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/diy/ - Do It Yourself

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1150189 No.1150189 [Reply] [Original]

Basically, I went to the dump and picked up this lovely old TV, a Binatone Starvision 12" from 1978.

Since the government sold all the UHF wavelengths to the phone companies, I had the idea of making some device that would take the digital free-view channels coming from my satellite, convert them to various analogue signals, and send them to the television through the input in the pic.

Now I don't know if this is possible, but what would be cool is if I could construct a device that would transmit multiple channels to the television simultaneously so that I could use the dial to tune into them instead of changing channels digitally.

Would appreciate any advice, speculations, abuse, and wisdom that you guys/gals can give.

>> No.1150190
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1150190

- satellite dish that is...

>> No.1150191
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1150191

>> No.1150200

>>1150189

I have no idea if this is possible and no information to help you, but shit man, that's an interesting idea.

>> No.1150210

>>1150189
What you are looking for is a UHF modulator - video in, UHF out - CCTV Cos and people still sell them. eBay, etc. Alternatively, find an old VHS video recorder with a video in - they output UHF on a specific channel, if it has a 'test' switch, that will output black bars, hunt for them via TV tuner.

Your problem with all of this, you (usually) only gonna get composite video in - you want HDMI or some shit, you gonna have to convert that signal somehow as well.

>> No.1150255

If you want to covert multiple channels you will need multiple receivers and multiple RF modulators. Better to just covert one in your case and change the input to it. +1 for old VCR.

>> No.1150316

>>1150210
we know them as RF modulator.
sometimes you find things like this in a hotel
http://www.ebay.co.uk/itm/CABLE-TV-HEADEND-CATV-HOTEL-SATELLITE-QPSK-IN-PAL-MODULATOR-OUT-16-CH-/112331772698?hash=item1a277ed31a:m:mtkr4esT_K5Ogtj2duEFXEQ
its a big box with lots of modulators in them, pretty much what you are talking about i think. say you want satellite in x number of rooms of your hotel, if you have more rooms than channels then its cheaper to buy as many satellite boxes/subscriptions as channels you want to provide rather than a box for each room then modulate them onto their own channel and split the signal to all the rooms so they can tune into the boxes. you get me? shitty explanation i know but i guess you know what i mean because i think its what you want.