[amsat-bb] Re: RF Quiet my digital recorder

Stan, W1LE stanw1le at verizon.net
Fri Apr 15 15:32:38 PDT 2011

Hello Bill,

What does the manufacturer say ?

Maybe it is a defective unit. Replace.

Does it have a built in microphone ?  Use the internal mic.

hardwire the transceiver RX channel to the audio input, with a suitable 
shielded cable.

Stan, W1LE      Cape Cod

On 4/15/2011 5:19 PM, Bill W1PA wrote:
> I am using an Olympus digital audio recorder for logging LEO passes,
> because I can directly transfer a .wma to my PC from it (versus the
> tape recorder I used in the 90's).
> I am using an extension clip-on mic. I am finding that it generates a lot of
> RF crud on 435, enough to swamp the RX if I am not careful.
> Beside a torroid on the mic cable, and maybe a foil/mesh cover over the
> recorder
> (maybe one of those new-fangled RF-ID protecting wallets),
> anything else I should try?
> Bill W1PA
> _______________________________________________
> Sent via AMSAT-BB at amsat.org. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb

More information about the AMSAT-BB mailing list