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Hi Marv, The previous reply showed you that the signal level in the second antenna would be -9 dBm. Normal signal level calibration for a receiver is a S9 signal is 50 microvolts at the antenna, in

Hello Marv, I can tell by reading your question that some of your understanding of how the Nano VNA works is not clear. First the Nano VNA has two connectors they are referred to as Channel0 and

Thanks - that's exactly what I was looking for. Now I need to figure out how something like 1/10th milliwatt coming in on my ICOM IC-7300 receiver's front-end relates to its specs. Its sensitivity is

That would be 25 Watts minus 53 dB. 25 watts is 44 dBm 44 - 53 = -9 dBm? ?Or about? 1/10th milliwatt Now you know why they like to keep the loops REAL close for inductive charging. Kent WA5VJB

I am trying to use my NanoVNA-H to see how much near-field coupling I have between two antennas in my backyard that are about 10 feet apart. I have one antenna connected to the S11 port and the other

In one of these threads someone mentioned the special SD formatting app that you can download for free, and in cases where you get strange behaviour you can always try that. An SD card appears as at

We had an in-depth discussion on this subject a few months ago in this group.... /g/nanovna-users/topic/90696010#27854 Roger

I had a write fail using a 16MB SanDisk, "properly formatted." Right. A few days ago I received and tried the 16MB Patriot. It saved instantly, and without having to format it. NanoVNA-H

Hi I asked myself the same question as you. Obviously not: it is not necessary to calibrate the box before. You do with Calibration from nanovna-saver. I'm not smart enough to have known how to use

I could not find any threads that answered this question so here goes. I have seen a lot of videos of calibration of Nanovna using the Saver program, some show calibration only in the program itself

?

Between that, and ST having end of life'd the dfu tool, at some point, it will likely become the only option. As other have noted, though, the idea of lean, efficient, *small* software appears to have

Thanks Tim. This appears to be quite comprehensive. I hadn't been aware that the Cube software was available for Linux, so this might come in handy in the future. Bob Snyder

Here is the document that I had referred to showing how to update a NanoVNA with the ST Micro Cube programmer. - Tim -- Tim Dawson 972-567-9360

Dragan, The problem was that both enteries were different memory areas of the same device, so if I removed one, I removed both. The dfu-util -a 0 -D firmware.dfu worked after I figured out I was

Do what the error message says, disconnect any other device and update with: dfu-util -a 0 -D firmware.dfu

Thank you very much Roger. It works now in 0.3.10 – Win7 Already with the language, I have a lot of difficulty finding my way around in github. nanaovna-saver is a magic tool for me. I had a hard

The ST rep said to just replace the short calibration of OSL with the coil attached. "short" calibration of the coil. Makes sense now in hindsight. Anyone have insight into the "conversion to 'Z:

Ditto for me as well. Thanks Fred - n4cla

I honestly don't know where it landed, and had asked if someone could put it on one of the pages so that it could be easily found, but I guess that didn't happen . . . I'll repost when I get back to