Hi all,
First time I post a question because i've an issue with my nanoVNA. Thanks to all for intersesting to it and many thanks for all your post ! I've learn so much things with all of you !
So when i try to measure the SWR with my NanoVNA, calibration is OK, but when I connect directly a small VHF / UHF Handheld in order to see how the swr is the lowest, the graphs always mooves. When i put my hands near the VNA i can read SWR is 1,5 at 140 MhZ, when i pull back my hands, i can read, 2,5 at 145 Mhz.... When a put the VNA verticaly i can read another measure, horizoly, another measure and it depend if i'm on a wooden table or a glass table.... So... it's really difficult for me to get a good and constant measure in order to see how the antenna work exactly !
Have you any idea ? I'm sure the nanovna is a good instrument but i do something wrong but i don't now what !
Thank's a lot for reading me and perhaps help !
73'S QRO
F4COH
Pierre