The reason some manufacturers include fuses on the Negative lead is for those installers that run both Pos and Neg directly to the battery of a vehicle. This is not a smart move as normally you create a ground loop in the negative system of the vehicle and usually end up with Alternator Whine. It is always better to attach the negative lead at the closest grounding point to the mobile radio.
The reason behind the extra fuse is in case the chassis ground of the vehicle fails and you try to start the engine, the 100's of amps of current drawn by the starter will blow the fuse rather than using the radio as a ground. Gregg R. Lengling, W9DHI, Retired Administrator http://www.milwaukeehdtv.org K2/100 S#3075 KX1 S# 57 Politics is the art of appearing candid and completely open, while concealing as much as possible. -States: The Bene Gesserit View -----Original Message----- From: Budd [mailto:[EMAIL PROTECTED] Sent: Wednesday, January 07, 2004 9:18 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Fuses on power cords I'm caught in the middle of a couple of feuding technical "experts" on a probably trivial issue. Some Mobile radio power cords are fused on only the positive line. Others are fused on both lines. One's logic is you only need one fuse. The other maintains their communications shop lost all the radios with only one fuse to a shorted power supply and none of the dual fused radios were effected. The one fuse expert says that is BS and the other is lying. What is the collective experience/knowledge on here for this topic? Thanks in advance for your thoughts & 73 Budd Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
