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Hello Roger, Op di 31 mei 2022 om 19:40 schreef Roger Need via groups.io <sailtamarack= [email protected]>: It is not me but

Roger, It now shows in Device Manager. The screen is still while but I can connect with Nanovna Saver and calibrate using the Calibration Assistant. Do you think it's usable when connected to the

The measure feature works well...from the user manual 1.2.5 MEASURE 3. CABLE S11 Choose a frequency range such that the cable length is ~1/4 of the wavelength in the middle of the range. This feature

I do not own a VNWA so I have no first hand knowledge to share. From what I have read it has better specifications than a NanoVNA. You could join the VNWA group and pose your question there...

Hi Roger: Thanks for your comments and focus on dispelling the notion that S11 with nanoVNA might be inappropriate for high(er) impedance measuring. Re: “The intent of my post was to reply to

Hello, Being a past bata tester of FW for this unit, I have dealt with your problem. The way I cured it is as follows: First shut down the NanoVNA. Remove the back cover. Using small tweezers or what

To Roger: Thanks for your comments. Consistent with the physics involved. Ed McCann AG6CX

You posted that you cannot see it in Device Manager. Can you see it in DFU mode? This will require opening it and shortening 2 pins. Roger

Example: Cable length measured in M1 point Impedance on M2 More points in this range - better measure quality

Set start frequency more low (cable impedance measured on half frequency from point then smith rotate on 180 degree)

Heck, it's confused with NanoVNA-H (4). However, it can be read that it is a 2.8 "-H shipped with this firmware. As Roger Need wrote, the firmware needs to be updated. If you haven't already done so,

Where did you vind v. 1.2? I can't find that anywhere. Zack W9SZ

Just took another look at your console output. Your firmware is over 2 years old so you need to update if you want to use the NanoVNA app Roger

What version of H4 firmware are you using? The NanoVNA app uses a binary protocol to transfer sweep data. This is different than the old ASCII protocol that was initially used by the NanoVNA. If your

Ed, Yes most antenna analysis is done using the serial R+/-jX form for impedance. However as Jim Lux points out in another post today ( /g/nanovna-users/message/28231 ) there are

Does nanoVNA-Saver work on your machine? I can see that win7 sp1 is running. To run Saver, I need some things that I described in a pdf file. Link:

When dealing with a single feedpoint, working with impedances (and a series formulation of R+Xj) is traditional - it maps well into VSWR, etc. However, when working with multiple feedpoints, or

Roger: I’ve always thought of the conventional antenna parameter measurement as the antenna being in series, i.e., Z load = Zs = Rs + Xs Cebik notes that, with respect to modeling and looking at

Tried this and still just a white screen. I guess it's bricked. Thanks for all the responses. Perry

Dear, I have a problem with the NanoVNA-H(4) and NanoVNA-App I can connect it on com5 but it does not read the data and mention always a number of points error Does someone has a trick to solve this