[SOC] Need help with a PSK-31 Problem

[Rob Matherly]

Was in QSO last night when I was informed that I was putting out audio
harmonics every 1.5kHz.  The guy on the other end informed me that it may be
caused by an impedance mismatch.  I thought this may be likely as I'm just
running 50 ohm coax with the appropriate connectors on each end from the
sound card to the Kenwood.  No impedance matching transformer, etc.

When I flip to the moni position on the Kenwood, I do hear a slight bit of
hum on occasion, but I've been told that it doesn't come through the
transmitt.

Anyone got any clues as to how I can solve this?

Also, does anyone know of an ACTIVE psk-31 e-mail reflector that I can get
on?

TIA

--
72/73/oo - Rob, w0jrm - w0jrm@arrl.net - ex-kc0bom - oink d'oink
ARRL, FPQRP -330, SOC #497, QRPp-I #19, IAQRP #143, ARS #1143, WATPK #1
Rigs: KWD TS-820; Drake TR-3; MFJ 9040
http://www.qsl.net/w0jrm