On Dec 31 2007, 6:45 pm, David wrote:
RHF wrote:
-http://www.hamradio.com/cgi-bin/uncgi/ase?MAN=Belden&MAX=250&
-

David,

The BURY-FLEX (TM) that is offered by the Davis RF Co.
is also pretty good stuff too. ~ RHF
http://www.davisrf.com/coax.php#buryflex
-But- It Too Is Over Kill For Shortwave Radio Listening (SWL)
"Receive Only" Antennas.

Are you suggesting we bury RG-8 in our gardens? The RG-8X is plenty
good below VHF.

Planting your coax at least 12' down can dramatically reduce common
mode noise originating in your home from reaching your antenna!

In repeated tests in the 'real world' and my lab I was unable to
detect
!!ANY!! difference caused by differing coax impedance with many
different receivers.
R2000
DX398
R390
R392
R8B
AOR 7030+
And every other receiver I could lay my hands on.

Pick the cheapest cable with the best braid and that is rated for
direct burial.
An advantage of the quad shield is the reduction of 'transfer
impedance' signal
ingress of MW signals. Very few people will live close enough to a MW
station to
experience worry about this minor problem.

Terry