FW: [TenTec] Re: Mobile power wiring

[MINER, BILL (PB)]

Don,  

General Motors Corp. recommendation for installation of radio equipment in
their vehicles  is to connect positive and negative leads from the radio
directly to the battery. In this case you need fuses in both leads for fire
safety reasons.  The radio should "float" and not be grounded in the cab.
RF ground connection is made ONLY at the base of the antenna.  This is done
to minimize the chance of RFI of RF destruction of expensive electronic
items such as  fuel injection computers etc.

73,

Bill - WG6H

> ----------
> From: 	Faith III, Don C[SMTP:FaithD@mail01.dnr.state.wi.us]
> Sent: 	Thursday, April 22, 1999 3:57 AM
> To: 	'weingaertner@nac.net'
> Cc: 	'tentec@contesting.com'
> Subject: 	[TenTec] Re: Mobile power wiring
> 
> 
> Hello Robert.
> 
> My recommendation would be to use both a fused neutral/ground
> to carry current directly back to the battery and a short, low impedance
> (i.e. 1/2" or larger braid) connection to the frame (close to the radio)
> to
> serve as an RF ground.  There is a reason most rigs have both a power
> neutral/ground and a grounding post.  Granted, in the event of the ground
> fuse failure you might not be aware of it due to the presence of the RF
> ground, good operation when mobile requires good grounding.  A 6 to 8 foot
> length of 12 ga. wire from the rig to (or near) the battery doesn't cut it
> as a good ground.  
> 
> 73 de N9WR,  Don C. Faith III
> 
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