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
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