[Top] [All Lists]

Re: [TowerTalk] Budget 4-Pack?

To: "Tower and HF antenna construction topics." <>
Subject: Re: [TowerTalk] Budget 4-Pack?
From: Stan Stockton <>
Reply-to: "Tower and HF antenna construction topics." <>
Date: Tue, 2 Mar 2010 12:08:54 -0600
List-post: <">>

Two DPDT relays for each antenna - one for each rig.  Activating a  
relay by Rig A with one set of contacts disables the other rig from  
being able to activate the same relay for the same antenna and vica  
versa.  If you are also wanting to prevent the other rig from  
transmitting at all that is another box to build.  Let me know if this  
is enough info.  If not I'll draw it.

Stan, K5GO

Sent from Stan's IPhone

On Mar 1, 2010, at 1:40 PM, "Barry Fox" <> wrote:

> 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
> _______________________________________________
> _______________________________________________
> TowerTalk mailing list

TowerTalk mailing list

<Prev in Thread] Current Thread [Next in Thread>