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After you've done a calibration, reconnect the open short and load to port 0, and observe S11. In log mag display the first two should show 0 dB, and the load a negative value less than -20 dB (-40 or

I bought my nanoVNA-H4 back in 2019 and used it all the time for multiple purposes till early this year. One time i went to measure the SWR on a new antenna and the values were crazy and changing all

I just downloaded and tried NanoVNASaver 0.4.0 and unfortunately got the same outcome. Thanks to all who are considering this issue! VE6ATS

Try Version 0.4.0. of NanoVNA Saver. Version 5 releases have had numerous bug issues due to code refactoring. Roger

With a bit of quick finger motion I was able to capture the following from running Nanosaver before it disappeared from trying to connect and failing: NanoVNA-APP See

You need a good test jig setup if you want to measure up to 300 MHz. Could you post some pictures of your test jig and the cal loads you use for calibration? When you measure the impedance are you

I have tried 3 machines, a laptop running W10, a desktop running W10 and a desktop running Ubuntu. All have the same symptoms. I have also tried a couple of cables. After changing the cable using the

I have a similar issue with my SAA2 on windows 7. It's a driver issue I think. Runs ok on windows 10. Not sure how to fix it.

I always calibrate to the interface of the "vna/jig/cable combination" with the DUT because that interface is whatever circuitry the DUT is connected to will be seen as. E.g. if you are testing an

Greetings, Just as an FYI: There is a great deal of downloadable generic reference material from?Rhode & Schwarz relating to all things VNA.

The following events on the usb port my nanovna is attached to is causing the program to not connect: Faulting application name: nanovna-saver.exe, version: 0.0.0.0, time stamp: 0x632416e2 Faulting

The following events on the usb-port my nanovna is attached to is causing the program to not connect: Faulting application name: nanovna-saver.exe, version: 0.0.0.0, time stamp: 0x632416e2 Faulting

I have a Copper Mountain VNA in my lab at work, so I will probably try to get some generic advice from them next week, without mentioning that it's really for use with a nanoVNA at home.

Single turn. Tolerance is a good note, but my readings are consistently less than half the specified value. Unfortunately, Fair-Rite is the only company who has written anything about how they measure

I agree with Jim Lux. Holding the VNA in your hand is both simple and probably the most representative of the performance with an HT. In the olden days, the German VDE 0871 testing standard used a

What test fixture are you using? 1 or a few turns through the core? Note that these things have about 20% tolerance with respect to the datasheet values, too.

The parts I'm currently playing with are all Laird ( formerly Steward) 28 alloy, with the Z peaking in the 100-200 MHz region. The data I'm referencing is from their data sheets. I'll read through

What ferrites and where's the reference for them. Jim K9YC has done some fairly extensive choke testing.http://k9yc.com/RXChokesTransformers.pdf Mike W9MDB

I having fits trying to measure lossy "soft" ferrites against the manufacturers curves. Over the range 1 to 300 MHz, I'm not even getting close, looking at either S11 into a short or S21. I've tried a

My guess, the ISEC folks but radar would be very appropriate for InfoAge & Camp Evans. A lot of work was done there from WWII until the 80's (maybe the 90's). The makerspace used to be called IXR -