[amsat-bb] Another interesting pre-amp story

["Vince Fiscus, KB7ADL" <vlfiscus@xxxxxxx>]

I used to have terrible mode J desense.  One day I decided to see if I 
could solve the problem.   I had the problem whether the 70cm pre-amp was 
in-line or removed.  I then removed the 2 meter pre-amp and the problem 
went away.  My pre-amps are Landwehrs.  Funny, it was the 2 meter one that 
was leaking the RF and noise.  I don't use a pre-amp on two meters now, but 
if we get a Mode B HEO, I may need you figure out what to do.  Maybe a 
different two meter pre-amp will solve the problem.  I was surprised the 
two meter was what was causing the problems.

KB7ADL
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