Build an audible VHF/UHF handheld transmitter tester in 10 minutes

Nice and simple to understand .

A cool very low budget project. Thanks for sharing

Good idea peter make this in HF also in the next video .thanks for you yi1hxh.

Simple solution to TX testing, nicely done Peter.

those germanium diodes...thanks my friend.......excellent for to test some FM DiY transmitters.....

Cool idea .. how can i increase the range .

Loved the video right up to the comment about the fox hunt. I do not condone senseless killing of animals for sport. As the supposedly most intelligent species on this planet it is paramount we protect all other life forms. Failure to do so will ultimately result in our own demise.

It will be good as a "Sniffer"! Good Video and Instructions! THANK YOU !!!

I suppose you could replace the buzzer with a sensitive meter and use it to check the efficiency of antennas. Perhaps use an old "active" set top antenna (i.e. with a built-in RF amp" and with telescopic elements. Very nice, thank you!

Pretty cool!

In my case it only works with 2 germanium diodes in series with one wire wire antena attached in the middle and second one on the positive side (correct me if i am wrong but currents add in this case I think). Maybe because of my low power transmitter (it was built for my toys and also I can't increase the power for obvious reasons). So probably your radio has like 10 times more power than my transmitter. Anyway I had to adapt my circuit to squeeze that current into the buzzer somehow ;)