[Elecraft] 75 ohm coax

[Jim Brown]

On 4/1/2020 6:37 PM, Don Wilhelm wrote:
> Even RG-6 will withstand 1500 watts with no problems.

RG6 is a VERY generic description of coax, and there are probably 100 
very different cables carrying that designation. We are most familiar 
with those manufactured for the CATV industry, all optimized for low 
weight, low cost, low loss at VHF/UHF, and very low power. But these 
cables mostly have CCS center (copper coated steel), Al foil, Al braid 
shields. This causes them to be rather lossy at low RF.

There ARE a few more far more robust RG6 cables designed for 
transmitting and for analog video (remember that?). I have some -- 
double copper braid, solid copper center. What I have is labeled 
Pasternak, but I've seen a very similar RG6 in the Belden catalog.

73, Jim K9YC