[amsat-bb] Re: Question on your old Landwehr amps
Vince Fiscus, KB7ADL
vlfiscus at mcn.net
Wed Apr 11 14:59:41 PDT 2012
At 09:47 PM 4/10/2012 -0400, mryan301 at comcast.net wrote:
>I ran across an old posting of yours below.
>I have the same problem (cost me a lot of ladder work before I figured out
>that it was the 2M amp causing my desense or âhashâ). Did you ever
>find a workaround that let you use the 2M amp in line?
No I haven't solved my desense issue, but it really isn't an issue for me
on the LEO satellites. It was more a pain when we had Phase III birds as
their downlink signals were a lot weaker. Others with mode J desense
issues have tried putting a duplexer between the antenna and preamp and had
success removing the desense. You might try that.
I'm also including this to the Amsat-BB list because there might be others
with some idea's you can explore.
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