Good morning:
Comment about linear amplifiers, yes 40 db over signal is really too
much
however I use my amplifier when I am net control of nets, and also when I send
traffic to stations that are in high noise levels, or that have poor antenna
systems.
I use my amplifier about 5% of the time. Most communications on SSB is
done
with 25 watts SSB. We all know that you have to increase your signal strength
four
times to have one S unit increase at the receiver end.
I understand that the purpose of SSB was to minimize the bandwidth,
increase
efficiency, and pass only the necessary voice bandwidth for communications.
True transceivers do not usually have any problem with intermod distortion,
however
linear amplifiers are another matter, and some do not know how to heavy load
the amp
(i.e. over couple) to keep the amplifier linear.
Ed 73 K7DXV ewell2@cvc.net
|