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Re: [RFI] House Ground

To: rfi@contesting.com
Subject: Re: [RFI] House Ground
From: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Wed, 16 Mar 2016 16:54:43 -0400
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
Many of today's PCs have a plastic case. The only metal is the PS case and some traces on the motherboard. They can be a real bear when hooked to a wired network.

73

Roger (K8RI)


On 3/16/2016 Wednesday 2:24 AM, Robert Nobis wrote:
Jim,

Many modern, small profile, PCs have a built in power supply (switching) and are connected to 
the AC mains with a two wire cord/plug, without a “green wire”. My iMac and 
MacMini are like this as is my Microsoft Surface Pro 3.   Per your step two, should these 
types of computers also be bonded to the radio with a heavy short braid?

Thanks 73,


Bob Nobis - N7RJN
n7rjn@nobis.net


On Mar 15, 2016, at 14:30, Jim Brown <jim@audiosystemsgroup.com> wrote:

A connection to Mother Earth has NOTHING to do with solving RFI problems. 
Proper bonding of all grounded conductors DOES help solve RFI problems.

This is the slide show for a tutorial I've done at Pacificon and for several 
ham clubs.

http://k9yc.com/GroundingAndAudio.pdf

73, Jim K9YC

On Tue,3/15/2016 11:45 AM, Tom Horton wrote:
I have just noticed that my home built in the 60's does not have an earth 
ground outside. Could that be causing some some of my weird RFI situations I am 
encountering. Been here a year almost now and just now really getting on the 
air.Symptoms ate noisy monitor (already put a lot of chokes on the leads), 
Monitor screen blacks out when treansmitting on 40 ... Ideas?
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