Hi Dan...
I have had similar experiences, esp with recent PSDR release versions. I
think changes in the software have made my previous level sets obsolete.
I notice that other people have answered you, and I concur that you should
eliminate any chance of RFI, then use the Rob W1AEX's excellent flowchart
methods for audio setting. In particular note his recommendations to avoid
getting even close to 0dB on peaks....-5dB or even -10dB will still provide
plenty of output, yet will give you the headroom needed to avoid the ALC
kicking in.
Also pay attention to how you have your PSDR defaults set...that is, are you
saving the changes you make in transmit profiles, and how are your transmit
profiles saved (auto save vs manual save)?
After those homework assignments, if you still have audio grunge (I did),
contact me, I may have some other suggestions for you. I finally have my
system producing clean audio with adequate RF output, but it took a long
time getting back here. On earlier PSDR versions, it was not this critical,
but now the technique has changed.
GL es 73
Dan
K0DAN
-----Original Message-----
From: Dan Baker
Sent: February 20, 2013 11:05 PM
To: [email protected]
Subject: [Flexradio] Distortion on my signal.
Hello all,
I just recently bought a 3000 refurb unit. I am having trouble getting it
to sound clean.
I tried my Yaesu hand mic, a Electro Voice RE20, and my Headset. All with
the same result. The reports I get from my friends are a little
distortion on the peaks of my signal. That it just does not sound right. My
peaks can be at -25dbm and it is still present.
I set this up by setting the Mic gain at 35% adjusting the Mixer setting
until it was about -15db on the mic meter reading. Then
adjusting the EQ level. I have it running around -10 to -15 dbm on my
peaks. When I listen to the audio using the monitor in PSDR it sounds clean.
I can run 20 watts out of the radio or 700 watts out of my amp and it does
not change.
Anyone have any suggestions?
Best Regards, Dan KM6CQ
--
KM6CQ
Dan Baker
www.km6cq.com
@danielbaker
QSL via LoTW, eQSL, or Direct.
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