Here's a possibility: RFI.
Wrap your (all!) USB wires through some 2" diameter mix 31 ferrite cores. 7
or 8 turns will do fine. Don't run the codecs over a hub.
Turn off all USB power savings as well.
73 Tom
-----Original Message-----
From: Mike Greenway
Sent: Monday, October 1, 2018 11:49 AM
To: [email protected]
Subject: [Elecraft] CODEC
I have used for years a K3 on EME with WSJT using Line In/Out audio.
Recently got a K3S and I am now using USB (CODEC) audio in and out of the
radio. In WSJT-10 they have Rate In/Rate Out monitors that should normally
run at 1.000. Using the K3 analog audio these always stayed right on 1.000
but now that I am using the USB audio they are jumping around quite often
and getting out of range indicated in WSJT with a red marker. I have tried
two different computers and the same result. I tried changing the sample
rate in the computer audio settings but no change in the problem. I plan to
go back to analog Line In/Out on the K3S unless someone has an idea on how
to settle down the Rate In/Out fluctuations. I have not found anything in
the K3S that might affect this. You can reply off line if you like. 73
Mike K4PI
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