Re: Possible location of latest VNA source code??
The hang occurs both on battery power and on port USB. With native, stock firmware never freezes. With native firmware does not hang. With the firmware, which is compiled from source Hugen, freezes.
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DMR <bryonikater@...>
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#632
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Edited
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Re: Possible location of latest VNA source code??
My white Gecko clone hangs at the splash screen sometimes as well when running off the battery but never hangs when powered by the USB port. Does yours hang when powered by USB or battery? These
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Larry Rothman
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#631
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Re: Possible location of latest VNA source code??
Everything is smooth, my analyzer freezes on the splash screen. The code below does not fix this. Sometimes it works, sometimes every other time. I have an original firmware dump STM32, merged when I
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DMR <bryonikater@...>
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#630
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Re: nanovna sharp issue on Windows 10 64 bit
Thank you Hugen! release 1.03 works very good for me
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pa1pxl@...
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#629
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Re: nano cases
Frank, Why don't you try something like what I drew for message /g/nanovna-users/message/608 ? Since I don't own a 3D printer (yet), I would assume my design could be printed on it's
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Larry Rothman
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#628
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Re: nano cases...
I am guessing that the N9914 is about 25 dB more expensive! I have been unlikely with FieldFoxs. Bought an N9923A reconditioned from Agilent. I found endless firmware bugs, then it had a hardware
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Dr. David Kirkby from Kirkby Microwave Ltd <drkirkby@...>
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#627
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Re: Smith chart impedance printout
Yes, my error. Oh well, only a hand calculator away!
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alan victor
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#626
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Re: LabView Interface
Hello Joe and nice work on your LabVIEW interface to the nanoVNA. I'm wondering if you plan on sharing this with the group? I would be very interested in learning how you did what you did. I have been
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Larry Goga
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#625
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Re: nano cases
My original reason to design a case for this little thing, is the open sides are a place for something to get in and short the beast out. I never liked "test equipment" to get dirt or particles to get
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Frank S
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#624
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Re: nano cases
I get it Frank. Boxing it up does have some downside. I think it depends on what you want to do with it, how much use/abuse it will receive, and whether or not your hands are more functional than
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kh6sky
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#623
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Locked
Re: Correct button?
Hi Alan, I just want to point out that the polynomial + delay + impedance method for characterising standards is itself just an approximation. In this day and age (of cheap storage) it is simpler to
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Roger Henderson
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#621
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Re: Possible location of latest VNA source code??
Hi, 11:32 Mon 29 Jul 19 , DMR wrote: Where are these vars? I take the full code from here: https://github.com/hugen79/nanovna_900 Are we talking about different source code? Lapo, IK5NAX
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Lapo Pieri <ik5nax@...>
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#620
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Re: nano cases...
I agree... to a point. This thing isn't a "real" VNA (in the commercial respect). I don't know if I would have used it when I schlepped up a water tower in Melbourne Australia. I had a Keysight N9914
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Frank S
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#619
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Re: Smith chart impedance printout
Hi, 19:27 Mon 29 Jul 19 , alan victor wrote: I think I have to study the code a bit more to make more complex mods, stay tuned ;-) Lapo, IK5NAX
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Lapo Pieri <ik5nax@...>
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#618
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Re: Smith chart impedance printout
16:07 Mon 29 Jul 19 , alan victor wrote: No, polar format display coefficient of reflection, not impedance! Lapo, IK5NAX
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Lapo Pieri <ik5nax@...>
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#617
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Re: Smith chart impedance printout
Hi Lapo, Wait a second. The display is available as R+jX. Just switch to polar.format. And if you desire you can dedicate trace 0 to a Smith plot while you dedicate trace 1 to a polar plot. Of course
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alan victor
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#616
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Locked
Re: Correct button?
Thanks! That is helpful. The fact that the polynomial code to describe the open is present implies he was aware of the situation and at this point elected to put it aside. So for all intent and
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alan victor
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#615
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Locked
Re: Correct button?
I checked the code repo's posted and this is what I think the situation is with the standards: The load is assumed to be perfect - i.e. the assumption is that nothing is reflected from the load. The
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Roger Henderson
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#614
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Re: Smith chart impedance printout
Sure Lapo. That is great. However they are all practical representations. In fact why stop there. You could convert the result to its parallel equivalent admittance and provide that as well. I suspect
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alan victor
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#613
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Re: Possible location of latest VNA source code??
Hugen has already committed his changes back to edy555's original github repository. Have a look at https://github.com/search?q=nanovna
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Larry Rothman
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#612
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