In spite of everything we've learned over the years, the Preamp on the K3
actually helps when it's not needed. For example: I just worked a station
on 160m. The QRN is peaking 20 - 40db over 9. His signal averaged S7 to S9.
Normally under these conditions you would certainly not want to use a preamp
however when I engage the preamp, the CW actually rises above the noise
level and is much easier to copy. I've done this a dozen times. I also use a
more narrow filter and the NR helps a lot also but that preamp helps more
than anything. It's strange why the extra, unneeded gain would help but for
some reason it does. I think the NR actually responds better when there's
more noise! whatever....I'm happy.
Steve Ellington
[hidden email]
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