[TowerTalk] Antenna switch matrices

[Eric Scace K3NA]

   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.

_______________________________________________
TowerTalk mailing list
TowerTalk at contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk