On Sat, 21 Oct 2006 15:58:51 -0700, Jay in the Mojave
wrote:

+++Hello All:
+++
+++Ok here is a little more on the Motor Home Install.
+++
+++Usually supplied is 18 feet of RG-58C Coax with many antennas isn't long
+++enough for most Motor Home installs.
+++
+++By replacing the cheap-O RG-58C Coax with RG142 or RG142B or RG-400
+++Teflon Coax, with the length that is needed will be a big improvement
+++over the cheaper RG-58C coax supplied with the antenna, in this is case
+++a Wilson 1000 or 5000 Mobile Antenna. Its not a easy thing to do
+++changing the coax but not impossible. And its costs more money.
+++
+++This allows you the longer length you need for the Motor Home Install,
+++and the Teflon Coax will last forever. And take several hundred watts to
+++a grand without any problems.
+++
+++Cable Experts or most all coax dealers carry the good Teflon Coax.
+++
+++http://www.cablexperts.com/
+++
+++Jay in the Mojave
***********

Attenuation wise RG141/142 has not that significantly less attenuation
loss than that of RG-58C. You are correct in that RG-141/142 will
provide better life than that of the RG-58C. RG-141/142 does provide a
more constant loss over its lifespan than that of RG-58C. This is due
in part that there is far less chloride contamination of the
dielectric. Thus less chances of increase losses over time. Also for
power handling capabilities, RG-141/142 has no more than that of
RG-58C.

Definitely an increase in cost. The double shielded silver plating of
RG-142B will set you back a few dollars more than that of RG-58C.


james