[CQ-Contest] Stackmatch with push buttons

Tom W8JI w8ji at w8ji.com
Fri Sep 2 18:49:47 PDT 2011


> I'am looking for idees to switch a stackmatch with push buttons
> Just that simple A or A+B or B with 1 push on the one of the 3 buttons

I'm not sure what the Stackmatch does, but my antenna stack box is upper, 
lower, both in, and both out. That's four choices. I can't imagine why it 
would not be adaptable to other systems.

It happens that the DX Engineering four square control head fits the 
application fine for all four choices. It is push button, remembers the last 
position, and has an amplifier interlock to inhibit switching while the amp 
is running, or stops the amp from running if you switch and then transmit 
before the relays settle.

I use switches like that for guest ops because if I don't, people surely 
will hot switch and blow things up.

I think rotary switches and flip switches are not worthy of use in anything 
that has to be frequently changed, so I've been avoiding them for years. I 
think around 1975 was the last time I had a rotary direction switch for 
receive antennas. :-)

73 Tom 



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