You can try a short coax loaded with low freq ferrites that fit tight on the coax. It helps (somewhat). Cal at the end of the coax
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On 8/5/2019 12:13 PM, Mike Brown wrote:
I saw similar effects myself when testing the antenna from a handheld
transceiver. As Peter says it is to be expected as, in its intended use,
the human operator together with the conductive part of the rig form the
ground plane that is required by that type of simple vertical antenna.
No hand effects have been noticeable when I have tested HF, VHF & UHF
verticals (all with adequate radial systems) or with VHF/UHF yagis.
There seems to be no need to do anything with the s21 port but it would
probably be good practice to put a 50ohm load on it.
Regards
On Mon, 5 Aug 2019, 15:15 , <spaceopqa@...> wrote:
Hello Peter,
On the device itself.
So I will elaborate a little more, as I would like to use one nanovna at
the field, as a simple SWR measurement tool, and of course operate it
handheld. Maybe it will not occur in a proper HF antenna?
Would you isolate the S21 port, or simply the "open" calibration tool will
suffice?
