[TowerTalk] More Radials = Higher SWR???

Dan Maguire danac6la at gmail.com
Mon Feb 6 05:59:07 EST 2023


On 2/5/2023 8:18 PM, Lux, Jim wrote:
>>> I just do a cal with the coax, putting the O,S,L at the end. Then between that measurement, and the no coax cal, you've got the S21 for the Coax, which most of the tools will de-embed if needed.  You could probably just do a "open" measurement and it would be good enough to measure the coax.

>>> I guess if you've got an antenna up on the tower, that's a bit harder.

There's a detailed description of several different ways to "calibrate
out" a transmission line when the far end is hard to get to here:

https://ac6la.com/zpapndx1.html

Dan, AC6LA


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