
nanovna as a sig gen
http://www.reeve.com/Documents/Articles%20Papers/Reeve_WBSG1_SigGen.pdf
http://www.reeve.com/Documents/Articles%20Papers/Reeve_WBSG1_SigGen.pdf

By
Erik Kaashoek
· #19197
·


Fixture Deembedding Sparameters
I'm most interested if you learn something This is a possible tool: https://github.com/fransschreuder/DeEmbed The doc folder contains an explanation with the math used
I'm most interested if you learn something This is a possible tool: https://github.com/fransschreuder/DeEmbed The doc folder contains an explanation with the math used

By
Erik Kaashoek
· #19134
·


Measuring characteristic impedance of a stripline with a nanoVNAH
The calibration load
By
Erik Kaashoek
· #18469
·


Measuring characteristic impedance of a stripline with a nanoVNAH
Far end was terminated with nominal load. This was 20cm coax!
Far end was terminated with nominal load. This was 20cm coax!

By
Erik Kaashoek
· #18467
·


Measuring characteristic impedance of a stripline with a nanoVNAH
Yes
By
Erik Kaashoek
· #18466
·


Measuring characteristic impedance of a stripline with a nanoVNAH
Forgot the S11 plot of the bad coax
Forgot the S11 plot of the bad coax

By
Erik Kaashoek
· #18453
·


Measuring characteristic impedance of a stripline with a nanoVNAH
And here is 20cm not so good coax This should show a nice increase of impedance with frequency
And here is 20cm not so good coax This should show a nice increase of impedance with frequency

By
Erik Kaashoek
· #18452
·


Measuring characteristic impedance of a stripline with a nanoVNAH
Here it is. Tell me if you need more For the calculation maybe take 3 points some/many MHz apart and calculate the center of the circle that goes through these three points. This enables plotting the
Here it is. Tell me if you need more For the calculation maybe take 3 points some/many MHz apart and calculate the center of the circle that goes through these three points. This enables plotting the

By
Erik Kaashoek
· #18450
·


Measuring characteristic impedance of a stripline with a nanoVNAH
And here is the 02GHz scan of a 3cm coplanar stripline on FR4 that seems to confirm the impedance is changing with frequency The marker is at 1GHz
And here is the 02GHz scan of a 3cm coplanar stripline on FR4 that seems to confirm the impedance is changing with frequency The marker is at 1GHz

By
Erik Kaashoek
· #18446
·


Measuring characteristic impedance of a stripline with a nanoVNAH
Good point. It will be a coplanar waveguide with ground or microstrip lines with signal side ground plane (see: https://chemandy.com/calculators/coplanarwaveguidewithgroundcalculator.htm )
Good point. It will be a coplanar waveguide with ground or microstrip lines with signal side ground plane (see: https://chemandy.com/calculators/coplanarwaveguidewithgroundcalculator.htm )

By
Erik Kaashoek
· #18424
·


Measuring characteristic impedance of a stripline with a nanoVNAH
I know, but I like to have a method that works for "any" impedance/length and "any" frequency combination This because the impedance is frequency dependent and I can not modify the length or target im
I know, but I like to have a method that works for "any" impedance/length and "any" frequency combination This because the impedance is frequency dependent and I can not modify the length or target im

By
Erik Kaashoek
· #18423
·


Measuring characteristic impedance of a stripline with a nanoVNAH
I'm trying to measure the (frequency dependent) characteristic impedance of a 3cm stripline using a nanoVNAH Attached the measurement using nanoVNAApp. Using RFsim99 I calculated that a 3cm striplin
I'm trying to measure the (frequency dependent) characteristic impedance of a 3cm stripline using a nanoVNAH Attached the measurement using nanoVNAApp. Using RFsim99 I calculated that a 3cm striplin

By
Erik Kaashoek
· #18420
·


NanoVNA application by OneOfEleven
#applications
If you need inspiration you can look here https://github.com/erikkaashoek/TaprVNA
If you need inspiration you can look here https://github.com/erikkaashoek/TaprVNA

By
Erik Kaashoek
· #18130
·


Wrong firmware  white screen
Only connect SWDIO, SWCLK and GND. NRST is not needed. Neither is VDD If needed force nanoVNA in DFU mode by connecting BOOT0 and VDD before switching on.
Only connect SWDIO, SWCLK and GND. NRST is not needed. Neither is VDD If needed force nanoVNA in DFU mode by connecting BOOT0 and VDD before switching on.

By
Erik Kaashoek
· #17783
·


We started selling SAA2 with Ntype RF connector and 4inch display
You can pay with paypal on Alibaba, just start a chat with Maggie and request instructions.
You can pay with paypal on Alibaba, just start a chat with Maggie and request instructions.

By
Erik Kaashoek
· #16945
·


Understand how NanoVNA work, NanoVNA as SA
#features
#еraining
How does the tinySA compare to these requirements?
How does the tinySA compare to these requirements?

By
Erik Kaashoek
· #16402
·


Firmware and PC application stability
#stability
#nanovnah4
#nanovnah
#specifications
Anyone that got hold of GPLv3 licensed code can use it in the GPLv3 way.
Anyone that got hold of GPLv3 licensed code can use it in the GPLv3 way.

By
Erik Kaashoek
· #16360
·


Understand how NanoVNA work, NanoVNA as SA
#features
#еraining
The only reason to add the FFT code/mode would be to allow the use of a nanoVNA as a narrow band spectrum analyzer using the CH1 input with the disclaimer there is NO mirror suppression so interpretin
The only reason to add the FFT code/mode would be to allow the use of a nanoVNA as a narrow band spectrum analyzer using the CH1 input with the disclaimer there is NO mirror suppression so interpretin

By
Erik Kaashoek
· #16336
·


Firmware and PC application stability
#stability
#nanovnah4
#nanovnah
#specifications
As someone that is actively maintaining various GPLv3 SW packages I'd like to add some words. The issue seems to be foremost a matter of tone. Nobody here will disagree that GPLv3 SW comes with certai
As someone that is actively maintaining various GPLv3 SW packages I'd like to add some words. The issue seems to be foremost a matter of tone. Nobody here will disagree that GPLv3 SW comes with certai

By
Erik Kaashoek
· #16332
·


NanoVNA application by OneOfEleven
#applications
To get an impression of the usability it is useful to look at the phase of an open S11 i.s.o the magnitude of the noise Often at higher frequencies the magnitude is determined by various harmonic prod
To get an impression of the usability it is useful to look at the phase of an open S11 i.s.o the magnitude of the noise Often at higher frequencies the magnitude is determined by various harmonic prod

By
Erik Kaashoek
· #16148
·
