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[TowerTalk] Protecting RX in SO2R

To: <towertalk@contesting.com>
Subject: [TowerTalk] Protecting RX in SO2R
From: k6ll@juno.com (David O Hachadorian)
Date: Tue, 6 Nov 2001 13:55:57 +0000
In the 1996 WRTC, N2IC and I used a 250 ma fast-acting fuse from
Radio Shack, with stubs, but no BPF's. The fuse was on the antenna
side of the stubs and never blew.

Dave Hachadorian, K6LL
Yuma, AZ
K6LL@juno.com


On Tue, 06 Nov 2001 15:40:26 -0500 Pete Smith <n4zr@contesting.com>
writes:
> 
> I don't know if this fits in Towertalk, but don't see any other 
> likely forum.
> 
> I'm contemplating a fairly minimal SO2R arrangement, relying on 
> antenna
> separation rather than stubs or bandpass filters.  To avoid an 
> expensive
> mistake through putting too much RF into one or the other receiver, 
> I'm
> thinking about building up some little RX protector boxes that would 
> put a
> small incandescent bulb in series with each transceiver's antenna on 
> RX,
> and bypass it on transmit.  It's easy to control such a device from 
> my SO2R
> box, but I'm whether this would be adequate protection, and if so,
> wondering what size bulb would be appropriate.  Any guidance?
> 
> 73, Pete N4ZR
> 
> 
> 
> 
> 
> 
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> 
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List Sponsored by AN Wireless:  AN Wireless handles Rohn tower systems,
Trylon Titan towers, coax, hardline and more. Also check out our self
supporting towers up to 100 feet for under $1500!!  http://www.anwireless.com

-----
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