Re: nanoVNA Output Voltage
This is the output from my NanoVNA as measured on an HP 8568B spectrum analyzer in Max Hold mode (50 Ohm input impedance). See attached photos. ~10 MHz -13 dBm ~100 MHz -9 dBm ~300 MHz -9.60 dBm ~600
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Don
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#2875
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Edited
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Re: Does anyone know how sensitive the nanovna is to electrostatic discharge?
Yes, I see the point being made now. I wonder if one of these mats could be used as a ground plane....
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Larry Rothman
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#2874
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Re: NanoVNA Saver
Rune, thank you very much for NanoVNA-Saver software. Your software is fantastic and you amaze me with all the improvements and features you continue to add. I really like that in all fit into my
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WB8GRS
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#2873
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Re: Using nanoVNA to measure the directivity of a directional coupler
Rudi, I totally agree with you than an applications note section would be a welcome addition to the "Files" category of this user group. The group is approaching 3000 messages and it is getting harder
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hwalker
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#2872
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Re: Noise
I recently made a phase noise measurement with my HP 8568B analyzer and KE5FX excellent software. In the picture enclosed pink line is the nanoVNA plot. For reference the blue line is from my 10MHz
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dk1vi
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#2871
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Re: Advice sought on specific measurement.
I did something similar a couple of years ago when type N "connector savers" were offered from China. These are male to female adapters. The first batch wasn't very useful about about 1.5 GHz. The
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Stuart Landau
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#2870
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Re: NanoVNA Saver
Hi Rune, Thanks. I really appreciate your help. -- Bryan, WA5VAH
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Bryan, WA5VAH
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#2869
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Re: NanoVNA Saver
Hi Bryan, this sounds easy to implement. I'll put it in the next version. :-) -- Rune / 5Q5R [email protected]> wrote:
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Rune Broberg
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#2868
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Re: NanoVNA Saver
Hi Rune, Thank you for this great software for the nanovna. I appreciate the 3 different markers which are available and you readout a lot of good information in the boxes to the left of the graphs.
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Bryan, WA5VAH
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#2867
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Re: Noise
I have one of those blue pcb return loss bridges from Aliexpress. Mine has the resistors correctly bridged. Directivity was measured: 10MHz 55dB (take this number with a grain of salt) 144MHz 39dB
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Carlos Cabezas
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#2866
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Re: RX-Port Input Impedance
Hi qrp.dd Incorrect, that is not a measurement of the CH1 input impedance. The cable between Ch0 and Ch1 create impedance transformation. You need to calibrate at the end of the test cable with a
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Kurt Poulsen
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#2865
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Re: Using nanoVNA to measure the directivity of a directional coupler
Hello hwalker, Thank you very much for this useful application note. I very much welcome the fact that not only the measuring setup was described in detail, but also the measuring result was evaluated
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Rudi
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#2864
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Re: Firmware with arbitrary scan length
Hi Carlos, like Herb said, the latest version of NanoVNA-Saver was due to include averaging - it does now :-) I saw what seemed like significant improvements in readings from data point to data point
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Rune Broberg
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#2863
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Re: NanoVNA Saver
For those waiting for new binaries: I just published 0.0.11 :-) This release brings averaging as a new feature: Press "Sweep settings" to select between running a single sweep (of optionally multiple
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Rune Broberg
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#2862
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Re: Traces and tracks
Yes. - Andy -
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London Calling <punkbiscuit@...>
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#2861
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Re: Traces and tracks
Torbjorn, Google looses things in translation at times and traces in English come out as tracks in other languages. Below is a Google translation from one of the Russian boards. "He poured the
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hwalker
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#2860
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Re: Does anyone know how sensitive the nanovna is to electrostatic discharge?
I believe the point that Dave Jones was making, is that the surface resistance of the mats does not have any adverse effects on 99.99% of the measurements one makes. I don't think his aim
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Dr. David Kirkby from Kirkby Microwave Ltd <drkirkby@...>
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#2859
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Re: Firmware with arbitrary scan length
Carlos The nanoVNA has about 5 to 10 dB headroom in S21 in alle ranges. This is done by adjusting the gain off the amplifier before the adc to the frequency range Biggest concern in overloading are
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Erik Kaashoek
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#2858
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Traces and tracks
What is the difference between traces and tracks? Some firmware are said to be for 2 tracks or 4 tracks. In the Nano you can choose to show different traces. Is it two words for the same thing?
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Torbj?rn Toreson
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#2857
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Re: Advice sought on specific measurement.
I'm playing with rather more exotic HW, a Tek 11801 & SD-24 TDR head which is a ~26 ps rise time TDR evaluating the quality of Chinese RF connectors. But the principles are the same and I'm very
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Reginald Beardsley
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#2856
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