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Re: [CQ-Contest] SO2R with Automatic Switching

To: cq-contest@contesting.com
Subject: Re: [CQ-Contest] SO2R with Automatic Switching
From: Barry <w2up@comcast.net>
Date: Tue, 26 Nov 2013 15:45:52 -0700
List-post: <cq-contest@contesting.com">mailto:cq-contest@contesting.com>
Been there, done that.

I used Top Ten band decoder boxes and antenna switches, Array Solutions NQN filters, and Acom 2000A amps. I used some old A/B/C boxes (picked up at a hamfest for a few bucks) with DB-25's on them to split the band data outputs. I removed the big switch from each box and rewired them for use with the antenna switchesm bandpass filters and stubs.

Barry W2UP

On 11/26/2013 14:06, Bob Shohet, KQ2M wrote:
Hi,

I am using two FT1000MP’s for SO2R and would like to use the band output from 
the radios to
automatically electronically switch all antennas, amps and filters every time I 
change bands rather
than the tiring/inefficient manual “switching by hand” that I have been using 
for the past 26 years.

I would appreciate hearing from SO2R ops what amps, antenna switches, “boxes” 
and /or
other devices that they use to accomplish this fully automatic switching which 
would be necessary
on both phone and cw.  Also, if there is a particular contest logging program 
that you have found
to be especially useful and well-integrated with all of this switching, please 
tell me as well.

Reliability and durability are of paramount importance to me as I do not want 
failures
occurring due to RF, cheap components and/or questionable or short-sighted 
design issues.

I would appreciate any thoughts and experiences with products, vendors and 
station design
either on or off the reflector.

Thanks in advance for your help.

73


Bob KQ2M

kq2m@kq2m.com
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