Might be a bit 'blunt', excuse me for
that, but IMHO ALC-feedback
from an Amp into an Exciter/TRX is just about the very last thing
I would consider to make an TRX/Amp combination 'work'.
It's a backward feedback loop with all
kinds of implications
I'd rather set the DUOs RF output level
such that the Final Amplifier
is running within it's desired linear amplification range/IMD
You do not need a high-spec SDR for checking the quality of your
transmitted signal. A simple RTL-stick will do, as long as you'll
it's RF input level (monitoring your TRX signal) within the units
You'll then literally 'see' (waterfall)
any changes of TRX drive power
into the Amp and what this does to the quality of your transmitted
I have done this kind of 'exercise' on
the air with quite a couple of
my local club mates and they all were quite surprised in the end
about what they've sent-out before and after this exercise.
'After' = a non-offensive RF signal transmitted w/o losing any
signal strength at the receivers side.
Am 04.11.2019 um 17:59 schrieb Tony
Thanks for that Iain.
Not really the answer I had hoped for ;-)
What I wanted was an ALC connection to run/control a non-Elad
I thought that was a non runner though, so not unexpected.
Regards & 73
On 04/11/2019 16:50, MM6IXE wrote:
you are correct on both accounts, No alc meter, and yes u would
need to adjust windows drive .
I asked the same question couple weeks ago, and was given a
workaround for wsjtx,
if u go back a few pages on forum, you will find the question
andbthe answer from Neil