All depends on where you ground your radio. If your radio ground is the dashboard, and the ground braid from the engine block to the battery negative gets disconnected for some reason, (garage mechanics are good at this) your only vehicle accessory ground path can be the radio via the shield of the antenna coax. This can be known as *serious* smoke.
If you choose the better method of grounding your radio, the black lead, you connect it to the negative lead of the battery preferably away from the battery. Other people will have their opinions, but these are mine ... and I have never had a problem with it. Do your installation properly, you won't have a problem. 73, Neil - WA6KLA Gregg Lengling wrote: > > 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/
