Deaf radio

A place to discuss all aspects of amateur radio operation.
Post Reply
User avatar
Agent 48
Radio Addict
Radio Addict
Posts: 748
Joined: 23 Jun 2024, 18:47
Has thanked: 6 times
Been thanked: 4 times

Deaf radio

Post by Agent 48 »

I have a couple of deaf radios in need of realignment. They were programmed to 2 meters but the receivers need adjusting for the frequency. I don't have the right test equipment to tune them up and I really don't want to spend hundreds on equipment that I'll rarely use.

I need to build something simple that gives a weak signal on 145MHz so that I can tune the receiver to the loudest sound.

What would be the best way to align the receiver?
User avatar
ch25
Top Poster
Top Poster
Posts: 1869
Joined: 03 Dec 2016, 11:07
Call Sign: Lemmy
Location: Poland
Has thanked: 7 times
Been thanked: 20 times

Re: Deaf radio

Post by ch25 »

Use another radio. TX to dummy load. Move it away to get desired signal level.
WE ARE MOTÖRHEAD, AND WE PLAY ROCK N' ROLL
You can't have too many antennas...
User avatar
Agent 48
Radio Addict
Radio Addict
Posts: 748
Joined: 23 Jun 2024, 18:47
Has thanked: 6 times
Been thanked: 4 times

Re: Deaf radio

Post by Agent 48 »

Cheers I'll do that. I never thought of that.
User avatar
DX-Digger
Top Poster
Top Poster
Posts: 1471
Joined: 27 Jul 2009, 22:01
Call Sign: TM205
Location: ... - --- -.- . --- -. - .-. . -. -
Has thanked: 41 times
Been thanked: 24 times

Re: Deaf radio

Post by DX-Digger »

friend of mine used to put a handheld on low power and a rubber band around the ptt and put it inside his fridge.
worked a treat.
ʎɐqǝ uo pɹɐoqʎǝʞ ɐ ʎnq ı ǝɯıʇ ʇsɐן ǝɥʇ sı sıɥʇ
Post Reply