[TenTec] Omni 6+ audio distortion trouble question

[Jerald Volpe]

On 20-meter PSK earlier today I received a report of unusual distortion 
on my signal. Sure enough I looked at my signal on a separate receiver 
using Digipan and one half of the audio signal was broken up with 
distortion. It appeared as perpendicular spikes extending from the true 
lower PSK frequency tone to up to 20 or more hz below. Switching to LSB 
moved the distortion to the opposite tone. Testing to a dummy load did 
not change this. Replacing the PSK audio signal with a tone from my 
monitor scope's two-tone audio output brought the same distortion on the 
single tone. Changing bands cleared the problem up but returning to 
20-meters again brought it back. I could not create the problem on any 
other band. I ran the audio in both the audio in jacks and the mic 
connector with the same results. I ran the audio into my Omni-C and 
20-meters was fine (exact same hookup). No matter of simplification 
changed the distortion. So after a bit I decided on trying one more 
possibility... I turned the transceiver off and then on again and the 
problem disappeared.

Anyone else seen this type of behavior before? I know this is abnormal 
so please, no Omni-6+ bashing. I sent off an email to Ten-Tec service 
already (before I hit the off/on switch of course) nevertheless thought 
this was interesting enough of a problem to share with the all.

Jerald, KG6TT