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The make up is one thing were the clones come in is the software and firmware that you cant make work or upgrade. ________________________________ Sent: Sunday, March 16, 2025 6:29 PM To:

they claim ALL (except their own) as clones ... but they are all "brothers and sisters", cousins ..? ... etc etc they all are made quite similar in circuit design dg9bfc sigi Am 15.03.2025 um

maybe the case is pressing on the touch screen? ... or the screen cable is not well fitted did you try to connect it to pc (example nanovna app)?? dg9bfc sigi Am 16.03.2025 um 23:31 schrieb

Sorry, it is indeed -H; but not '4' I'll try with differeny connection - thanks!

Battery is fine, 3.7VDC; checked at the unit PCB. And the screen is lighting up (white), so power isw not the problem

If I get you correctly, that is the "skin" current that gets radiated from the antenna as pure RF ? If so, that remaining common mode current is reflected back at the source and then "recombine" at

@Roger And @Dave, If I get you correctly, that is the "skin" current that gets radiated from the antenna as pure RF ? If so, that remaining common mode current is reflected back at the source and

This will download the updated S-parameter plotting program: https://tinyurl.com/bd8fde5t I was surprised to discover that the final Touchstone 1.1 file specification provides for multiple,

Thanks Brian, That link worked OK 73, Geoff

I seem to have gotten everything working. The plots show a 280 kHz Murata ceramic filter with an 82 pF load on its output. The dB and group delay curves are similar to those published by Murata for a

When you use a coaxial cable the RF current goes up and down the center conductor and the inner surface of the coax shield. The reason I say inner shield is that due to the "skin effect" the RF

ST-LINK info: /g/nanovna-users/topic/nanovna_bricked/34149616 wrote:

Geoff, this will download the program and documentation: https://tinyurl.com/bd8fde5t Brian

Brian, When I go to this link: http://ham-radio.com/k6sti/mu.htm I get the message that ham-radio.com domain has expired. Is the above link you posted correct. 73, Geoff - W8GNM

When you use a coaxial cable the RF current goes up and down the center conductor and the inner surface of the coax shield. The reason I say inner shield is that due to the "skin effect" the RF

Below is an update on the schedule of speakers and presentations for the Southeastern VHF Society Conference. The conference will be held at the Quality Inn at Exit #4 in Clarksville, TN April 4-5,

Maybe you have a problem with the battery. I would open the NanoVNA and disconnect the battery. Check if it is working. Use a meter to check if there is voltage coming out of it and what it is. Also

You wrote in the title that the unit is: NanoVNA-H v3.5 ? If you have somehow managed to wipe the bootloader (highly unlikely) your only choice left is to connect to the micro directly, using a

How to remove the stored numbers in the recall/empty windows

Thanks. Clyde - but my unit is not -H; I did try the BOOTP - VDD reset, no good, and all the other sequences mentioned. Nothing lets me connect to the unit via USB-C. I do appreciate the response.