[RFI] Rfi help

[Kenneth G. Gordon]

On 16 May 2020 at 12:26, Jim Brown wrote:

> On 5/16/2020 11:20 AM, Kenneth G. Gordon wrote:
> > RG-213 has two shields
> 
> This is NOT generally true. For almost half a century, RG-numbers for 
> popular coax cables have been generic. RG8 and RG213 are used to 
> describe 50 ohm coax with OD in the range of 0.3 to 0.4 inches. The most 
> recent print copy of Belden's catalog lists dozens of different cables 
> carrying these designations.

Yes, Jim, and we must be absolutely accurate at all times about everything important.

Even so, I was wrong: it isn't RG-213 which has two shields: it is RG-214, which I used 
when setting up satellite TV earthstations many years ago. Those operated between 3 and 
4 GHz, as I remember it.

vy 73 for now,

Ken W7EKB