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Re: [TowerTalk] Budget 4-Pack?

To: "Tower and HF antenna construction topics." <>
Subject: Re: [TowerTalk] Budget 4-Pack?
From: "Larry Banks" <>
Reply-to: "Tower and HF antenna construction topics." <>
Date: Tue, 2 Mar 2010 13:00:19 -0500
List-post: <">>
Hi Barry,

If you only need one transmitter at a time, and if the switch will be in the 
shack, you could use the MFJ 1700C:

73 -- Larry -- W1DYJ

----- Original Message ----- 
From: "Barry Fox" <>
To: <>
Sent: Monday, March 01, 2010 2:40 PM
Subject: [TowerTalk] Budget 4-Pack?

>I have two HF radios and 4 different HF antennas.  I would like to use
> each rig on any antenna, while obviously locking out that antenna for
> the other rig.  The commercial products 6-Pack, 8-Pack, etc are way
> over my budget.  Anyone have a schematic for a "4-Pack" or similar
> device they would like to share?  Obviously relays are the way to
> go, and I can get the RF relay switching part of it on paper but
> not the lockout logic.  Some sort of electro-mechanical exclusive-OR
> gate array / diode matrix?  Anyone been there and done that?
> TNX / 73,
> Barry - W1HFN
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