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Re: [RFI] HF Mobile Installation in 2001 Mazda

To: RFI List <rfi@contesting.com>
Subject: Re: [RFI] HF Mobile Installation in 2001 Mazda
From: Alex <kr1st@amsat.org>
Date: Fri, 04 Feb 2005 21:00:53 -0500
List-post: <mailto:rfi@contesting.com>
Tom Rauch wrote:

as long as the radio ground
point has low resistance continuity to the battery negative
terminal ground point.

Isn't that the reason why the recommendation to connect directly to the negative battery terminal was made in the first place? To ensure a low voltage drop at high currents? I don't think there are very many people out there that measure the resistance between the negative battery lead and the point on the chassis where they intend to ground the radio.


That's almost anywhere in a unibody
chassis.

Yes, when the car is new. After a few years that can be different, however. Been there, done that. The nice thing about a bad battery to chassis connection is that you'll probably find out about it before you attempt to turn on your rig. :) (car may not start due to a constantly rebooting ECM; no fuel pressure; chattering relays when you try to turn on your lights without the engine running...)


73,
--Alex KR1ST
http://www.kr1st.com

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