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Re: [TenTec] question

To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Subject: Re: [TenTec] question
From: "Stuart Rohre" <rohre@arlut.utexas.edu>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Fri, 21 Dec 2007 19:04:50 -0600
List-post: <mailto:tentec@contesting.com>
Given Bob's constraints of having the computer on the same third pin outlet 
ground as the rig, a transformerless interface can work.  However, with the 
proliferation of accessories to computers and rigs, you find many RFI 
problems caused by users' need to use more than one duplex outlet, and those 
being on different legs of the power system.

If there is a chance you will take your rig to locations for emergencies for 
example, or demos, where you cannot verify the ground integrity, a 
transformer interface to break ground loops or isolate varying grounds is a 
cheap insurance policy.


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