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

[Paul]

Hello Jim,

Do you still use the GulfAlpha 'Easy Sat' antenna?
I'm looking for any advice on improving performance.
I have already installed the diplexer as shown in the article below but it
seems I'm getting no good signal on the 70cm uplink.

Paul Delaney - K6HR
http://k6hr.dyndns.org:8080
 
 
-----Original Message-----
From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] On
Behalf Of Jim Jerzycke
Sent: Sunday, January 19, 2014 11:09 AM
To: amsat-bb at amsat.org
Subject: [amsat-bb] Re: 145 MHz signal blocking 435 MHz downlink

Buy a diplexer, and connect it as shown in the linked article:


http://www.amsat.org/amsat-new/articles/Mode-J/

I also tilt both of my Yagis so they're 45* to the boom, which makes 
them 90* to each other.

Yes, I lose some signal on terrestrial use, but ti helped cut the 
coupling, and desense, down quite a bit.

73, Jim  KQ6EA

On 01/19/2014 06:56 PM, Gabriel - EA6VQ wrote:
> 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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