>	Anonymous Sat Dec 21 07:15:03 2019 No.1737836 Anyone know wtf these drifty kinda signals are? They seem to be some kind of local interference or something, as they don't show up at other receivers. https://imgur.com/a/GEKpZ4I

>>	Anonymous Sat Dec 21 10:42:45 2019 No.1737903 >>1737808 >https://imgur.com/a/GEKpZ4I Superior, since it's a series of truly resonant aerials.

>>	Anonymous Sat Dec 21 12:25:12 2019 No.1737938 >>1737020 Does it make any sense at all it only happens when I TX on 20 and 40M above 30 watts? 80M gets a free pass

>>	Anonymous Sat Dec 21 14:02:19 2019 No.1737973 Who wants to take the Extra for me. $10?

>>	Anonymous Sat Dec 21 15:57:11 2019 No.1738046 >>1737938 Your feed line is radiating.

>>	Anonymous Sat Dec 21 17:09:49 2019 No.1738089 >>1737973 >take the Extra for me Have a Pixie?

>>	Anonymous Sat Dec 21 18:59:02 2019 No.1738134 >>1738089 I actually do, it's a deal!

>>	Anonymous Sat Dec 21 19:07:33 2019 No.1738136 >>1738046 That's a natural thing and a torrid would be the solution verses and audio ground loop isolator?

>>	Anonymous Sat Dec 21 19:12:22 2019 No.1738137 >>1738136 If you mean a choke then maybe, you should really have both though.

>>	Anonymous Sat Dec 21 20:16:37 2019 No.1738171 >>1738136 It would be wise to have the isolation transformer, in addition to fixing the RF in the shack.

Anonymous Sat Dec 21 20:51:36 2019 No.1738186

>>1737002
>>1738136
Try to find one of these:
https://forums.qrz.com/index.php?threads/mfj-1275-sound-card-radio-interface.625326/
It works well with older radios, has built-in audio transformers, can PTT via serial, etc. As you can see they go for dirt cheap used. You may need a serial-to-USB cable if your computer doesn't have a serial port.

>>	Anonymous Sat Dec 21 20:58:06 2019 No.1738190 >>1738186 I see you have a 4 pin mic, so you'd have to find the mfj-1275T not the 1275 or the 1275M. It'd be worth it, rather running how you have it now.

>>	Anonymous Sat Dec 21 21:47:14 2019 No.1738201 >>1737903 >Superior, since it's a series of truly resonant aerials. Yeah but I mean in practice. How much better the reception and transmission actually are.

>>	Anonymous Sat Dec 21 22:43:41 2019 No.1738246 The HF bands in my country are literally dead silent 90% of the time except for FT8, is it even worth it to become a ham?

>>	Anonymous Sat Dec 21 22:58:55 2019 No.1738249 >>1738246 Nope, please step to the left and kys. Thank you.

>>	Anonymous Sat Dec 21 23:32:44 2019 No.1738263 >>1738249 Why r u so mad?

>>	Anonymous Sun Dec 22 04:34:12 2019 No.1738377 File: 482 KB, 821x728, psk.png [View same] [iqdb] [saucenao] [google] >>1738246 >The HF bands in my country

>>	Anonymous Sun Dec 22 07:59:11 2019 No.1738431 >>1738246 >I don't get any reception >Should I join a hobby based off of reception? Your statement and conclusion are both flawed.

>>	Anonymous Sun Dec 22 10:07:50 2019 No.1738468 >>1738246 Fuck you!

>>	Anonymous Sun Dec 22 10:30:26 2019 No.1738474 >>1738246 How would you know what the HF bands look like if you're not even in the hobby? What did you build a 40m long antenna before even getting a license?

>>	Anonymous Sun Dec 22 10:37:55 2019 No.1738476 >>1738474 >What did you build a 40m long antenna before even getting a license? Plenty of people do that and hook it up to an SDR for RX only operation.

>>	Anonymous Sun Dec 22 11:00:52 2019 No.1738486 Anyone got a download of ARRL's Understanding Basic Electronics book?

>>	Anonymous Sun Dec 22 11:16:46 2019 No.1738495 >>1733687 ok boomer

>>	Anonymous Sun Dec 22 12:45:35 2019 No.1738541 >>1738486 Bump. No rips/PDFs exist, so I guess I'm just looking for someone with the Kindle version who is willing to share. Any help would be appreciated.

>>	Anonymous Sun Dec 22 21:11:09 2019 No.1738868 t

>>	Anonymous Mon Dec 23 02:52:22 2019 No.1738993 >>1738377 What's that, ft8? I already acknowledged there's ft8 going on 24/7. I just don't care about it. But I haven't detected any WSPR or js8. >>1738468 Why does my post make you mad?

>>	Anonymous Mon Dec 23 02:57:49 2019 No.1738994 >>1738474 Listening to online SDRs. I ordered an RTL SDR dongle a couple months ago but still haven't got it in the mail. But yeah, I'll string a bunch of wire and see what I can receive if the mail people haven't lost the thing.

>>	Anonymous Mon Dec 23 03:02:31 2019 No.1738995 I haven't even heard any strong cw signals except one guy from a nearby country who sends magazine articles in morse code for decoding practice for hours on end.

Anonymous Mon Dec 23 03:15:28 2019 No.1738996

>>1738431
See >>1738994
I'm listening to radios set up by actual hams on the Internet, so it's not that I just don't know how to set up an antenna.
There are SSB conversations sometimes, but it seems to consist mainly of paternalistic old hams telling the younger guy what they think of his transceiver model and who's got the best sounding audio, which isn't something I'm interested in. Which is why I'd be interested in digital or cw where there's no audio quality to brag about, and in the case of cw there's a little more skill involved. But I don't like ft8 because it's pretty useless besides testing propagation or antennas, since it doesn't allow exchanging much information.

>>	Anonymous Mon Dec 23 06:23:25 2019 No.1739019 File: 56 KB, 1031x222, P4-A.png [View same] [iqdb] [saucenao] [google] >>1738996 >I'm listening to .. I was listening to a really long (technical) conversation on the transponder, full duplex like on a phone and SSB without ducktalk, that's progress.

Anonymous Mon Dec 23 07:31:39 2019 No.1739032

>>1738996
CW is my personal end goal. I don't really like talking to people directly, but through code sounds fun.

Problem is, like you said it requires skill, which I'm working on, but it take a lot of time. In my case I also want to build a retro tube reciever and tube transmitter so that adds its own complications.

Anonymous Mon Dec 23 07:58:35 2019 No.1739035

>>1739019
Yeah I don't doubt it. But the people on that satellite are part of the most technical group of hams just because of the skill it takes to get the microwave gear going.
I'm in south america, that satellite doesn't reach here (apart from that tiny bit of brazil), and from what i've seen on youtube LEO satellites are just a cacophony with people barely being able to get their callsigns out before the pass is over.

