Gregory Fischer wrote:
> http://home.comcast.net/~kk1l/kk1l_2x6switch/TwoRadioSwitchDocumentation.pdf
>
>
> Take a look at this solution. Less expensive and provides the lockout
> from the control unit.
I'm not so wild about that design. If a relay fails closed/stuck, you
can short one radio to the other by closing another relay, and there's
no failsafe mechanism to provide feedback to the controller.
say RLYA-2 fails stuck closed. When you turn on RLYB-2, radio A is
connected to radio B.
if those are actually SPDT relays, you do much better by using arranging
them differently.
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