Hi,
Have an Omni V & a Titan 425. Key down I have no problem adjusting
the output through the 425. I can adjust from minimum to maximum
output and the amp gives a steady output.
When I run CW I have issues; on 40 & 80 there is no problem and If I
want a steady 300 watts via a string of dits, no problem. When I go
to 20 meters the first dit has a high output but then the output
folds back to zero and if I increase the RF power from the Omni V to
around 50 W, it starts putting out an intermittent amplified signal.
Increase to 70W and it becomes a steady output at expected levels.
15 meters is somewhat the same as 20 meters but is easier to run a
lower amplified signal Ie: I can drive with as little as 25W out
reliably with the keyer and get a normal output. Drive with 20 watts
and there's a foldback of some kind happening.
Thought it might be RF getting into the wiring so I ran the amp
directly into the dummy load and the problem is the same; no change.
Again, if I use the tune feature on the Omni it is steady as a rock
as regards output, it's only when keying CW.
Ideas?
Thanks
Gary
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|