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For me connecting my Anytone AT-D578 caused a conflict of some kind which makes accessing either it or the NanoVNA impossible. Look for "GD32 Virtual Com Port" in Device Manager. That could be your

Metrology level uncertainty study is a humbling science that few engineers understand, including me. I work with VNA data to over 100GHz daily, TDRs over 50GHz, I develop my own cal standards, blah

(Reminder that copy and pasting into groups.io as text means this traceback would be searchable and easily copied by others.) There are similar "Issues" reported at

Firmware version 20200501. It was running ok until I switched back to a H1 which somehow captured the Com 4 port and the SAA2 no longer recognises it and crashes. This is the error report before it

You should share the details, like the error message and probably firmware version. Share what steps you've take so far to solve this.

My Saver program running perfectly under Win10 for the last few days has now decided to fail to connect to my SAA2. It returns some error failure on the DOS screen and then crashes. Anyone has any

Many thanks for that advice. I couldn't agree more. That's why I wanted to make the purchase through R & L and not someone offshore. R & L have proven themselves to be rock solid reputable people over

use r&l , they have a phone, they have a real mailing address, they have a real store, and there are people you can talk to if needbe, good people, the other place, is just a passthru shop, good luck

Hi Gyula - trying your website, I got an emoji with a zipper across the mouth and a message in Hungarian. Fortunately my google-translate has the camera option and told me that your website is down

I have had a similar problem with one of my analyzers.? It only likes relatively small memory cards.? ?Got any 1 or 2 gigs? You really don't need anything as big as a 32 gig. Kent WA5VJB

Aparently most newer cards do not work. I have tryed 11 different manufacturers SD 32 Gig cards and none of them work. Aparently You need one of the older style SD cards. I found 2 older 16 Gig cards,

CORRECTION: that was a VNA-64 (not 65) sorry. Mike C.

Hi John, FWIW, I purchased 2 units (tinySA and VNA-65) both from R&L and I am a happy camper. (i.e. no problems, your mileage may vary) Mike C

Thank you - you've done a lot of work with the nanoVNA, it looks very interesting - Mark/K4LFL

I have been happy with my SAA-2N from R&L. 73, DOn N2VGU

My application is something like a bracelet antenna. Not spying. Lol. But as to the "short" calibration of the coil. According to an ST rep: "The idea is to calibrate away the characteristics of the

John, I have been entirely satisfied with the two SAA-2N units I bought from R & L. --John Gord

Can you see more info on my site -- Gyula HA3HZ ( http://ha3hz.hu )

I bought my Nanovna H4 from R&L and with the exception of not getting the "open" calibration standard it has worked fine.I have heard that you don't really need that calibration standard but they are

People are just mentioning that the VNA is transmitting very small amounts of power on that wire as if it was an antenna, and thus it will start behaving like one. You don't really have a choice if it