At 17:52 7/19/2014, [email protected] wrote:
Power down to about one watt after rebooting the computer and
restarting PSDR. Power down the radio too. If the problem is
reduced or eliminated, you have RF getting into the computer.
Well, George sent me to the solution. I had forgot about trying MON,
so I went and turned on MON and the output was seriously
garbled. Reduced power to 5w, dramatically improved. Returned to
65w, garbled again. I stared and stared at the screen, then I
noticed that TNF (tunable notch filter) was on. I turned it off and
all was well. I turned it back on and all was still well. So it
looks like a PSDR bug where PSDR got itself confused somehow and
cycling TNF "fixed" it. I hate bugs like that. Especially when
they are hard to provoke and have awful consequences.
if this is the case,put ferrite cores on all cables...both ends
. Make sure you have a good ground.
--------- Original Message ---------
Subject: [Flexradio] Garbled output
From: "Dave Gomberg" <[email protected]>
Date: 7/19/14 5:00 pm
To: [email protected]
Running F3K with 2.7.2 PSDR, haven't intentionally changed anything.
This AM receive was fine, but XMIT was screwed. Seriously garbled,
and power out on SSB did not track the voice level. The power decay
was very slow. A friend said he thought it might be rf getting into
the mic leads, but I re seated them, no help. And I did a cold boot
of the PC. Also no help.
Any suggestions? What next??
--
Dave Gomberg, San Francisco NE5EE Programming since 1961
All addresses, phones, etc. at http://www.sfwcf.com/ham/info.html
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--
Dave Gomberg, San Francisco NE5EE Programming since 1961
All addresses, phones, etc. at http://www.sfwcf.com/ham/info.html
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