>>1739032
So how good are you at it so far? I can copy at 10 wpm.
If you want to build a tube radio you got your work cut out for you.

Anonymous Mon Dec 23 08:25:12 2019 No.1739046

>>1739035
I can key at about 20wpm with 10-15wpm Farnsworth. Lesser used letters and numbers get me good still.
I still can't copy for shit.

I'm actually less intimidated by the radios than the language ahah, there's so much information out on them as they used to be super popular for novice licensed hams. Sourcing the parts and not breaking shit will probably be my biggest hurdle.

>>	Anonymous Mon Dec 23 08:30:33 2019 No.1739047 >>1739046 Paddles or straight key? Yeah I still don't know much about abbreviations and Q codes and stuff Do you already have/are planning to get oscilloscope and function generator?

Anonymous Mon Dec 23 08:39:45 2019 No.1739052

>>1739047
I use a WWII J-5-A straight key. At the moment I don't have much else than a NanoVNA and a multi-meter, I'd like a scope but those cost $$$ and I'm a poorfag uni student. I've watched a bunch of vids by a guy who does retro builds and he goes over how to test them with simple tools such as just a multi-meter. My main worry atm is txing out of band, but this is a long way out so thing may change.

My q code is still trash too. I know DE, K, QTH, QRP... I'm more trying to learn morse first. Only been at it for a few months inbetween working on classes, and dabbling with leo amsat. Doesn't help I broke my practice oscillator, so now I need to figure out where my fault is kek.

Anonymous Mon Dec 23 08:49:21 2019 No.1739055

>>1739052
Yeah well if you live in the US you can get them for cheap, if you live elsewhere you might still find some piece of shit for cheap but it's gonna be more difficult. Still I guess would be useful to check for overdriving a stage and stuff like that.
>I've watched a bunch of vids by a guy who does retro builds and he goes over how to test them with simple tools such as just a multi-meter
link?

>>	Anonymous Mon Dec 23 08:52:25 2019 No.1739056 >>1739055 >link This is the guy, you can pick pretty much any topic his channels pretty comfy. https://youtu.be/Ls_Y_USteQQ I am in the U.S. so maybe I'll just break down and get one.

>>	Anonymous Mon Dec 23 09:20:41 2019 No.1739067 File: 177 KB, 1053x1040, 20191223_061903-1053x1040.jpg [View same] [iqdb] [saucenao] [google] >>1739052 Aay fixed the practice oscillator. Was just simply to heavy of wire I used.

>>	Anonymous Mon Dec 23 10:17:15 2019 No.1739092 >The HF bands in my country are literally dead silent 90% of the time >>1738993 >What's that, ft8? >I haven't detected any WSPR It's like you don't know what you're doing

Anonymous Mon Dec 23 10:24:14 2019 No.1739098

>>1738996
>it seems to consist mainly of paternalistic old hams telling the younger guy what they think of his transceiver model and who's got the best sounding audio
You whining fags always make light of this as some sort of bad thing. This is no different than going to a car show or a race (in any discipline) and BSing with your competitor or felllow show-goer. As much as you fags detest communicating with people directly and non-anonymously, that's the main component of amateur radio. That, plus building, maintaining, and operating gear in order to make the comms. happen.

Anonymous Mon Dec 23 10:44:06 2019 No.1739101

hey fellas, built a fan dipole (80/40/20) and used some small pvc to separate them. drilled holes in the pvc to run the wires through, but having trouble keeping them in place. used zip ties to try to hold them in place, but not good enough

any suggestions?

>>	Anonymous Mon Dec 23 10:45:25 2019 No.1739102 >>1739101 Grommets.

>>	Anonymous Mon Dec 23 10:49:15 2019 No.1739103 >>1739102 i was looking through some at the hardware store, but none of them seemed to be what i really wanted. could you suggest some?

>>	Anonymous Mon Dec 23 10:54:14 2019 No.1739106 File: 3.53 MB, 2460x2721, IMG_20191223_104727__01__01.jpg [View same] [iqdb] [saucenao] [google] >>1739101 I'm using bungees, carribeaner, and Prusik knot. $8 Harbor Freight solution

>>	Anonymous Mon Dec 23 11:01:15 2019 No.1739109 >>1739103 Fucking get some closed ones and poke your own holes in them then, it's not rocket science.

>>	Anonymous Mon Dec 23 11:15:53 2019 No.1739116 File: 22 KB, 400x369, Fuck.jpg [View same] [iqdb] [saucenao] [google] >>1739106

Anonymous Mon Dec 23 11:50:24 2019 No.1739130

>>1739092
>>The HF bands in my country are literally dead silent 90% of the time
Yes, that's part of what I said. Why are you quoting it without commenting on it? And why are you leaving the part where I said "except for ft8" right after that in the same sentence?
>>What's that, ft8?
>>I haven't detected any WSPR
>It's like you don't know what you're doing
That "I don't know what I'm doing" doesn't follow from those sentences.
I know what I'm doing enough to know that there's little or no WSPR activity in my country. First, because I was able to decode WSPR when feeding the audio from US WebSDR receivers into WSJT-X, and second because there are no WSPR spots or transmissions from my country on WSPRNet. https://wsprnet.org/drupal/wsprnet/map As you can see, there are plenty of countries outside the US and Europe with no WSPR spots.
I asked if the map you posted was of ft8 because the PSKReporter map gives you the ability to filter spots by mode, and you didn't show that part of the site in the screenshot. Now that I've visited the site I've noticed the default is to include all modes in the map, so the picture you're showing is probably of that, which yes, includes ft8. It certainly isn't WSPR because if you set pskreporter to display WSPR for some reason it doesn't show any data. I can back that fact up with this forum post complaining about that issue with pskreporter and WSPR http://wsprnet.org/drupal/node/6247

Anonymous Mon Dec 23 12:16:17 2019 No.1739138

>>1739098
>You whining fags always make light of this as some sort of bad thing. This is no different than going to a car show or a race (in any discipline) and BSing with your competitor or fellow show-goer.
The thing is, audio quality is 90% placebo. There are plenty of stories where some guy works somebody with a Baofeng and will be told how shitty he sounds, and then another time lie and say it's a Yaesu and be complimented on the sound quality.
And even if the difference was real, who cares? As long as the audio is not horribly distorted.
Now, if you got a kilowatt amplifier, I could understand being a little smug. But being smug about having an expensive transceiver is bs. Especially when the main selling feature of those is having a panadapter and digital audio filtering, both of which can be accomplished with a $30 dongle and a PC with some glue electronics to make a TX/RX switch and whatnot. Even the other two disadvantages of old transceivers, frequency drift and shitty preamp, can be mitigated with preamps, input filters, external DDS VFOs, etc. But how many hams have even attempted those modifications? Why bother learning electronics and improvising stuff when you can buy an Icom and brag about it with your pals, right? It's not nearly as elite of a hobby as you make it out to be.
>As much as you fags detest communicating with people directly and non-anonymously, that's the main component of amateur radio. That, plus building, maintaining, and operating gear in order to make the comms. happen.
Too bad the extent most hams know how to build gear is soldering a coax to a wire and crimping a connector at the other end, or at most wind a ferrite to make a balun according to a schematic they found online.

