NanoVNA usable as spectrum analyzer?. Yes, if you know what you are doing
If you ignore the phase any signal presented at port 2 should be mixed with the CLK2 and create some response.
As a test I applied a 10MHz -50dBm signal. This resulted in the first measurement.. You
By
Erik Kaashoek
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#2118
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Upgrade nanovna Win10 x64
hi i can't upgrade my nanovna on win10 x64
see picture
the message is:
THIS FILE DOESN'T HAVE CORRECT FORMAT
???????
ty
https://pasteboard.co/IwBRO6Q.png
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stephinvest81@...
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#2117
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Re: NanoVNA software on windows 10 x64?
You need to use the V 1.03,it's ok for me on W10 x64
the V1.01 no work on win10
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stephinvest81@...
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#2116
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Re: NanoVNA selector switch issues?
Ooops, too early in the morning here.
My eyes followed the time to the right of the defs and I saw 200 to the left and 'mS' kinda stuck.....
Where's my coffee!!!
By
Larry Rothman
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#2115
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Re: NanoVNA selector switch issues?
At least in the source code version I have, it is defined as 200 system
ticks - which, going by the comments in the code, should be about 20ms.
That shouldn't create a problem in and of itself.
--
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Rune Broberg
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#2114
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Re: NanoVNA selector switch issues?
Rob,
I just had a look at the code - debounce is defined as 200mS which I think is the culprit.
I think if someone could build the F/W with a debounce of 100mS (or 75mS?), that would solve the
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Larry Rothman
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#2113
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Re: nanoVNA Real Resistance Measurement Range
60 ps is about one cm so it seems some calibration problem
By
Erik Kaashoek
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#2112
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Re: Case for NanoVNA
[email protected]> wrote:
HP/Agilent have made a few instruments over the years that combine the
functionality of several instruments into the one box.
Your comment got me thinking about the
By
Dr. David Kirkby from Kirkby Microwave Ltd <drkirkby@...>
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#2111
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Re: Case for NanoVNA
From: Merlin Fox
Amazon's demand algorithm at play I guess! Even worse on ebay :(
=======================
I decided to go for two of the bigger boxes (MAX002S) as I have more kit which can then be
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David J Taylor
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#2110
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Re: Case for NanoVNA
Amazon's demand algorithm at play I guess! Even worse on ebay :(
By
Merlin Fox
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#2109
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Re: nanoVNA Real Resistance Measurement Range
Hi Tom
I get my nanoVNA to day. In the coming week I will measure the empty cap against my HP85033C calibration kit a let you know.
Kind regards
Kurt
-----Oprindelig meddelelse-----
Fra:
By
Kurt Poulsen
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#2108
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Re: TDR Python Script
Hi Salil,
I'm missing the measurement units in your diagram.
By
Wolfgang Kiefer
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#2107
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Re: TDR Python Script
Hi Salil,
Tested your new script and it is working, I just modified a few things for my own preference.
And I use 'ax1.set_xlabel' instead of 'plt.xlabel' to have xlabel displayed.
neb
By
neb
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#2106
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Edited
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Re: nanoVNA Real Resistance Measurement Range
Hi Erik,
Wow - great analysis! Your conclusion pinpointed the OPEN test deviation precisely! When I did the initial calibration I had not yet decided to document the testing. Then after
By
Tom VA7TA
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#2105
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Re: New FreeRTOS-based nanoVNA 4.3" 800x480 LCD on Aliexpress
Unfortunately, I've since trashed all the related "stuff" and will not trust my memory ... However, I thought Hugen had set up a contact to deal with us english only speaking folks ...
regretfully,
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jim <ab7vf@...>
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#2104
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Re: NanoVNA selector switch issues?
Hi Larry, et. al.,
You were right.? It happens in ui.c (static int Btn_check(void))
starting on line 121.? So it looks to me like you have the problem
figured out.? The jog switch was something
By
Rob Frohne (KL7NA)
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#2103
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Re: NanoVNA selector switch issues?
Thanks Larry, for responding!? It felt the same to me.? I'll have to dig
into the source code and see what is happening.? I kind of wanted to
know if others were experiencing the same thing
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Rob Frohne (KL7NA)
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#2102
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Re: What about fittng N conectors like this?
That does make perfect sense. Thank you for the clarification.
Don
By
Don
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#2101
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Re: Battery won't keep charge after a few days of non-use
Paul, have a look at post 957 for more info on this issue.
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Larry Rothman
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#2100
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Re: Battery won't keep charge after a few days of non-use
thank you for that info, my old eyes aren't up to the task, so I'll live with it I guess
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Paul Raymond <paulandlenora@...>
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#2099
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