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See https://www.youtube.com/watch?v=KmKQibSDzqM This is a Fair-Rite engineer showing how to measure a ferrite core. At 48 seconds he shows a clever test fixture and describes the calibration. 73,

I meant 'connect the nanovna to only the outer shield. Connect one vna cable conductor to each end of the coax shield. I think you cod measure the impedance this way. Also use the instructions in the

Thanks Roger - that's useful to know, and it's good that Touchstone files can be exchanged between Saver and App. However, once I'm in the business of exporting files there are a number of other

Peter, Unfortunately the NanoVNA-F does not work with NanoVNA app because it does not use the DiSlord communications protocol. However you can export a Touchstone file from Saver and import it into

F[image: image.png] or leaded components, the above might do within "reasonable" frequencies: wrote:

Hi, I'm looking for a test fixture for my VNA in order to test smd & through hole resistors, capacitors and inductors, at RF frequencies (< 450MHz). Looking for their reactances, values and resonances

Hi Doug, I'm unclear about your suggestion. "That is, one Nano terminal, the center conductor of the Nano Port 0, to one end of the ferrite's cable, and connect the Port 0 outer conductor (the shield)

I think it would work (be possible) by connecting the Nano to only the shield of the test coax. That is, one Nano terminal, the center conductor of the Nano Port 0, to one end of the ferrite's cable,

Thank you for the suggestion, Roger. I've unpacked NanoVNA App and run it. It does indeed look to have some potential but unfortunately the comms to my Win 10 laptop is timing out, despite apparently

My unit has not only a "Reset", but also a "Reset All" selection. The Reset All is what I used. I always use the "Reset" before calibration so it didn't help any.

Peter, I suggest you try the NanoVNA App by OneOfEleven. It has much better s

Just open a new issue on Github and hope it's addressed. https://github.com/NanoVNA-Saver/nanovna-saver/issues

see also this https://github.com/NanoVNA-Saver/nanovna-saver/issues/429 Apparently, *some* NanoVnA type devices do have a firmware problem that can cause this. "The current NanoVNA Saver 0.3.9 Windows

Yeah, it's probably a good "feature request" for NanoVNA-Saver - I'm not sure how that process works in practice. https://github.com/NanoVNA-Saver/nanovna-saver It looks like several people are making

Check your USB cable De K8HTB Joe

Thank you for the clarification Jim. I'm surprised it hasn't surfaced as an issue before. It was no big deal in practice because I simply exported the two-port files and plotted the graphs with other

On 10/29/21 8:13 AM, Jim Lux wrote: > On 10/29/21 7:35 AM, Peter Hall, VK6HP wrote: >> Hi everyone, >> >> I've recently been building some crystal notch filters in the region of 11 MHz.? To

it looks like it is using round to do the tick calculation, so that

True.. You might check if the device is showing up in MacOS (with the Windows VM not running). Should be a /dev/cu.usbmodem{number} You can also do a "screen /dev/cu.usbmodem" in terminal, and see if

Hi everyone, I've recently been building some crystal notch filters in the region of 11 MHz. To characterize the filters I use quite a narrow frequency span, typically 10 kHz or so. The exact centre