These are what I am using: http://www.k1ttt.net/2006towerwork5.html
I use them to drive rcs-8v relay boxes. Gives you 8 diode programmable
pushbutton selections, interlockable with ptt.
David Robbins K1TTT
e-mail: mailto:k1ttt@arrl.net
web: http://www.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net
> -----Original Message-----
> From: George Fremin III [mailto:geoiii@kkn.net]
> Sent: Wednesday, June 04, 2008 14:49
> To: CQ Contest
> Subject: [CQ-Contest] Stack Switching
>
>
> Fellow contesters,
>
> I would like to add a bit more flexibility to my antenna switching
> systems and I was wondering how others are solving this problem.
>
>
> The example I will give you is my 10 meter tower.
>
> Four antennas.
>
> - 6 ele OWA that rotates
> - 6 ele OWA fixed to the northeast
> - 4 ele Cushcraft fixed to the southeast
> - 3 ele Mosely fixed to the west
>
> Currently I have an Ameritron RCS-8 five position remote switch and I
> can select the following choices.
>
> 1 - Top rotating 6 ele
> 2 - Both of the OWA antennas in phase with phasing lines
> 3 - Lower 6 ele fixed northeast
> 4 - 4 ele southeast
> 5 - 3 ele west
>
> I would like to be able to do a few more combinations of antennas.
>
> The stack NE and the SE antenna for example.
>
> It would be really nice if I could use the existing relay or
> something that I already have since my budget is limited.
>
> I also have some six position relay switches.
>
> I have seen the N4ZR (I think) descriptions of how to use switches
> like I have to do any or almost any combination of 3 and/or 4
> antennas. While I do not think I need nor want to be be able to choose
> every combination of the 4 antennas - I would like to be able to
> have more choices that I have currently
>
> The thing that trips me up when thinking about this is how manage the
> control. If anyone is using this system - how are you controlling the
> switching?
>
>
>
> --
> George Fremin III - K5TR
> geoiii@kkn.net
> http://www.kkn.net/~k5tr
>
>
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