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Hi David, I haven't considered it closely yet. A quick numerical average would be obvious for doing just a few sweeps, while a more complex look at the data, including for example showing some form of

I just released 0.0.10: https://github.com/mihtjel/nanovna-saver/releases/tag/v0.0.10 It's not the most exciting release, but it offers some quality of life improvements, such as the ability to choose

Dear members, I can't seem to connect to my usb serial port on my NANOVNA. I want to be able to use the TAPR Vector Network Analyzer software Version 4.3 and when I plug in my NANOVNA into my

What sort of averaging do you intend doing? The HP 8753/8720 VNAs use an Infinite impulse response (IIR) filter. It means that one can take 1000 averages, without storing data for the last 1000

Hi Bruce, good to hear that it works! Averaging is on the roadmap, probably for 0.0.11 (or 0.1.0 or 1.0.0, however I name it) -- Rune / 5Q5R

Hi again Erik; My apologies for misspelling your name on my earlier post. :-O I re-flashed the 1500 MHz firmware this morning, and have observed no change in behavior. To ensure I'm not on a different

Hi Herb, the .exe releases will continue to be made, and the next one will be out "soon" (maybe tonight, though it's getting late.) -- Rune / 5Q5R

Ah. Correct. He did not refer to the model structure but used direct numbers in the code.

Erik, I'm not sure if the NanoVNA-H code at https://github.com/hugen79/NanoVNA-H is the firmware you are referring to, but there is a 50 femtofarad capacitor in the eterm_calc_es() routine in main.c.

David. Given the big leakage at high frequencies, would iisolation calibration work there anyway?

setting of the adc, the noise floor shows a very different pattern If you have a NanoVNA with no screening, it would be interesting to know if some wire wall, in a plastic bag, could be used absorb

You can use the TAPR PC SW for averaging . See File section of this group It will not improve directivity or dynamic range

I tried the 1500 MHz firmware yesterday and was happy to see that nanoVNAsaver worked with the extended range. Of course, with the very weak signal levels above 900 Mhz the data plots are quite noisy.

erik@, if you want to get deep measurement for S21, I suggest you to disconnect NanoVNA from PC and perform measurement from the battery. The result will be significantly better. I don't know what is

Interesting measurements! On my own build VNA using exactly the same principles as the NanoVNA (SI5351 and 3*SA612) but using a PC audio input instead of an on board adc and a PC processor for the dsp

I got this open load with NanoVNA, is it bad?

I received my NanoVNA yesterday. I purchased from this ebay seller:

Just performed test. I disconnected PC to avoid interference and performed measurement from the battery. SHORT load on CH1: noise floor almost -50 dB above 600 MHz OPEN load on CH1: noise floor

I've been looking into what could be done to improve the nanovna's dynamic range at the +900MHz frequencies, and so discussions about noise and leakage are very relevant. I've started my analysis as

Don't confuse isolation with noise. Noise doesn't depends on a leak from the second channel. Noise is independent. If you want to calibrate isolation, you're needs to reduce noise by terminating input