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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

You can absolutely measure at one impedance and display at another. Most comprehensive Smith chart programs allow the user to ‘change the center of the chart’ to any impedance. You can just import

I am of the practice of ALWAYS doing a calibration. This comes from many scars of debugging ‘unexpected’ results which, ultimately, turned out to be calibration problems. Calibration just

NanoVNA is intended as a gateway between measurement and analysis/integration endeavors. If nanoVNA saver is sufficient for your purposes I suppose you should stay with it. I wrote nanoVNA connect

It wasn’t a hard choice. Should Ii have you download and install the software before you have an idea what it does.... or should I show you what it can do and then, if you’re interested, have you

In starting the cal process, it is assumed you have previously set the desired frequency range. Dave - W?LEV wrote: -- *Dave - W?LEV* *Just Let Darwin Work*

On Thu, Jul 15, 2021 at 09:27 AM, Jim Lux wrote: Very helpful -- however when I do a calibration with nanovna-saver's tool it does not ask for a frequency range when starting the process -

And they have a bridge! :-) wrote:

SimSmith is a simulation program with a completely different purpose. wrote:

Reasons to recalibrate (as opposed to use a saved cal set): 1) A different test setup, where the "reference plane" for the measurements is different.? For instance, if you have test port cables with