>>	Anonymous Mon Dec 23 12:17:22 2019 No.1739139 >>1739138 *shitty frontend

Anonymous Mon Dec 23 12:37:06 2019 No.1739145
File: 213 KB, 876x1190, sa_coverage.jpg [View same] [iqdb] [saucenao] [google]

>>1739035
>that tiny bit of brazil
It's almost half of it and PY is well known among the transponder users. The end of the line so far seems to be the guy from FY with less than 3° elevation and 'tropical vegetation' in the way..
BTW: A new Chinese-Brazilian sun-sync sat has just been launched which carries a 20kHz U/V linear transponder. It is called CAS-6/TIANQIN-1 and the call sign is BJ1SO.

>>	Anonymous Mon Dec 23 13:42:10 2019 No.1739168 >>1739145 Cool, didn't know there was so much coverage in brazil.

>>	Anonymous Mon Dec 23 13:47:42 2019 No.1739170 >>1739130 >>1739138 >Look, I'm legit bros! See my generic ham related complaints. Too bad you missed using the no-code license grumbling of yore.

>>	Anonymous Mon Dec 23 14:02:46 2019 No.1739175 File: 24 KB, 527x420, tips.jpg [View same] [iqdb] [saucenao] [google] >>1739138

>>	Anonymous Mon Dec 23 14:02:48 2019 No.1739176 >>1739170 Morse code is cool, but I see no reason to require it when there are many things that can be done with radio that don't require code.

>>	Anonymous Mon Dec 23 14:06:40 2019 No.1739177 File: 13 KB, 185x272, Breakfast.jpg [View same] [iqdb] [saucenao] [google] >>1739176

>>	Anonymous Mon Dec 23 14:07:51 2019 No.1739179 >>1739176 FT8 is the new CW and requires more technical skills which are more applicable to the route communication is going.

>>	Anonymous Mon Dec 23 14:20:56 2019 No.1739184 >>1739106 That looks awesome!! Do you have the plans for that? How'd you hook everything in at the bottom?

Anonymous Mon Dec 23 14:22:29 2019 No.1739186

>>1739179
Maybe not "technical" skills, but FT8 requires an order of magnitude less skill than CW. And I don't see how it requires that much technical skill either. You connect the radio to the PC's soundcard through the appropriate interface, select a frequency slot and begin transmitting. At most you'll need a few chokes to prevent common mode RF from fucking with your PC when transmitting. And for receiving, as long as the audio is being fed to the program it'll do everything by itself.
>>1739177
Those are some really good arguments you're putting forth fren.

>>	Anonymous Mon Dec 23 14:50:58 2019 No.1739188 when the internet goes out, what will be the fastest mode to send dick pics? legal or not legal for ham use

>>	Anonymous Mon Dec 23 15:08:54 2019 No.1739195 >>1739188 a 56k dial-up modem plugged into a 50 kW AM broadcast station

>>	Anonymous Mon Dec 23 18:29:42 2019 No.1739281 File: 744 KB, 1880x1643, IMG_20191223_182647__01.jpg [View same] [iqdb] [saucenao] [google] >>1739184 It's pretty well documented in other threads. 30' scrap plumbing pipe and 14g thhn from Home Depot plus a tuner has gotten me from 160M-2M.

Anonymous Mon Dec 23 18:33:04 2019 No.1739283

>>1739101
It'll sound dumb, but tie the wire in a simple overhand knot after passing it through one side of the PVC pipe, and then feed the tail end through the other side. Effectively, you want to make a knot in the wire that's inside the PVC, and make sure the holes drilled in the PVC are smaller than the knot so it can't got through them. This will keep the PVC centered on that spot in the wire. A small little knot like that should not effect the antenna performance at all either, and it'll still allow some slight play and rotation of the PVC so it doesn't get stressed in the wind, etc.

>>	Anonymous Mon Dec 23 18:34:08 2019 No.1739284 File: 1.61 MB, 1635x2009, IMG_20191124_161419__01.jpg [View same] [iqdb] [saucenao] [google] >>1739281 Wires are collected here in a box I built for $10 in 2 hours

>>	Anonymous Mon Dec 23 22:28:39 2019 No.1739366 >>1739283 i thought about doing that, but was concerned it might break easier.

Anonymous Mon Dec 23 23:12:27 2019 No.1739387

>>1739366
Depends on the wire you're using. For long term installs I use 12ga or 14ga stranded THHN, which has nice thick strands and a firm insulation. Putting a simple knot in it once would be fine, but just don't work that spot over and over or it'll weaken and break.

If you're using cheaper copper clad aluminum or something very thin, yea it might be a worry.

Anonymous Tue Dec 24 19:02:24 2019 No.1739763

I got my hands on an XTS5000R that is P25 capable. All the fudds of ham cannot hear me transmit my messages to my inner circle of P25 users. I've got MDC1200 on my radio and even have the Talk Permit Tone going on it despite the radio being non-trunking. Being a Motorola hacker has its perks. I've got my Tech License and placed a Motorola Quantar repeater system up at the local tower. It's 450 feet high and has a foot print of 52 miles. I'm located in Waco, TX.

Anonymous Tue Dec 24 21:43:57 2019 No.1739802

>>1737089
I have one too. The internal tuner only tunes a 3:1 SWR or less. Better for squeezing out a little more bandwidth from a resonant antenna than tuning a multi band one that often has a rather high SWR on the frequencies of use. Get an MFJ external tuner. Can be had for no more than $150 new, even less used.

>>	Anonymous Tue Dec 24 21:46:36 2019 No.1739804 >>1738246 Depending on where you live, being the only active ham from there on a particular mode could make you a VERY popular guy with DX-chasing hams in other countries.

>>	Anonymous Tue Dec 24 21:50:51 2019 No.1739806 >>1739101 Wrap electrical tape around the wire in the place where you want the spacer to stay. It works for me.

