>Was pleased to see an "Accessory" port on the back on my Icom 737. It works
>well with my TNC for packet, rtty, etc. Unfortunately, the microphone audio
>is distorted (quite badly, I'm told) when a cable remains connected to this
>port. I've tried the Radio Shack chokes which separate in to two C-shaped
>sections. No luck. Audio is still so bad I just unplug the cable. Any
>suggestions?
>
>Kelly Boswell
>KA5MGL
>kboswell@aetn.org
I had a similar "microphone audio distortion" when my PK-232 was connected to
the accessory jack of my ICOM IC-735. I installed a toggle switch on the
radio-tnc
cable, and switched the TX audio and PTT lines. By all reports,
disconnecting the TX
audio has eliminated the microphone distortion. I suspect a problem with
loading
the output of the microphone preamp, but I don't know. I won't argue with
success.
I'll just suggest that your problem *might not* be RFI-related.
73, Chris Tobias
KD3OA
kd3oa@ptd.net
--
Submissions: rfi@contesting.com
Administrative requests: rfi-REQUEST@contesting.com
WWW: http://www.contesting.com/rfi-faq.html
Questions: owner-rfi@contesting.com
|