[amsat-bb] 1.2/430 duplexer

[Patrick STODDARD (WD9EWK/VA7EWK)]

Bob,

I have used a Diamond MX-37 diplexer with an Alinco DJ-G7T
for AO-92 L/V. One port to an antenna for 1.2 GHz, and the
other port to a 2m antenna. I have done this with a 10-element
1.2 GHz Yagi I ordered from eBay, and the Elk 2m/70cm log
periodic I normally use for satellite work. I strap the 1.2 GHz
Yagi under the Elk's handle. This makes a two-antenna setup
that is a little bulky and heavy, but workable for the 8- to
10-minute AO-92 passes. Some photos can be seen at:

https://www.dropbox.com/sh/v3byggtuqw33fkk/AAAi79YIT9HzODGUfKU5nFNha/DJ-G7T/20190303-AO92_Fox1D-DM43-LV_mode?dl=0&lst=


If that link gets mangled, go to http://dropbox.wd9ewk.net/ and
go into the "DJ-G7T" folder. Then go into the subfolder with
the name starting with 20190303.

The DJ-G7T can work AO-92 L/V full-duplex, but the receiver
isn't as good as other radios. Mine is susceptible to
intermod if I am near other sources of RF - something that
isn't unique to AO-92 L/V. I prefer working AO-92 L/V using
two radios, where I only use the DJ-G7T to transmit.

Good luck, and 73!




Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
Twitter: @WD9EWK or http://twitter com/WD9EWK



On Friday, February 28, 2020, Bob Cutter via AMSAT-BB <amsat-bb at amsat.org>
wrote:

> Anyone using one with Alinco handi?
> 72, Bob KI0G
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