[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.
73,
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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