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Re: I cannot connect to my NANOVNA serial port?
I use this.... It's handy for people like me who understand radio, but find computers a bit of a mystery.... https://www.majorgeeks.com/files/details/usb_device_tree_viewer.html
By Paul Brodie · #2637 ·
vnaJ software ?
Just wondering if vnaJ software can be used on the Nano ? Anyone tried it ? 73 de Andy
By Andy G0FTD <punkbiscuit@...> · #2636 ·
Re: NanoVNA Saver 0.0.9 screen size and saving screen questions
I thought Windows users just pressed Alt + Print screen key to grab a screenshot ? Then open up any graphics editor or Paintbrush thingy and Control V to paste it into the graphics editor. No need for
Re: Filter measurement
Qrp.dd (whoever you are) It seem like the distance from center conductor to flat part is as long as to the top of the female SMA so probable without any influence. You can test it yourself by
By Kurt Poulsen · #2634 ·
Re: Wanted chassis mount / bulkhead APC7 connectors
drkirkby@...> wrote: FWIW, I intend packaging up a NanoVNA with an APC7 OSL cal kit on the actual enclosure and having something with known properties. Why carry a cal kit when you
By Dr. David Kirkby from Kirkby Microwave Ltd <drkirkby@...> · #2633 ·
Wanted chassis mount / bulkhead APC7 connectors
Does anyone have any chassis mount APC7 connectors, similar to in the attached diagram? The outside must be APC7, but the inside could be APC7, N, solder mount, or at a push SMA/3.5 mm. Unfortunately,
By Dr. David Kirkby from Kirkby Microwave Ltd <drkirkby@...> · #2632 ·
Re: NanoVNA Saver 0.0.9 screen size and saving screen questions
Hi Steve, 1366x768 is difficult to fit all the things I want on the screen into - maybe in a later version, but for now, it's going to be difficult to fit everything. Each of the graphs/charts is at
By Rune Broberg · #2631 ·
NanoVNA Saver 0.0.9 screen size and saving screen questions
Is it possible to resize the screen so the entire screen will fit onto my computer screen? Currently I have to scroll up and down to see the entire page. Perhaps I need to change the screen resolution
By WB8GRS · #2630 ·
Re: Filter measurement
That c = 50e-15; needs to be replaced by a function C(f)=C0 e-15 + C1 e-27 f + C2 e-36 f^2 + C3 e-45 f^3 where C is in farads, and f in Hz. That's the format used by all HP/Agilent cal kits, which are
By Dr. David Kirkby from Kirkby Microwave Ltd <drkirkby@...> · #2629 ·
Re: NanoVNA Saver
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
By Rune Broberg · #2628 ·
Re: NanoVNA Saver
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
By Rune Broberg · #2627 ·
I cannot connect to my NANOVNA serial port?
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
By David R. Hassall WA5DJJ <dhassall@...> · #2626 ·
Re: NanoVNA Saver
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
By Dr. David Kirkby from Kirkby Microwave Ltd <drkirkby@...> · #2625 ·
Re: NanoVNA Saver
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
By Rune Broberg · #2624 ·
Re: NanoVNA firmware extended to 1500MHz with added scan command
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
By Gary O'Neil · #2623 ·
Re: NanoVNA Saver
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
By Rune Broberg · #2622 ·
Re: Filter measurement
Ah. Correct. He did not refer to the model structure but used direct numbers in the code.
By Erik Kaashoek · #2621 ·
Re: Filter measurement
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.
By Jeff Anderson · #2620 ·
Re: Analyzing Noise versus Leakage on CH1
David. Given the big leakage at high frequencies, would iisolation calibration work there anyway?
By Erik Kaashoek · #2619 ·
Re: Analyzing Noise versus Leakage on CH1
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
By Dr. David Kirkby from Kirkby Microwave Ltd <drkirkby@...> · #2618 ·