On Mon, 15 May 2006 14:47:42 GMT, "GHB"
wrote:

Make sure your mobile has low SWR before installing an amp. You should be
using an exact half-wave length of coax in your mobile which, depending on
what coax, will be around 12 to 13 feet but not 18 feet as so many people
say.

Oh boy is this an old argument.. I dont even want to get started.
Search google this has been talked about forever in here. Some of the
most successful key down guys have used 18 feet and are successful
talking skip and shootouts. Truth is the swr of your antenna will
depend on your counterpoise. Oh well if your antenna is tuned properly
the amount of coax may not matter.

A real old timer!