[amsat-bb] Re: 145 MHz signal blocking 435 MHz downlink

Andrew Glasbrenner glasbrenner at mindspring.com
Sun Jan 19 11:07:25 PST 2014

>From the old AMSAT website...maybe I'll move it to the new one today:


73, Drew KO4MA

-----Original Message-----
>From: Gabriel - EA6VQ <ea6vq at dxmaps.com>
>Sent: Jan 19, 2014 1:56 PM
>To: AMSAT-BB at amsat.org
>Subject: [amsat-bb] 145 MHz signal blocking 435 MHz downlink
>Hi all,
>I have a coupling problem in my station when trying to work FO-29.  My 2m
>signal is completely blocking the 435 MHz downlink, and so I can't hear my
>signal off the satellite. I guess it must be something related to the
>distance between the two yagis. (I use the terrestrial horizontal yagis you
>can see at http://www.dxmaps.com/jm19hn.html ). With mode-B satellites there
>is no problem.  I have tried it with two different 435 receivers, and it's
>exactly the same.
>Anyone has had this problem o have an idea of the possible reason?  And what
>is more important, of some way to solve it?
>Thanks for any possible help.
>73. Gabriel - EA6VQ
>Web-Site: HTTP://www.dxmaps.com
>VQLog 3.1 (build 78): HTTP://www.vqlog.com
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