[TowerTalk] common grounds

[Tom Rauch]

> Will I inherit problems if i use a common ground wire for
an antenna switch
> and two antenna stack switches? Doing so would "save" me
two ground wires.

No, not unless the voltage drop on the ground lead is over a
few volts when you consider the sum of currents from the two
boxes assuming worse case wiring.

> I should "know" the answer but don't.

So should I. But it depends on the relays and how the boxes
are configured internally.

Almost certainly OK.