Hi,
This indicates you have become part of the antenna system... It also indicates you might consider adding a good 1:1 choke at the antenna feedpoint, and try the test again. I would guess you will see less of a slide...
See:
for more on how and why this works...
73, and thanks,
Dave (NK7Z)
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources
toggle quoted message
Show quoted text
On 7/9/23 13:02, Edward Stavin VE3VYT via groups.io wrote:
Hi. I have set and calibrated the nanovna and then hooked up my antenna to see the SWR graph. Let's say I have a 20m antenna attached and it shows a nice dip at 14.45Mhz to swr of 1.2. all this time of course the device has been in my hand.
Without moving my feet I put the nanoVNA on the nearby plastic chair and when I let go the dip slides left to 14.2Mhz.
Is it normal to see different swr readings like this when holding or not holding the nanoVNA? Which is the correct reading? Sorry for the newb question. Appreciate any input.
Edward
