Re: NanoVNA Testboard kit VNA Test Demo Board
#applications
What are you referring to by "the documentation link above"...? I'm not seeing any link there. -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this s
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Roy J. Tellason, Sr.
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#20803
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Re: nanoVNA - Measuring Inductors and Capacitors (Vers. 3)
#measurement
#tutorials
#video
Thank you for these videos.
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Martin Glazer
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#20802
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Re: nanoVNA - Measuring Inductors and Capacitors (Vers. 3)
#measurement
#tutorials
#video
For those of you who didn¡¯t like my first two attempts at this video.. I think I¡¯ve done a much better job on this one of explaining why I take my readings at 90 degrees phase angle on the smith
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Gregg Messenger VE6WGM
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#20801
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nanoVNA - Measuring Inductors and Capacitors (Vers. 3)
#measurement
#tutorials
#video
Version 3 https://youtu.be/iJ1qKE5O0bY -- VE6WGM
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Gregg Messenger VE6WGM
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#20800
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Re: Firmware bug in Dislord's Nanovna -H Firmware 1.0.45?
#firmware
#nanovna-h4
Sorry, in color command need set full RGB index, for white color command color 19 0xFFFFFF
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DiSlord
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#20799
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Re: Firmware bug in Dislord's Nanovna -H Firmware 1.0.45?
#firmware
#nanovna-h4
On H4 this can be from default color on H4 for LC/Match (all colors can be changed by color command) You need: Run in console command for change LC match text color: and not fogot save CONFIG->SAVE or
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DiSlord
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#20798
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nanoVNA - Measuring the resonant frequency of a crystal
#measurement
#tutorials
#video
A video I did up last summer on how to use the nanoVNA to measure the resonant frequency of crystals. The intended audience is those who are not wanting a complete and exhaustive characterization of
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Gregg Messenger VE6WGM
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#20795
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Re: nanoVNA - Measuring the resonant frequency of crystals
#tutorials
#video
#measurement
Well, I'm an electrical engineer and I found it very useful. Zack W9SZ
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Zack Widup
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#20793
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Re: Bad V2 clones incoming
Hi !! I find this that have the option to buy in EU.
By
ik1lbl@...
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#20791
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6BTV (sort of OT)
Hi, Anyone have the trap LC values for a 6BTV antenna? I am building a model of it in 4NEC2. -- 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist, RFI
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Dave (NK7Z)
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#20790
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Re: NanoVNA Testboard kit VNA Test Demo Board
#applications
The boards are very similar. I have not seen any documentation online for the six-connector board. What is different is that two additional sections have been added so that you can build attenuators,
By
Roger Need
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#20789
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Re: nanoVNA - Measuring the resonant frequency of crystals
#tutorials
#video
#measurement
Raoul, If you are interested in more info on measuring crystals with your NanoVNA I suggest the video by W2AEW on this subject. He carefully explains the terms and definitions and compares various
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Roger Need
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#20788
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Re: NanoVNA Testboard kit VNA Test Demo Board
#applications
I received this same six-connector "NanoVNA Testboard Kit" with my VNA. Where can I find documentation for this kit? The documentation link in this thread is for a different two-connector test board.
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Mark Adler
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#20787
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Re: nanoVNA - Measuring the resonant frequency of crystals
#tutorials
#video
#measurement
Great video, Gregg. Thanks very much. 73 de Raoul, CE3RY
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Raoul Meunier
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#20786
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Re: Hardware deficiencies when measuring high impedance with S21
This just became a bit more interesting. It seems that there is a discrepancy in how SimSmith calculates the angle depending on the circuit block used. For an S block it shows the same curve as in
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Dragan Milivojevic
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#20785
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Re: Hardware deficiencies when measuring high impedance with S21
I guess that depends on what you consider as minimal and if you are modeling an ideal resistor or a more realistic one. For example: on the first image is the plot of voltage angle at the load (port 2
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Dragan Milivojevic
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#20784
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Re: PROCEDURES for MEASURING DM LOSS and CM ATTENUATION of CMCs
I would presume type 43 material is used? For 160 and 80-meters your setup is quite reasonable. If you scanned to 30 MHz, likely a clean-up would be required, but you are aware of that. Good work!
By
W0LEV
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#20783
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Measurement of common mode attenuation - balun
#measurement
#tutorials
#video
https://youtu.be/_vvCBarRaPY Here¡¯s what I did to measure the common mode attenuation of a current balun that I recently constructed. -- VE6WGM
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Gregg Messenger VE6WGM
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#20781
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Re: Hardware deficiencies when measuring high impedance with S21
Dragan, Thank you for clarifying what you did on your tests. I took a look at the .s2p file that you posted and see that you get the same large S21 phase shift that I got in my tests. I posted my plot
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Roger Need
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#20779
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Firmware bug in Dislord's Nanovna -H Firmware 1.0.45?
#firmware
#nanovna-h4
Hi all! I don't know if I have problem, a faulty display or a firmware bug. I'm testing the function L/C Match. I enable the function by clicking "MARKER/SMITH VALUE/L/C MATCH" in the menu system, but
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Karl Jan Skontorp
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#20778
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