[TenTec] Triton IV with digital modes

[Louis Ciotti (KC2RVD)]

I have been using my Triton IV with PSK31 and RTTY over the past few weeks,
and occasionally something odd happens.

 

I tun up the radio/antenna for about 1:1 using the lock position.  When I go
to transmit using rtty/psk31 I will get a very high SWR reading on the
Triton meter, and I get a weird buzzing noise coming from the 262G power
supply.  I think the rig may be going into oscillation, but have no way to
verify this.  Anyone else experience this??  I have been able to make some
digital contact with good signal reports, but it this is with the drive
turned way down.