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Hi Larry, You did a good job with the command list. No problems found! Yes, there are several versions of the NanoVNA firmware. I have found that the June 12 version is the best. It fixes the problem

Oh I use banggood all the time. I am more of "when is it coming" does anyone know. I ordered it on may 26th.... But its a waiting game i guess. Just being impatient :P Definitely need to get a batter

Banggood, Gearbest, Tomtop and a few others are like Aliexpress and eBay (buy it now mode) - they are an umbrella of many vendors that take a % of sales. You shouldn't have a problem - I've bought

I pre-ordered my Nano-VNA from

I guess to make the point clear, 3.5 mm SMA standards DO NOT APPEAR as IDEAL SHORT, OPEN on the chart. The fact that they DO on the nanoVNA SAYS IN ITSELF... There is an issue!

I am quite familiar with the error. Please read my post carefully. I point this measurement observation out as this is a STRONG HINT that something is NOT correct! In any case, I measured their

I'm afraid to say you are stepping into the error many people make. They first calibrate with a set of standards, then see those standards look perfect on the Smith Chart. I have hayfever at the

I should add, that after a calibration with their standards, the resulting short, open and load are PERFECTLY located on the chart. Really! Wow, I have to pray that a set of APC-7 or my sophisticated

Hello David, I mentioned in a much earlier post, I have no idea what is in the firmware definition for the standards supplied with the nanoVNA. In addition, based on the physical description of the

And with battery upgrade. My unit doesn't have a built in battery, so I found one, for now works... but pretend to update the connections and the battery itself, this one is a "little" big for the

no attachements...

[email protected]> wrote: I don’t see any attachments! Dave, G8WRB -- Dr. David Kirkby,

What exactly do you mean by that? Are you saying that the firmware has the ability to allow one to adjust the delay of the calibration standards? If so that’s good news. Just being able to enter a

Yes, calibration data can only be modified with electrical delay. For better accuracy, I customized the shortest and most accurate calibrations kits possible. Naturally, the accuracy of professional

Hi George, I scarfed the commands by going through main.c (and a few posts here) and there is some ambiguity on how to format a few of them as well as how executing some might affect others. If you

Some photos of my NanoVNA measuring a "6.5MHz" Butterworth LP

Hi Larry, The NanoVNA command listing you posted is all that is needed to communicate with the NanoVNA. I am writing an article on the NanoVNA as well as writing software to perform all the functions

David, Refer to my initial posting (a few posts back from this one) of the NanoVNA Console command listing as well as the Python sourcecode just mentioned. That should be more than enough info to

Hi David, The simplest way is to read the Python source code example. 9600 bauds seems to be a right choice for USB communication speed. Regards, David, F4HTQ.

This is somewhat prompted by a recent question about PC application function/capabilities. Is the (USB Communications) messaging between the nanovna unit and the host PC - 1. Documented? 2. Could be