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Here's a nanoVNA-H measurement of a Micrometals T50-6 powdered iron toroid with 22 turns spread over about 270degrees of the toroid. The inductance should be about 2.2uH and you can see the nanoVNA

Do you import the s2p from the NanoVNA then to analyze and plot? Gary W9TD

I'm using Eagleware Genesys. This is old RF CAE software from 2004. I've had my nanoVNA-H for quite a while now and measuring the inductance of coils across LF through about 50MHz is what I mostly use

Hi all, My name is Phil, and call is GU0SUP. I am a new user of 2.8" nanoVNA, and I can calibrate it fine using the screen. However, when I start nanoVNA-Saver,set the start & stop frequency limits, I

Jmr What are you using to make your plots? Gary W9TD

To test out my nanoVNA-H over LF to about 50MHz I dug out a SMD airwound inductor of just over 240nH. I measured it in three ranges and stitched the results together to allow a log plot from about

when the Nano VNA (connected to Nano Saver) first powers up, the sweep is 50KHz to 3 GHz. I have an antenna connected to port 1. I change the sweep to 900 to 930 MHz and click on Set Reference Sweep,

I can calibrate my VNA manually, but I would prefer to calibrate using Nano Saver with my PC since the manual version does not include Isolation test. When I have completed short, open, load,

Thanks to everyone's input - I was able to get things sorted out. I actually tried both methods (Back to Back Method - thanks to Gary and the resistor method - thanks to Roger and found reasonable

Ariel, That would be satisfactory but your test fixture looks like ground is connected between inpuy and output anyway so connect to that grounds Gary W9TD

Channel 0 is the source of RF energy. Channel 1 is the 'sink' or receiver of that RF energy. Any 'source' requires a return. Without a return, it's just a conductor flapp'n in the wind. What is

Gary W9TD Thanks for your input - on that. The grounds are together but not connected to any of the grounds. Should I connect it to the CH0 ground? Thanks Ariel NY4G

No problem Manfred. I have two of the old Boonton Radio Corp Q meters. HP acquired Boonton and continued the line with the hp4342 which is still in use where I worked until last June. Here's the

Ariel, oops! Sorry for changing your name...! Silly fingers...

No, I haven't, because I don't own any of those old meters. At work we did have a big HP VNA that went up to a glorious 13MHz, but I didn't have a NanoVNA to compare to that, in 1990... I normally

Arien, It actually looks quite right to me! I wouldn't expect anything else. The parasitics of your system (stray capacitance of those large windings, series inductance of the long connection wires,

Thank you Garry for the explanation. It is clear now. Slawek SP9BSL

Ariel, I cannot see for sure but the common ground off on the left side doesn’t look like it is connected to NanoVNA ground. It needs to be. Gary W9TD

Slawek, The inductance is in series with the capacitance and as you approach series resonance the net impedance drops and if it is still below the resonance, the effect is a lower capacitive reactance

Manfred, Have you ever compared the Q readings measured by the old BRC-160 or the Hp 4342 Q meters against the Q reported by any network analyzer or even many of the older 4 terminal instruments from