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

Jeff Yanko wb3jfs at cox.net
Sat Sep 26 03:08:29 PDT 2009

Yes, it is larger than the OEM supplied by Arrow, however, the loss is 
considerably less.  I'll trade that any day! :)  I connected it directly to 
the radio's input using a double male adaptor, male N connector to male 
PL-259.  No coax between the radio and diplexer.


Jeff  WB3JFS

----- Original Message ----- 
From: "James Duffey" <jamesduffey at comcast.net>
To: "Bruce Robertson" <ve9qrp at gmail.com>
Cc: "James Duffey" <jamesduffey at comcast.net>; "Jeff Yanko" <wb3jfs at cox.net>; 
"AMSAT-BB" <amsat-bb at amsat.org>
Sent: Friday, September 25, 2009 8:20 AM
Subject: Re: [amsat-bb] Re: Arrow antenna reconfiguration results - UPDATE

> 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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