[TowerTalk] Antenna switch matrices

[Don Havlicek]

Eric,
I custom design and build just such devices.  Most use 26v dc relays and 
rotary switches [pushbutton switches have a much higher failure rate]
Bids sent upon receipt of specific needs.
Don
N8DE
Tower Hill Electronics
Designs for Ham Radio
Connersville, IN


Eric Scace K3NA wrote:
>    Also needs excellent isolation between ports!
> 
>    A lot of us could use this...
> 
> -- Eric K3NA
> 
> -----Original Message-----
> From: towertalk-bounces at contesting.com
> [mailto:towertalk-bounces at contesting.com]On Behalf Of Jim Lux
> Sent: 2004 August 17 16:29
> To: TowerTalk
> Subject: [TowerTalk] Antenna switch matrices
> 
> 
> I'm looking for an HF antenna switch matrix (or suitable combination of off
> the shelf widgets) that does the following... (this is all pretty standard
> in the audio/video switcher business)
> 
> 4-8 antenna ports
> 4-8 radio ports
> 
> remote control interface that lets any radio select any antenna that's not
> currently selected by someone else.
> 
> Handles 1kW (doesn't need to hot switch)
> 
> grounds unselected antenna ports
> 
> Obviously a full crossbar type arrangement could do this.
> So could a collection of standard 1 in, N out switches along with a pile of
> T adapters and jumpers.
> And a microcontroller to select which relays, etc.
> 
> 
> An expandable design would be nice (i.e. you could have 4 radios selecting
> from among 4 antennas, and then add "switch/patch bays")
> 
> Push buttons to select antennas (with feedback) and/or network controllable
> would be nice.
> 
> Any and all suggestions solicited.
> 
> 
> 
> 
> 
> _______________________________________________
> 
> See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather Stations", and lot's more.  Call Toll Free,
> 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
> 
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> 
> 
> _______________________________________________
> 
> See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
> 
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>