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Re: [TowerTalk] HP8761A

Subject: Re: [TowerTalk] HP8761A
From: Kevin Normoyle <knormoyle@surfnetusa.com>
Date: Tue, 26 May 2009 10:51:47 -0700
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
John W5NNH wrote 
> Okay, then it looks like I'll be going with the Tohtsu CZX-3500.  I can 
> mount that in a case reasonably easy and feed it with 12 vdc through the 
> rotator cable.



at $110 for a single Tohtsu 3500, is that really a cost saving for this 
kind of outdoor switching?

Just did a quick look, because my remembering of this is that most 
people who try to do a cheaper homebrew come to appreciate the different 
issues in making something that works well?

comparison:

ICE has (thru array solutions)
http://www.iceradioproducts.com/rfswitch.html#3
which claims:
"standard rating 7,500 Watts PEP / ICS, insulation rating of poles and 
relay armatures 2000VAC, switching time 11ms., usable up to 500 feet 
from feed voltage source, 50 / 75 ohms, 0.1 db insertion loss, DC-30 MHz

... each switching unit contains a resistive heating element which may 
be switched on and off from the control source or left on 24 hours per 
day (total cost about 5-7cents per year), keeping the relays and chassis 
housing warm and dry -- even in harsh environments. All models rated for 
indoor / outdoor service"

2:1 for $58 or $62
6:1 for $208
9:1 for $228
$30 for a second pvc case for secondary protection of the connectors etc.

reviews here
http://www.eham.net/reviews/detail/3948

-kevin
ke6rad

John Kemker wrote:

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