Ok. To attenuate spurs at an acceptable level we might add a high pass filter for the 10m band. However for the 15 and 12m band I don't see an easy solution
Il 05/giu/2018 06:19, "Tim Gorman" <
tgorman2@...> ha scritto:
Arv,
This is how I've always operated my linear amplifiers. Tune for max in
CW and then mark that level on the oscilloscope. When in SSB never go
above that level with your modulation. It's a pretty conservative way
to operate but it's also the easiest. You don't have to worry about
trying to read a trapezoid display for linearity!
tim ab0wr
On Mon, 4 Jun 2018 15:20:24 -0600
"Arv Evans" <arvid.evans@...> wrote:
>As long as the microphone port audio input is below 45
> millivolts the spurs seem
> to be down at least 50db, but can be pushed even further down by
> reducing the audio
> level to around 32 millivolts.? This seems to be where oscilloscope
> peak-to-peak RF level
> is about the same as when using CW mode.
