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HELLO ALL As of July 16th: I gave the Nano VNA talk in two installments to the Leicester Radio Society (UK) but I did not record it and I did not post it. I'll contact the person who did post it and

NanoVNASaver also uses heuristics for NanoVNA V2plus4: https://github.com/NanoVNA-Saver/nanovna-saver/blob/b0a21bc164bc23a64f368a8f86b8faf1cc4a9969/NanoVNASaver/Hardware/NanoVNA_V2.py#L150 this might

thanks, DiSlord. Once I changed bandwidth to 4kHz on NanoVNA H4 then SimSmith connects/interacts with the device. I tried both 101/401 data points and both settings are okay. Still no luck with the

50 ohm PL259 O239 connectors are readily available. Agree that if the discontinuity is very short compared to a 1/4 wave it make little/no difference. Going from a 50 ohms, through a 30 ohm PL259, and

I can connect SimSmith vs my NanoVNA H4 SimSmith use old data exchange format, and not allow get data if set low bandwidth setting on Nano (need more big timeout)

Look at W2AEW YouTube channel I think he did a video on this. 73 Fred KB4QZH

Very easy - cal the vna, hook up your coax, look at the *phase* of S11.? Cut until the phase is zero degrees at your frequency of interest.? Your cable is a multiple of half wavelengths. 180 degrees

Forgot one important note. Trim the coax stub until the dip is at the desired frequency. *Clyde K. Spencer*

You can try this process. [image: image.png] *Clyde K. Spencer*

I have used NanoVNASaver and SimSmith earlier this year to construct the output matching network of a DIY BS170 small signal amplifier. This required constant switching between NanoVNASaver (to

Hi guys Wonder if you can acctually cut an exact 1/2 wave coax for a given freq without getting VF and math usong nano VNA. It woukd be very useful when making 4:1 balun with better accuracy rather

It looks like the file in that One Drive folder has been deleted. It was good when I downloaded it yesterday. I have a copy of it on my hard-drive but it's almost 3GB. Too big to email and I don't

I had the same thing happen wrote:

Hi David, I had a similar problem and used the SMA to PL-259 and PL-259 to SMA adapters. I guess you know that the PL-259 connectors are no where near a 50 ohm environment (around 30 ohms I think).

It's all about "length vs wavelength" so.. a cm or so of adapter against 10m wavelength? Not going to make a big difference at HF (1cm is 0.3 deg of phase at 30MHz) I use a SMA to SO-239 pigtail about

I apologize, I meant to say it WAS A HARD CHOICE, not that it wasn’t. I don’t want to come across poorly. Thanks for understanding Ward ae6ty

I started watching the video this morning and made it through the very basic but good explanation of smith charts; then I ran some errands and started watching again and after 5 minutes the video

This is a timely thread as I just received my -F this week. My HF antennas all have PL-259 connectors. To connect them to the NanoVNA, I already have SO-239 to SMA Male (like these

Lay off the griping and make the measurement in a 50-ohm system. With that, you'll learn how better to use a VNA. Grumpy: Dave - W?LEV drkirkby@...> wrote: -- *Dave - W?LEV* *Just

It can be, and that's the most sensible thing to do. Dave