Coax Choke For Receiving Antenna ?
 

bpnjensen wrote:

Yep, get the non-contaminating version with the black jacket, which is suitable
for direct burial.

In this case, what does "non-contaminating" mean? Does it refer to the
inert chemical makeup of the jacket, or does it refer to some
electrical property in which signal is able to pass through unaltered
(as compared to the "contaminating" type :-/ )?

Chemical makeup, I believe.

dxAce
Michigan
USA

Coax Choke For Receiving Antenna ?
 

dxAce wrote:

bpnjensen wrote:

Yep, get the non-contaminating version with the black jacket, which is suitable
for direct burial.

In this case, what does "non-contaminating" mean? Does it refer to the
inert chemical makeup of the jacket, or does it refer to some
electrical property in which signal is able to pass through unaltered
(as compared to the "contaminating" type :-/ )?

Chemical makeup, I believe.

See http://www.smeter.net/daily-facts/4/fact29.php which gives a brief explanation.

dxAce
Michigan
USA

Coax Choke For Receiving Antenna ?
 

See http://www.smeter.net/daily-facts/4/fact29.php which gives a brief explanation.

dxAce
Michigan
USA

Excellent explanation, thanks.

BJ

Coax Choke For Receiving Antenna ?
 

"bpnjensen" wrote:


In this case, what does "non-contaminating" mean?

It means water won't cross through the jacket and contaminate the
dielectric and damage the conductors. Even the best coaxes, short of
hardline, "breathe" a little, which is where the contamination comes
from.

--
Eric F. Richards

"Nature abhors a vacuum tube." -- Myron Glass,
often attributed to J. R. Pierce, Bell Labs, c. 1940