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When the H4 first came out the case was too tight and pinched the screen. Then touch input was erratic. Try loosening the case screws and see if that works. If it works you can open the case and

Have you tied Clear Config? Roger

Hello I have a H4 (HW Rev. 4.2). I read the newbie stuff and i think i understand the fundamentals. (I also read Dislords firmware update notes) When i got it, the firmware was 1.0.39. I installed the

@Rich: as it has been discussed off line - in case the Cable calculation (phase method) depends on the velocity factor and the exact frequency of the phase jump only, the limiting the freq range

I bought this for Christmas abut 1 1/2 years but was too busy to learn how to use it. I got it out today after my new TinySA arrived today, and tried to learn a few things. But the Control Knob will

Hello everyone in NanoVNA land Newbie here Having trouble upgrading firmware from v0.2.3-2-g8ac9166 date of the build was oct 18, 2019 to the latest firmware. I am able to enter into DFU mode from the

Hello everyone in NanoVNA land Newbie here Having trouble upgrading firmware from v0.2.3-2-g8ac9166 date of the build was oct 18, 2019 to the latest firmware. I am able to enter into DFU mode from the

Vince, In addition to reading the Beginner's Guide, please refer to the forum's WIKI page. There is a lot of info there that points to message threads that cover questions already answered over the

Roger, Thanks for the link, and I will check out the beginners guide. vince

On Thu, Jun 2, 2022 at 03:30 PM, Vince Loschiavo wrote You can use the latest firmware by DiSlord for your -H. make sure you download the -H version (not the -H4). It is available at this link....

Hi all, newbie, I purchased from a local my NanoVNA-H has version: v0.2.3-2-g8ac9166 date of the build was oct 18, 2019 so I don't brick this OG, what are the chances of updating the firmware to

@igor-m: that happens when you do not calibrate the specific frequency range prior the Measure->Cable (calibration made directly at the S11 connector). I've tried here with H4 and v1.2 flashed in

Hi Dislord, I posted 2 messages yesterday but they were not published here (no idea why). Also pictures did not pass through. H4 v1.2 (built form sources): It was my bad - I forgot to calibrate the

Ok, my bad, I did not calibrate the range before the cable measurement, now the H4 measurement shows Z0=49.71ohm and length=162mm. Fantastic!

Your picture shows you do with 51 points. Did you try with 101 or 201?

Et voilà Roger, thanks to you !! 73's jean Marie F5VLB

I flashed v1.2 last night. Using cal from 2.5-32.5 MHz, 401 p. Changed freq range to 3-5 MHz I have 3X RG316 3660mm 4580mm 4580mm One connected M-F, and the other connected M-M, for a total length of

Thanks for the link, Roger. I'm going to try using it with NanoVNA App. If I feel adventurous, I may try fixing the screen. Thanks for your help. Perry [email protected]> wrote:

Thank you Roger, my friend F5WK Michel followed the procedure and all is working for him. Will do the same today. Regards Jean Marie

The following files and folders have been uploaded to the Files area of the [email protected] group. * /user manual and menu maps/nVNA-H4 v4.3_MS firmware 1.2 menu map 0100 AN14.zip (