On Wednesday, May 8, 2024 at 04:32:19 PM MST, Ken WA8JXM <wa8jxm@gmail.com>
wrote:
"IDK, is "return loss" measurement necessary?"
Of course not.
"I checked some old coax a few years ago, connected a dummy load to the far
end and used the power meter on my Palstasr tuner to measure the input
power, then moved it to the far end for a measurement. Very little
difference in readings so I assume it was still good. Am I missing
something?"
Only accuracy. Otherwise, you are more or less using my "best" method
described earlier.
So, it depends. If the cable is going to be used for a 160-meter dipole you're
probably good enough. On the other hand, if you're going to feed a two-meter
EME array, that's a different story. I've done both.
Wes N7WS
On Wed, May 8, 2024 at 2:14 PM Wes Stewart via TowerTalk <
towertalk@contesting.com> wrote:
> The "best" way depends on what equipment you have to make the
> measurements. In my best case, I have a DG8SAQ Vector Network Analyzer
> (VNWA) that, with proper calibration will measure the through loss directly.
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