Anonymous Tue Dec 24 21:58:52 2019 No.1739808

>>1739177
t. Boomer that can’t accept that there are technologies out there that surpass CW for weak signal work.

I have a degree of respect for those who can do CW. If you like it, that’s cool. But don’t kid yourself and think it’s better than PSK31, Olivia, etc for weak signal work because it’s not.

>>	Anonymous Tue Dec 24 21:59:55 2019 No.1739810 >>1739188 SSTV is an option.

>>	Anonymous Tue Dec 24 22:01:31 2019 No.1739811 >>1739188 Packet BBS

>>	Anonymous Wed Dec 25 01:24:09 2019 No.1739866 What is a decent oscilloscope in the $200 range?

Anonymous Wed Dec 25 03:26:53 2019 No.1739893

>>1739284
>Still not soldered

Galvanic corrosion will render those crimps open circuit / intermittent / prone to arcing before long.

Solder them and cover all terminal to bolt to plate joints in grease. And then there is the non waterproof connector and its joint to the box.

>>	Anonymous Wed Dec 25 06:52:51 2019 No.1739926 >>1739866 Not enough for a decent new one. Buy used. Best one is the highest bandwidth one.

Anonymous Wed Dec 25 06:58:58 2019 No.1739928

>>1739808
You don't know what you're talking about. With morse you can set a narrowband filter only a couple hertz wide and bring up signals that are completely impossible to hear on normal ssb. High bandwidth modes like Olivia and psk31 need a much stronger signal to work. Now with weak signal modes like WSPR or even FT8, maybe.

Anonymous Wed Dec 25 10:21:53 2019 No.1739973

>>1739928
Not so. PSK31 can decode just as far or even a tad further than CW can into the noise. Olivia is even better. Some of the more exotic modes even better than that. If CW was still useful, more people besides boomer ham radio operators would be using it.

Anonymous Wed Dec 25 10:40:48 2019 No.1739985

>>1739973
>If CW was still useful, more people besides boomer ham radio operators would be using it.
i recon its still useful, just these here youngins cant learn nothin worth a hoot no more.
yous got to fiddle with you silly gadgets and fancy chinamen do-dads to have a conversation, and you wont be able to give a signal report.
also, i cant talk about my gout.

>>	Anonymous Wed Dec 25 14:06:55 2019 No.1740049 >>1739973 CW only needs a very simple transceiver. The only problem is that it requires a skilled operator.

>>	Anonymous Wed Dec 25 14:48:40 2019 No.1740063 anyone get ham stuff for christmas?

>>	Anonymous Wed Dec 25 14:50:27 2019 No.1740065 >>1740049 I like skilled operators who honor my 'pse qrs' request..

Anonymous Wed Dec 25 16:16:50 2019 No.1740108

>>1740065
Ah yes, I am in the same situation. My skills are old and rusty, but I want to get myself a small rig and go QRS for a while. I like to think I was competent so I wonder how long it takes to get back to old speed and skills with W and Z-codes.

>>	Anonymous Wed Dec 25 16:22:42 2019 No.1740111 >>1740108 Q code of course. Never trust autocorrect.

>>	Anonymous Wed Dec 25 16:30:10 2019 No.1740112 >>1740049 Still obsolete.

Anonymous Wed Dec 25 16:31:24 2019 No.1740114

>>1740063
I didn't but I'd love one of those 5 watt cw thingies. They look so cute! Too bad they're so expensive, given they're basically chink tier toys. Just a micro, a couple analog ICs and SMD components and a $3 MOSFET. Should be 50 dollar tops.
>>1739973
Not so.
https://www.pa3fwm.nl/technotes/tn09b.html
All the comparisons I could find put CW at a better SNR capability than PSK31. I'm not sure about Olivia, but I really don't think a signal with a bandwidth of 300 Hz and relatively high datarate can compete with a signal only 5 Hz wide, at least for slow code (<15 wpm). I don't know what filters were used for the CW data in that site's chart, probably wider than it has to be if the audio wasn't processed by software on a computer as no receiver that I know of can go as narrow as the minimum required, which increases the overall noise level and makes copying more difficult than it has to be with strict filtering.

>>	Anonymous Wed Dec 25 16:49:16 2019 No.1740123 File: 257 KB, 1025x1376, Zoomer - Day-in-the-life.jpg [View same] [iqdb] [saucenao] [google] >>1740112

>>	Anonymous Wed Dec 25 17:28:06 2019 No.1740132 >>1740114 You obviously didn’t read the article in its entirety. It plainly states that method is flawed and when measured in the correct way (energy per bit), PSK31 outperforms CW.

>>	Anonymous Wed Dec 25 18:38:18 2019 No.1740163 File: 87 KB, 900x900, tip.jpg [View same] [iqdb] [saucenao] [google] >>1740132

>>	Anonymous Wed Dec 25 18:40:07 2019 No.1740164 File: 3.58 MB, 630x354, 1422769092898.gif [View same] [iqdb] [saucenao] [google] >>1740132

>>	Anonymous Wed Dec 25 20:35:38 2019 No.1740207 >>1740132 Nice goalpost moving. You weren't talking about data rate per watt, you were talking about "decoding into the noise", which pressumably means the SNR at which you're able to get any intelligible information across at all.

Anonymous Wed Dec 25 21:22:37 2019 No.1740220

>>1740063
I got a basic QRZ award while working in between party and nap schedules. Sometimes it's the small things, especially when your gifts start becoming shoes and jeans and you genuinely appreciate it.
Mom gave me a check which I haven't looked at yet, but am contemplating a new rig. Still doesn't seem right given the grand scale of appreciation and depreciation.

>>	Anonymous Wed Dec 25 21:43:08 2019 No.1740228 >>1740207 This conversation is obviously over your head. Exactly what I would expect out of anyone who still touts CW in an era of digital signal processing. Look, I like it for what it is but it’s obsolete.

>>	Anonymous Wed Dec 25 22:20:04 2019 No.1740238 I can't reach the FAQ. I'm getting a "site can't be reached" error. Is it down or am I just retarded?

>>	Anonymous Wed Dec 25 22:28:04 2019 No.1740241 >>1740238 First day on the interwebz?

>>	Anonymous Thu Dec 26 06:58:01 2019 No.1740354 >>1740114 >Should be 50 dollar tops Perhaps time to create the 4ch radio? Use a cell phone for gui and audio dsp to save cost and complexity.

>>	Anonymous Thu Dec 26 07:10:39 2019 No.1740361 Is the btech 25x4 a decent mobile radio? I want to have 1.25m to pair with my vx-6r.

>>	Anonymous Thu Dec 26 08:20:18 2019 No.1740375 My furthest confirmed DX has only been 2,700 miles (digital, 20 meters). Where should I start in order to increase that distance? IE. Is it most likely my operating technique, improper timing of the band, a lacking antenna ...

