Topband: TV coax + F-connectors
Jim Brown
jim at audiosystemsgroup.com
Sun Feb 20 15:55:09 EST 2022
On 2/20/2022 10:53 AM, Mike Waters wrote:
> And RG-6 has a power handling curve very similar to RG-213.
WRONG! This may be true of SOME RG6 cables, but definitely NOT true of
many.
For at least 50 years, RG numbers have not been a spec, but rather a
general description defining impedance and approximate outer diameter.
There are hundreds of RG6 cables, many of them quite different from each
other, and there are many different connectors. There are 63 "RG6 type"
cables in what is probably the last printed version of Belden's catalog
(from 2006).
The vast majority of RG6-type cables are made for MATV and CATV
applications, with copper-coated steel centers and Al foil/braid
shields, and the number of those braids and foils varies from one to four.
There's at least one RG6 in the Belden catalog with a solid copper
center and a double copper braid shield. I have some of a
Pasternak-branded cable that appears to be built to that spec, and I
suspect it was for analog video inside studios. I also have about 500 ft
of a very similar Belden RG11, also designed for analog video.
73, Jim K9YC
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