Does it require a ground plane? I would put an SMA connector centered on a plate of PC clad card. Then feed the cable thru back to the VNA.
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From:
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[email protected]> on behalf of George <steber@...>
Sent: Thursday, July 11, 2019 7:12 PM
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[email protected]Subject: [nanovna-users] SRH508S Antenna SWR with NanoVNA
Decided to test this SRH805S wide band antenna. They claim it covers 144/430/1200 MHz.
While the nano doesn't cover 1200 MHz, it does handle the lower two bands.
Clearly there is a problem as 144 MHz band is not showing any reasonable SWR.
By the way, my graph shows the SWR (left scale in red) and reflected power in percent (right scale in green).
As for the SRH805S, I must have gotten a bad one. One band missing!
