Anon doing the sounds…..
Found the tone 144 MHz at 4 sec intervals …. sounded like a continuing wave….
Thanks I’ll try it and upload the results
>http://onlinetonegenerator.com/
132 MHz on that one site, but can’t make it do 4 sec intervals… it made a warping noise, mind you I only have 1/4 hearing left ear and zero hearing right ear