[Elecraft] Strange behavior on K3 system when transmitting

[Jerry]

Hello,

 

I am using my K3, KAT500 and KPA500 in an MARS environment and I am having
this problem. We use the M110A data mode to transfer messages between
stations  - sort of like FLdigi only the mode is not legal on amateur
frequencies. 

 

When I use the M110A (Signalink is the interface and USB) I have noticed
that the output in the KAT500 slowly builds up as the transmission
continues. It is really noticeable when I have the amp engaged. The power
output seems to start at some low level (no lights) to full output in about
five seconds of continuous transmitting (SSB). I originally suspected that
it might have something to do with the KAT500 functionality , but I don't
think so now because the condition existed even when I put the tuner into
bypass.

 

Any ideas?

 

Jerry, W1IE