Agreed Jim!
Thanks
73
Jim W7RY
On 3/14/2019 1:38 PM, Jim Brown wrote:
On 3/14/2019 10:30 AM, Kirk Kleinschmidt via TowerTalk wrote:
The cable has loss figures equivalent or slightly better than generic
RG-8
Physics from an alternate universe! At least three reasons why this
cannot be true.
First, the center of most CATV coax is CCS, which is equivalent to
solid copper at VHF/UHF, but not below 5 MHz, where most hams use it.
Second, the shield is Al and often flimsy, so shield resistance is
greater than coax with a decent copper braid. Third, because the
shield diameter of RG6 cables is much less than RG8, resistance is
greater due to conductor diameter.
, and if you want even better specs, use RG-11.
Yes. But for the reasons noted above, I use RG11 cables like Belden
8213 and a decent equivalent mfd for Davis RF. I've measured loss of
the Davis cable and 8213 with a VNA, and found them equivalent.
73, Jim K9YC
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