>>	Anonymous Thu Dec 26 10:33:38 2019 No.1740391 File: 25 KB, 650x487, Dunning-Kruger effect (edit).png [View same] [iqdb] [saucenao] [google] >>1740354

Anonymous Thu Dec 26 10:55:25 2019 No.1740400
File: 134 KB, 1200x675, G90.jpg [View same] [iqdb] [saucenao] [google]

>>1733618
Just found out the price will be around 1000 Eur 1150 USD.

Ordered a Xiegu G90 instead. Only costs half, has 20 W PEP, Antenna tuner and is a SDR with waterfall display a SWR scanner (nice for a magnetic loop tuning).

Current draw on RX max 500mA@13.8V, Max current draw on TX 8A@13.8V.

There's a fitting PA 125W and soon there will be a 5 inch LCD panadapter for it.

There is steady firmware updates that add features.

>> https://youtu.be/jrvDsz0aAGA

>>	Anonymous Thu Dec 26 11:06:13 2019 No.1740406 >>1740400 Very cool. Next needs to be a budget friendly amp

>>	Anonymous Thu Dec 26 12:29:50 2019 No.1740436 >>1740406 Theres a 500 Eur PA https://xiegu.eu/product/xpa125-100w-solid-state-linear-amplifier/ But I think with 20 Watts PEP you don't really need a PA. There is a 50 W PA for 160 Eur / 200 USD for 5 W PEP rigs: MX-P50M

>>	Anonymous Thu Dec 26 12:31:05 2019 No.1740437 >>1740400 Good luck, Xiegu quality control is fucking garbage.

>>	Anonymous Thu Dec 26 12:40:56 2019 No.1740440 >>1740437 YOUR RMA REQUEST HAS BEEN RECEIVED

>>	Anonymous Thu Dec 26 12:58:47 2019 No.1740446 >>1734266 For that money I would buy it immediately.

Anonymous Thu Dec 26 13:02:12 2019 No.1740447

>>1740437
EU laws. 2 year mandatory warranty. Also you have a mandatory 2 week period where you can try out the device and send it back even if it is not faulty, no questions asked. So I don't really care. If it sucks I send it back and get a refund. If I were a burger though... different story.

>>	Anonymous Thu Dec 26 13:08:13 2019 No.1740453 >>1740447 Did you buy it from an EU retailer or AliExpress?

>>	Anonymous Thu Dec 26 13:09:15 2019 No.1740454 >>1740453 EU retailer of course.

>>	Anonymous Thu Dec 26 14:16:12 2019 No.1740481 File: 69 KB, 562x530, Right . . ..jpg [View same] [iqdb] [saucenao] [google] >>1740400 >There is steady firmware updates that add features. Sweet, always buggy with retarded feature creeps implemented chink-style.

>>	Anonymous Thu Dec 26 14:20:13 2019 No.1740484 >>1740440 The story of my X5105 until I sold it to a boomer club member.

>>	Anonymous Thu Dec 26 15:00:42 2019 No.1740497 >>1740391 I never thought I could do it all. On the other hand I have 10+ years experience in embedded and DSP programming that I can contribute with.

Anonymous Thu Dec 26 15:26:50 2019 No.1740503
File: 1.06 MB, 3120x4160, IMG_20170325_220728.jpg [View same] [iqdb] [saucenao] [google]

>>1740484
>>1740481

Hi. No need to be jelly. I don't begrude you your privilege to pay double for less. If you feel like you get more out of paying double for less be my guest.

Again, not a problem in the EU. If it does not work I get a full refund.

Also say something nice about my UHF HT. Works with two 1.5 Alkaline cells for hours. 500mW.

>>	Anonymous Thu Dec 26 15:34:27 2019 No.1740505 File: 22 KB, 480x360, Hap.jpg [View same] [iqdb] [saucenao] [google] >>1740497 Clearly you're more level headed than previously thought. >>1740503 >No need to be jelly. (pic related)

Anonymous Thu Dec 26 15:59:28 2019 No.1740514

>>1740354
>Perhaps time to create the 4ch radio?
I will.
>Use a cell phone for gui and audio dsp to save cost and complexity.
Tempting idea but it'd suck needing to keep around a charged cellphone to use the radio. I'd rather spend 10 or 15 extra bucks and get an alphanumeric lcd, DSP, audio amp and small speaker.
>>1740228
I mean you're kinda right because error correcting methods could be applied to make PSK usable at a lower SNR than morse but by default it isn't suitable for weak signal comms.

>>	Anonymous Thu Dec 26 16:40:29 2019 No.1740535 >>1740505 >>No need to be jelly. >(pic related) ???

>>	Anonymous Thu Dec 26 17:08:18 2019 No.1740552 >>1740514 >10 or 15 extra bucks and get an alphanumeric lcd, DSP, audio amp What platform do you propose for those features?

>>	Anonymous Thu Dec 26 17:29:17 2019 No.1740569 >>1740552 STM32

>>	Anonymous Fri Dec 27 06:16:18 2019 No.1740809 >>1740238 the google cache still has 'The Radio FAQ' find it and save the file

>>	Anonymous Fri Dec 27 08:32:49 2019 No.1740834 >>1734900 sounds like something you buy only to show off >that wire, tho

>>	Anonymous Fri Dec 27 11:04:18 2019 No.1740871 >>1739808 Mil.spark-anon said he was able to burn through military grade jamming using CW using tight filters. Perhaps Olivia performs as well but CW evidently did the job under adverse QRM.

>>	Anonymous Fri Dec 27 15:48:09 2019 No.1741022 File: 80 KB, 616x547, 1.png [View same] [iqdb] [saucenao] [google] Alaska and Hawaii. Any recommended band/time combo to get this wrapped up?

>>	Anonymous Fri Dec 27 17:00:05 2019 No.1741076 File: 961 KB, 2280x1080, Screenshot_20191227-165832.jpg [View same] [iqdb] [saucenao] [google] Is this a tranny?

>>	Anonymous Fri Dec 27 17:09:54 2019 No.1741086 File: 861 KB, 474x360, Coffee.gif [View same] [iqdb] [saucenao] [google] >>1741076 God, I hope so.

Anonymous Fri Dec 27 17:22:51 2019 No.1741095
File: 614 KB, 1080x2280, Screenshot_20191227-171856.jpg [View same] [iqdb] [saucenao] [google]

>>1741086
I can kinda make out an Adams apple.
>New bolt on titties
>Man dominated interest
>Oddly shaped face
I can see boomers' heads exploding now.
>That meteorologist I try to beat to every week is a dude? Duh uhh um, hmm. I need to pray away this gay.

