Owen Duffy wrote:
"Ralph Mowery" wrote in
:

http://www.davisrf.com/ham1/coax.htm

Greg's notes on Buryflex at http://www.seed-solutions.com/gregordy/Amateur%
20Radio/Experimentation/buryflex.htm are also interesting.

I have a 100 foot piece of Davis Bury-Flex I bought new and measured on
a network analyzer. At around 200 MHz and above, it acts very strangely.
The loss is 3 or more dB/100 feet above its spec. But if I take its
natural two foot or so diameter coil and flex it a bit, the attenuation
increases another couple of dB and stays there. When I check again some
days later, I find that it's returned to its lower but still way out of
spec value. It seems to be ok for HF, but I sure wouldn't use it above 2
meters. The genuine LMR400 I have is within its spec and doesn't exhibit
this strange behavior when flexing.

Roy Lewallen, W7EL