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All three plots below are for renormalization from 50 to 330 ohms. Red used the forward and reverse measurements while blue is forward only and green is reverse only. The "only" measurements set S12 =

You should try NanoVNA Saver or NanoVNA app.

is there a beginners guide to connecting your nanovna-h to a pc? It may not be as simple as I am thinking. I have a nanovna-h edy555 ver 0.4.5-1 efbbceca when I connect it to my pc it shows up as

Hi Brian, Thanks big time for sending me the .s2p renormalized file. As a reminder to everyone your renormalized curve used my original forward and backward measurements of my ceramic filter using a

Hi Brian, Can you post or email me the .s2p file for your renormalized curve (red curve). I want to overlay my curves I obtain with resistive matching. Thanks, Don (wd8dsb)

VNA is the wrong tool (coherent detection depending on harmonic structure, and with a single detection bandwidth). Use a nano Spectrum Analyzer

All of this begs a simple question. Use the NanoVNA as a Field Strength Meter. Why - Just built a new antenna using the NanoVNA to adjust it to the operational Frequency and adjusted the impedance for

I forgot to mention that initially NanoVNA-App would not load the renormalized .s2p file. I had to manually change R 330 to R 50 in the # line to get it to load. Before I discovered this, I used

The plot compares S21 of the forward 50 ohm file with S21 after forward and reverse were renormalized to 330 ohms. Stopband details of the renormalized curve differ from your earlier curve using a

Hi Brian, Your wish is my command. See attached .s2p files for my ceramic filter with 10 pf load connected direct to NanoVNA-F ports tested forward and reverse connected. Note: I set my NanoVNA

Don, how about measuring the filter with a 10 pF load using no impedance matching (50 ohm source and load). Reverse the filter, measure again, and post the two .s2p files. I'm curious what my program

Hi Brian, I repeated the tests but this time using resistive matching pads to provide 330 ohm impedance to both the input and output of the ceramic filter versus using my very broadband transformers

An update, was able to update to Version 1.2 still not able to direct connect to any of the PC apps

I will try that next time! 73 Jon, VU2JO [email protected]> wrote:

? Use S21 mode with an amplifier. People have been using VNAs as radars for years. The NanoVNA just makes it easier. Dealing with the big first reflection is tricky. One way is to use a separate

Thanks, Don. Your filter shows much more response variation with a capacitive load than the 230 kHz filter in the Murata curves. I don't think anyone adds capacitance on purpose. In the past I have

Hi Brian, I went ahead and tested the filter response using a 10 pF, 33 pF, and 68 pF load capacitor. Attached are 3 plots and the reference plot on each of the attached plots is when I'm not using

OS is Win 11 Pro I've changed USB-A/usb-c cables that was the first issue. I connected my phone to this cable and saw data, I believe the cable I'm using can communicate with the NanoVNA. I'm not

Hi DiSlord Thank you very much , long press by touchscreen on M1 marker and all become OK , I discover the long press functions Now Hi Hi Thanks again. 73's Nizar .

You select Start frequency change from leveler (click on start frequency at bottom) Click on M: xxxxx Hz at top for select marker move mode