*Have you tried making a serious RF Gain reduction to the receiver you are
monitoring with? What about On the Air Reports? I had a similar problem
many years back. My receiver being used to monitor with, was so severely
overloaded that we thought there was a problem ... when none existed. After
telling some friends on the radio about this problem, My neighbor 3 blocks
away found me and had a listen ( We have been known to hold a QSO by both
being on our Dummy Loads. ) He called me on 2 meters to let me know that
everything sounded Fine Business in his shack. Well .... just a thought.
It's hard to stop all the RF from getting out of an old Heathkit Cantenna I
guess. I was listening through my Coax Switch into the Dummy Load. The test
receiver was just badly overloaded. *
* 73 from Wade/KJ4WS*
On Sat, Apr 4, 2015 at 12:41 AM, Bill Acito <w1pa@hotmail.com> wrote:
>
> My restoration project continues...
> My project 540 has great receive audio, but very distorted transmit audio,
> as if it was being overdriven. Power out into a dummy loadlooks good, but
> on another receiver I can hear the audio peaks of myvoice but the audio
> itself sounds like hash, severely distorted -- like modulated static.I find
> that if I move the mic away from my mouth 12-18 inches andspeak low the
> audio sounds acceptable on the other receiver.
> I have tried a 700 hand mic and a high z Turner 350C with no difference.
> What boards should I be looking at? the SSB generator? Finals?
> Bill W1PA
>
>
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