>>	Anonymous Fri Dec 27 18:18:23 2019 No.1741129 >>1741095 Boomer here. That's a horseface. Boomers never whack the meat at a horseface. Especially if it's a dude. Also, it takes a boomer to operate a vintage radio. Youngsters at most buy shit.

Anonymous Fri Dec 27 18:28:37 2019 No.1741140

>>1740063
I got a Stryker SR-94HPC 10 meter "export" radio for my truck. Should be fun to play with.
>>1740114
Olivia / Contestia commonly give better than -10 db under the noise floor with full text comms. FT8 and WSPR can supposedly give better than -25, but the software would need tweaked for actual comms use instead of the boomer contacts simulator it is now (See JS8Call). The reason this is possible is due to (relatively) precise timing, multiple layers of redundancy / error checking, and some complex DSP math to recover a signal in bad conditions.
It's not uncommon to be able to decode signals you can't actually see on the waterfall, or hear when using Olivia type modes.
>>1740871
Jamming isn't like in video games, think of it as a gradient instead of a cliff. "Burn through" is well documented in radar circles, and doing it with a mode like Olivia would mean you need less power to do so.

Anonymous Fri Dec 27 21:34:16 2019 No.1741213

>>1740514
QPSK does have some error correction if I’m not mistaken but nobody uses it. Olivia does too and I see some activity. To say PSK isn’t a weak signal mode is ridiculous though. PSK31 is at least as good if not a tad better than CW when it comes to weak signal communication. 25 watts is all I need to make it into South America and Europe most days.

Anonymous Fri Dec 27 22:11:21 2019 No.1741226

>>1741140
>PSK31 is at least as good if not a tad better than CW when it comes to weak signal communication.
It literally isn't though. Eb/N0 just tells you how much SNR you need to transmit at a certain data rate with a given % of errors. That it's more information theoretical efficient than CW doesn't do you any good if it tries to push too many symbols per second for the channel and you only get 1 out of 10 characters right, making the signal unintelligible, while CW is slow enough that the % of errors is low even with a worse Eb/N0. That's why you'd need to either modify the modulation to slow down the symbol rate (making it not PSK31 anymore) or add some kind of ECC on top of it, effectively diminishing the bit rate to get a decent error rate, in which case it could be made to be more adequate than CW for weak signal.
>and some complex DSP math to recover a signal in bad conditions.
There's no DSP math that can magically improve SNR, unless there's some predictable pattern to the noise that you can subtract from the signal (it generally doesn't and is just random). And you could apply those same methods to CW too. You might think you could take advantage of patterns in your signal to discriminate it from the noise, but you should model your information as random data, because after compression it effectively is going to be indistinguishable from random data. So that doesn't help you there with digital compared to CW.

>>	Anonymous Fri Dec 27 22:13:45 2019 No.1741227 >>1741213 >PSK31 is at least as good if not a tad better than CW when it comes to weak signal communication. Maybe your CW audio filter is not narrow enough.

>>	Anonymous Fri Dec 27 22:50:25 2019 No.1741246 >>1741226 That still means that PSK is superior to CW as a means of weak signal communication. >>1741227 500 Hz filter on my rig. How much narrower ya gotta go?

>>	Anonymous Fri Dec 27 22:57:36 2019 No.1741248 File: 1.12 MB, 1536x1536, 20191227_113205.jpg [View same] [iqdb] [saucenao] [google] Can I play?

>>	Anonymous Fri Dec 27 23:00:35 2019 No.1741252 >>1741248 An old RatShack CB? Nice.

>>	Anonymous Fri Dec 27 23:05:27 2019 No.1741254 >>1741248 lol /pol/ channel nein

>>	Anonymous Fri Dec 27 23:22:58 2019 No.1741257 >>1741246 300 Hz

Anonymous Sat Dec 28 03:26:12 2019 No.1741329

>>1741226
"Complex DSP math" is a purposeful simplification- I'm including things like foreward error checking, convolutional encoding, etc- things that while slowing bit rate and costing computational time, are well beyond the capability of the "human DSP" of a CW operator. Some of the techniques apply generally sure (If you've touched anything with a DSP or noise reduction button, you're using them) but others are going to be mode specific.
> You might think you could take advantage of patterns in your signal to discriminate it from the noise
This is partially how some of the newer digital modes work! Look up "Viterbi Algorithm" and "Turbo Codes". We don't care if part of the signal is lost in the noise, because of the enhanced recovery methods. Yeah this is at the cost of computing power, but we tend to have that in abundance.
>>1741248
I love CB. Just wish more people used it.

>>	Anonymous Sat Dec 28 04:52:31 2019 No.1741349 File: 72 KB, 639x225, senscw.png [View same] [iqdb] [saucenao] [google]

Anonymous Sat Dec 28 09:34:52 2019 No.1741419

>>1741246
>That still means that PSK is superior to CW as a means of weak signal communication.
I don't think so.
>500 Hz filter on my rig. How much narrower ya gotta go?
For a 15wpm signal I found about 50hz to be best, maybe you can go lower but the dits and dahs are going to lose definition. The faster the code, the wider the sidebands, and the wider your filter has to be.
>>1741329
Sure, but you can't pull the ECC codes out of your ass. You need the other party to send them, and they won't as they aren't part of the PSK31 spec.
>This is partially how some of the newer digital modes work!
Sure, but again, you need that redundancy to be there in the first place. Olivia does have them, which may or may not make it work to a lower SNR than CW.

Anonymous Sat Dec 28 10:03:56 2019 No.1741427

>>1741329
>I love CB. Just wish more people used it.
i want to love it, the openings are fun... but i cant get over the silly voices. im on the east coast and i hear people from all the way down south and all the way out west. i know theyre all running a bunch of power...its just the silly voices

>>	Anonymous Sat Dec 28 10:54:59 2019 No.1741444 >>1741257 The R-390A can go down to 100 Hz. https://www.r-390a.net/faq-overview.htm Morse code at extremely narrow bandwidths is like listening to whistling in a long corridor with lots of echo.

Anonymous Sat Dec 28 12:16:11 2019 No.1741463
File: 143 KB, 1050x1006, 20191228_181252.jpg [View same] [iqdb] [saucenao] [google]

Went and bought 6 PVC pipes with 10mm (1/3 inch) diameter. Each one 2m (6 feet) long. Also some metal parts to hold the pipes in a 90 degree angle. The two legs will be under tension by the green antenna cable. The PVC legs are black.

Will this work on 40/20/17/15/12/10 with a balun at the feed point, then 5m RG58 then into a tuner?

