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Re: [TowerTalk] common grounds

To: <>, "Craig Clark" <>
Subject: Re: [TowerTalk] common grounds
From: "Tom Rauch" <>
Reply-to: Tom Rauch <>
Date: Sun, 7 Nov 2004 15:35:51 -0500
List-post: <>
> 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.


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