/diy/ - Do It Yourself

>>1872281
I have to recover what I learned in my license course: 20dB-5db=15dB, right.
10dB is a power factor of 10 and 5dB is a power factor of about 3.2.
So the 20dB antenna radiates about 32 times the power of the 5dB antenna.
Now the range factor (same field strength at the receiver) is the square root of the power factor which is between 5 and 6. Or so I think.