>>	Anonymous Sat Dec 28 12:17:56 2019 No.1741464 >>1741463 Guanella 1:1 Balun I mean. Or do I need a 1:4 Ruthroff plus 1:1 Guanella?

>>	Anonymous Sat Dec 28 15:06:44 2019 No.1741530 File: 53 KB, 853x493, 40m-delta-loop.jpg [View same] [iqdb] [saucenao] [google] >>1741463 Lowest resonance at about wire loop length --> 20m band.

>>	Anonymous Sat Dec 28 16:01:05 2019 No.1741562 Total noob, I just got a chink radio, now what?

>>	Anonymous Sat Dec 28 16:07:25 2019 No.1741570 >>1741427 https://invidio.us/watch?v=sR-B-5JO9fk Where did the nigger get the money to buy all that broadcast equipment?

>>	Anonymous Sat Dec 28 16:10:40 2019 No.1741573 >>1741562 Get licensed.

Anonymous Sat Dec 28 16:33:47 2019 No.1741582

>>1741419
> You need the other party to send them, and they won't as they aren't part of the PSK31 spec.
QPSK 31 uses two types of ECC coding, iirc. You touch on a wider issue though- user adoption. We have ok "Universal" programs like FLDIGI, but it's enough of a problem that someone came up with TX/RXID, so people would know what mode you were using. Part of why FT8 took off was the software was relatively simple to use, and you only needed one program and a sound card to make it work.
I'd like to make an IM/IRC style client for the ham bands, where you'd 'connect' to a frequency much like a chat room, but it's one project out of many on my list.
>>1741427
CB is the original 4chan. Local CB in my area is just a few guys shooting the poop, and a construction company that uses it for road work. They're pretty chill folks. There's also the people who sound like they've been smoking for 47 years, drunk truckers, and people running high power that talk over everyone. If you get closer to Latin America, you'll pick up on taxi cabs, drug cartels, and all kinds of traffic between 25-28mhz. Like here, you gotta sort out the good ones from the trash.

>>	Anonymous Sat Dec 28 17:07:57 2019 No.1741602 >>1741530 thats directional?

>>	Anonymous Sat Dec 28 17:11:36 2019 No.1741604 >>1741602 Technically yes but a proper Delta loop should have such a low angle of radiation that it's practically omnidirectional.

Anonymous Sat Dec 28 17:23:41 2019 No.1741612

>>1741582
Well, as you're probably aware there's js8call. But I think there should be more BBS kinda systems. If you're messages are semi-permanent you're more likely to be able to reach someone with the same interests as you than if you need to happen to be online at the same time as the other guy with your same interests. And then the access points could connect with each other and exchange messages like back in the day on Fidonet. Very few people are going to run dedicated stations so it'd be better if all stations running the software acted as relays by default.

>>	Anonymous Sat Dec 28 17:25:37 2019 No.1741613 File: 335 KB, 907x1612, 20191228_142223-907x1612.jpg [View same] [iqdb] [saucenao] [google] Don't you just love it when only 21" out of 38.5" of your antenna arrive?

>>	Anonymous Sat Dec 28 17:35:09 2019 No.1741617 >>1741604 how would this be better than a dipole? i have the space to set up a full loop as well (80), im just not sure its worth the effort.

Anonymous Sat Dec 28 18:08:38 2019 No.1741636

>>1741419
>I don’t think so

Doesn’t matter what you think. Facts are facts and CW, while a perfectly fine mode of communication for those who enjoy operating it, is inferior to certain digital modes like PSK31.

>>1741612
I lament the fact that I got licensed too late to partake in packet when it was more popular. There’s supposedly still some nodes in my area within range so one day I’ll have to give it a shot. Don’t forget about Winlink though. You can send and receive email over the air; even from unlicensed friends and family. Granted, it still relies on the internet to work. But you can be many miles from any internet coverage and still send and receive email. Which is still pretty cool to me.

Anonymous Sat Dec 28 20:57:27 2019 No.1741716

>>1741612
JS8Call needs some work imo; this is just me but the interface is a bit clunky; all of the active callsigns / qsos in the passband are just lumped together in the middle of the screen.
You should be able to easily send / receive messages to one person, a group of people, and send/receive small files, with it being obvious who the files are being sent too. Calling "CQ" should in effect show your presence in a chat room, with signal bars giving an at a glance indicator of how well you're receiving someone (and once contact is established, how well they hear you). Many of these features are already present in the FT8/JS8/etc. digital modes, but the software is lacking.
I'll probably work on this eventually, but like so many other projects, time isn't always there.
Data on HF is another issue, not helped by the FCC regulations specifying symbol rate, instead of bandwidth like literally every other country. The ARRL has been fighting to get this changed for years, and nearly succeeded; but some old boomer hams have been making arguments about open standards and losing their mind about "potentially" encrypted data on the bands.
>>1741636
Every hurricane season the FCC rubber stamps a waiver so people can use Winlink with Pactor IV. Winlink is OK, but just email over radio.

>>	Anonymous Sun Dec 29 09:01:44 2019 No.1741940 >>1741617 >i have the space Then go the whole hog and build yourself a Wullenweber.

>>	Anonymous Sun Dec 29 09:09:47 2019 No.1741944 >>1741636 >inferior By which standard? Ease of use? Probably System complexity? Hardly Getting through in adverse QRM? That is not clear.

>>	Anonymous Sun Dec 29 09:34:09 2019 No.1741952 File: 34 KB, 599x337, anonnymoose fedora.jpg [View same] [iqdb] [saucenao] [google] >>1741636 >facts are facts, clearly I've won this round and my smugness is obviously justifiable

>>	Anonymous Sun Dec 29 09:38:14 2019 No.1741956 Bump

>>	Anonymous Sun Dec 29 10:27:03 2019 No.1741979 >>1741940 too expensive

Anonymous Sun Dec 29 10:47:42 2019 No.1741987

>>1741979
You can save a lot if you only work on one band at a time as opposed to the entire HF band simultaneously.

>>1740569
>STM32
Looks good.
One of these for each antenna, say 16 in a circle, plus one DSP for beamforming/goniometer/DF and a 16 unit Wullenweber should be within reach. That should improve the signal and reduce noise significantly.

>>	Anonymous Sun Dec 29 11:34:01 2019 No.1742003 where do you guys go for antenna plans? looking to make a 6m antenna and have a few days off

>>	Anonymous Sun Dec 29 12:10:07 2019 No.1742008 File: 100 KB, 400x604, 6-m-Moxon.jpg [View same] [iqdb] [saucenao] [google] >>1742003

>>	Anonymous Sun Dec 29 12:58:29 2019 No.1742023 >>1741095 >I can see boomers' heads exploding now. Thankfully we have Jeri Ellsworth. She is cute and knows her stuff.

