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can one use a v2 hw and replace the pll chip (and use lite fw)?? are they pin compatible?? just thinking if i could replace that pll chip only (bridge performace and channel isolation is a different

Compared to the attached diagram, I always calculate the amplification as Amplificateion = Vs/E is this the case for S21 or is the result of : Vs/Ve I don't think it gives the same value -- F1AMM

Flawless. thank you very much -- F1AMM Fran?ois

I would assume that S21 is the pair starting with 0.487.. and 0.5028... one thing that is important is to check the header of the .s2p and see whether it is giving you data in dB and degrees, or as

NanoVNA s2p file contain: frequency S11 S21 S12 S22 211618 -0.6282719521724260 0.48020111742544200 0.48752110556607600 0.50280646366029200 0 0 0 0 But this depend from snp file format see

Thank you but I want to start from the values in the .s2p file Starting from a .s2p file coming out of nanovana-saver, I have for example 211618 -0.6282719521724260 0.48020111742544200

S21 is typically given in dB magnitude plus phase, so gain would be 10^(mag/20).. If you have S21 as a linear complex value, then the gain is just the magnitude sqrt(a^2 + b^2). Phase is atan(b/a)

Hello I succeeded in establishing the formulas to pass from the parameter S11 (a+jb) to the true impedance (not reduced) Z=A+jB I would like to find the gain (linear, not in dB) from the S21 parameter

I use this calibration setup: http://www.archaeocosmology.org/eng/baluns.htm#Calibrating and for measuring the DUT: http://www.archaeocosmology.org/eng/S21S11.htm#Calibration_plane: Op wo 22 mrt 2023

One picture would be worth a thousand words. Thanks,? Doug, VA3DKA -- */

I was meaning to update firmware on my TinySA. Thought I had TinySA plugged in, when it was actually the NanoVNA. The firmware update did work, but not sure I have two working TinySA's...lol. I

Yes, end to end at the end of your transmission line, the free ends going to a ground plane surrounding the end of the line. Think of a baseball diamond, the transmission line runs from home base to

I do not have a photo of my S21 jig. Basically it is a 50 ohm strip line with SMA connectors on both ends. The stripline has a break in the middle. Pin jacks near the center are used to accept the S11

Comments relating to recent posts: 1. @Roger do you have a photo of your S21 jig? (By the way, I initially thought your S11 jig was copper sheet with a non-conductive backing board to attach the

No, I meant 180. 1nanoHenry at 450MHz is 2.83Ω, which is fairly significant. 0.19Ω at 3.0MHz. It all depends on your frequency and your application. 73, Don N2VGU

See the Absolute Beginners Guide in the Files section of this group. Roger

Hi again. Can you help me with this: I have set stimulus for resonance, between a set of frequencies, and it works ok, but, I am getting confused how to save it, after switching of !

Thanks. In some instances I may need a standalone, like tuning an antenna, traps , end z etc . Much appreciated

Depends on what you like doing for fun, doesn't it? I *like* designing things and seeing them work, and going through the iterative process of optimizing the design. For years, that's essentially what

Fair enough. Sounds like rather than design my own mods I'm better off with a LiteVNA 64