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The NanoVNA has two "interfaces" - one is the touch screen, the other is the serial port over USB.? So there's lots of functions available by sending serial commands and getting responses back (as

Any NanoVNA can control from CPU Software like NanoVna Saver or NanoVNA-App open com port connection and send commands You or any programmer can update exist / write new software for SD card access

Advice: When in doubt, calibrate....... Besides, the whole cal. procedure is relatively insignificant in time. Even using the HP 8753C, I calibrate every time I want to measure my latest "brain fart".

Greetings, Thank you for that information. But, I am not clear as to how to initiate an connection to,?and or the ability to exchange data to and from the SD Card which is installed into the

Not sure but perhaps install the win 10 dev kit as suggested under the windows usage notes for pyinstaller here: https://pyinstaller.readthedocs.io/en/latest/usage.html#platform-specific-notes-windows

My NanoVNA H/H4 fw support commands for SD card access, so some one can write software for work. sd_list {pattern} sd_read {filename} sd_delete {filename} Commands: sd_list {pattern} example get all

Hi Joe, Anything that is saved is stored for future use. Once you've chosen a range to calibrate, you can turn the NanoVNA off and then just recall the stored calibration. As far as needing a wider

When you do a Calirate say between 3.5 and 4 Mhz, and save it. Now next time you power the unit up (NanoVNA-H4) And choose that saved profile, is that calibration still valid? Or should you do it

Use a toe nail clipper and a nail file? -? ;-)

Thx Larry... At least it’s been considered. Back to figuring out how to “hog out” the opening for the SD card in my nano VNA-H4 case.. :( -- Regards, Robb N2VJO

Won't work - the Nano is a USB CLIENT. You need to have a USB HOST port in order to plug in a memory stick. This has been discussed before in the forum.

A quick check on Amazon shows a simple USB female-to-female connector (set of two, actually) costs about $6. One of those and the existing cable that comes with the NanoVNA gets you “on the air”

Great idea Robb ... or alternatively, make the internally installed SD card readable via the USB interface. No case modification would be required. -- 73 Gary, N3GO

How about an off-the-wall suggestion from a newbie? How hard would it be to use a USB memory stick on the already existing USB port? If that is feasible, then all users need do is buy an appropriate

Is there anywhere in the UK I can get an authentic version please?

Hi to all. I had problems getting an SAA-2N using vna-saver running on windows 10, specifically it would not connect to the USB port. I solved that, and having used the vna saver on my new laptop I

Yes, that is correct. [email protected]> wrote:

Sorry Donald...somehow I conflated Donald into Doug.

Hi Doug, So the null gain (in -DB) will not be accurate but the frequency of the null will be accurate...if I do no calibration? Thanks, Steve

Steven: Taking this further, if you are just looking for a return loss null, such as for tuning a magnetic loop to a given frequency, you don't even need to do any calibration, as the frequency will