Anonymous Sun Dec 29 13:00:04 2019 No.1742024

>>1740569
I found these links that seem promising:
https://www.rtl-sdr.com/arm-radio-a-cheap-sdr-built-out-of-an-arm-processor-and-not-much-more/
http://armradio.weaksignals.com/

Downside is that the processing performance is not sufficient to handle baseband at full tilt.

>>	Anonymous Sun Dec 29 14:37:58 2019 No.1742076 >>1742024 Too much power consumption. A crystal filter is going to be cheaper and less taxing on the battery.

>>	Anonymous Sun Dec 29 16:16:56 2019 No.1742110 >>1742076 Could you draw up the circuit you have in mind?

>>	Anonymous Sun Dec 29 20:14:08 2019 No.1742194 File: 895 KB, 2280x1080, Screenshot_20191229-183957.jpg [View same] [iqdb] [saucenao] [google] >>1742003 I'd like to explore playing with a balun integrated boom or yagi, but I have nothing to offer

>>	Anonymous Sun Dec 29 20:33:30 2019 No.1742203 hi

>>	Anonymous Sun Dec 29 20:38:02 2019 No.1742204 >>1742023 She's a dyke, yet you incel fags still lust after her.

>>	Anonymous Mon Dec 30 00:54:04 2019 No.1742330 >>1742204 Frankly I'm more concerned about the fact that she's too old. If she was 21 then it'd be prime pussy.

>>	Anonymous Mon Dec 30 01:01:30 2019 No.1742333 >>1742110 Just your standard superhet SSB receiver with a DSP for audio filtering. For (CW) TX route the PLL LO to an amp chain.

>>	Anonymous Mon Dec 30 03:19:33 2019 No.1742358 >>1742204 >She

>>	Anonymous Mon Dec 30 03:20:55 2019 No.1742361 NEW THREAD >>1742360 >>1742360 >>1742360

Anonymous Mon Dec 30 03:52:39 2019 No.1742370

>>1741944
>Getting through in adverse QRM? That is not clear.
It's abundantly clear.
github.com/olgierd/ft8-vs-cw
Here are FT8 and CW signals at identical signal to noise ratios. CW is fading into the noise around -13 to -14, while FT8 works all the way down to -22.
Here is an older study from a 2013 QST:
qsl.net/k4fk/presentations/Mode-sensitivity-2013-Dec-QST-Siwiak-Pontius-1.pdf
Again, they find that PSK31 gives a nearly 2x effective range when compared to CW, and 12x when using JT65.
> System complexity? Hardly
You are trading off operator complexity for equipment complexity. System complexity I would argue is the same. Learning CW at even low speeds takes a significant amount of effort, and constant practice to keep sharp. You need trained operators to use CW, and it's not something that can be 'picked up' on the fly. Especially so if you're operating at 20+ WPM, while most neophytes can barely do 5. This isn't meant as a disparagement, CW has it's place; but it's far from being the king of weak signal modes in 2019/2020.

>>	Anonymous Mon Dec 30 04:20:19 2019 No.1742380 >>1742361 Fake thread Starts with disinformation You can still delete it

Anonymous Mon Dec 30 05:45:18 2019 No.1742396
File: 81 KB, 1537x937, Magnetic Loop Antena Test1.png [View same] [iqdb] [saucenao] [google]

Made my first magnetic loop for 15m. Got it down to sub 1:2 SWR, but I'm getting way over 50Ω, so I think I need to build a balun, but otherwise I'm pretty happy to just have something working. Maybe by the time the band is alive again I'll have it <1:1.5 and 50Ω.

Anonymous Mon Dec 30 05:48:45 2019 No.1742398
File: 404 KB, 907x1612, 20191230_024539-907x1612.jpg [View same] [iqdb] [saucenao] [google]

>>1742396
I also want to clean up the mounting points for the variable caps, and maybe trying to find a way to make the loop more round, but I'm not in a huge rush atm. This build was mostly a "proof of concept" attempt.
Sorry about the mess too, been working on a lot of projects and haven't cleaned up.

>>	Anonymous Mon Dec 30 08:01:51 2019 No.1742428 >>1742370 Any tips for getting my FT8 signal from only going state-side to going global? Vertical wire 30-50w fwiw

>>	Anonymous Mon Dec 30 09:27:37 2019 No.1742457 >>1742204 >She's a dyke Not proven and I don't care. > yet you incel fags still lust after her. Not for lewds. >>1742330 She is 45 - still cute. >>1742358 >She Yes.

>>	Anonymous Mon Dec 30 15:59:58 2019 No.1742614 >>1742457 >Not proven She has a fucking girlfriend >lewds kys, shit stain

>>	Anonymous Mon Dec 30 16:19:42 2019 No.1742623 >>1742614 >girlfriend Girls often have that, no big deal. Why so disturbed, anon?

Anonymous Mon Dec 30 17:09:43 2019 No.1742649

>>1742428
Band and time of day. VOACAP is a good tool start to get an idea of when openings will happen. This goes for
> https://www.voacap.com/hf/
Right now we're close to the solar cycle minimum, so band characteristics are going to be generally mediocre There are still plenty of DX openings if you hunt for them, but working DX on an old bed spring may not happen.
>>1742457
>>1742614
>>1742623
Lusting after 45 year olds is what the boomers do at Dayton. If you want to meet women and are under the age of 35, literally any other hobby.

>>	Anonymous Tue Dec 31 01:31:36 2019 No.1742904 New thread when?

>>	Anonymous Tue Dec 31 08:49:48 2019 No.1743007 >>1742904 We're still on page 5. It's reached its bump limit, but until we get to at least page 9 this thread should be fine.

>>	Anonymous Tue Dec 31 09:48:11 2019 No.1743021 too late

Anonymous Tue Dec 31 11:15:38 2019 No.1743076

>>1742649
>Lusting after 45 year olds is what the boomers do at Dayton.
That would be a 10 year age difference.
>If you want to meet women and are under the age of 35, literally any other hobby.
The FAQ links to a YouTube video with a 10 year old girl working various Morse keys. Too young for me. The point remains, you can find girls of all ages in this hobby. Also Jeri is fine.

>>	Anonymous Tue Dec 31 13:45:01 2019 No.1743123 >>1743076 Drink bleach

>>	Anonymous Tue Dec 31 14:32:58 2019 No.1743147 >>1743123 Why so bitter, anon?

>>	Anonymous Fri Jan 3 01:20:32 2020 No.1744692 We need a new thread help!

>>	Anonymous Fri Jan 3 01:31:34 2020 No.1744697 >>1744692 We already have one: >>1742360 Always check using >>>/diy/ham

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