[amsat-bb] Re: Arrow antenna reconfiguration results - UPDATE

James Duffey jamesduffey at comcast.net
Fri Sep 25 08:20:14 PDT 2009

On Sep 25, 2009, at 7:53 AM, Bruce Robertson wrote:

> 2. If I'm correct, your replacement duplexer is rather larger than the
> one it is replacing. It would be a great topic for a Journal article
> if someone with the necessary equipment and expertise were to design a
> replacement with less loss.

There is a diplexer that is easy to make and has good performance in  
this article:

< http://www.wa5vjb.com/references/Cheap%20Antennas-LEOs.pdf >

As a bonus you get details on how to build your own handheld antenna  
for LEO Satellites. - Duffey

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