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Carlos, The 400mAh batteries that came with my two units have charge controllers built into the battery packs. Most certainly if you use a battery pack without a charge controller it will overcharge

Hmm, that wants updating. Latest versions should be linked in Wiki main page /g/nanovna-users/wiki

IZ5GVP, Go to this link https://oristopo.github.io/nVhelp/html/software.htm#firm for a list of NanoVNA programs that will allow you to plot and save return loss, VSWR and impedance data for your dummy

If you already have Python installed, then this script lets you send commands to nanoVNA and capture data directly to files from your cmd.exe or bash terminal window, without a separate serial console

Hi Maurizio - First send 'pause', then use 'scan'

According to the datasheet, the IP5303 charging current is 1.0A. I think the "adaptive charging current control, excellent adapter compatibility" refers to the capability of lowering output current if

That could work, but no pads on the pcb for the second resistor, and not sure if NanoVNA-Q-0.4.3 will allow sufficient vbat_offset, so I'll stick with the "BAV99 2 diode solution" for now. Life too

With BAV99 2 diodes and a fully charged battery set vbat_offset to 1000 and VBAT reads 4210mV on Version screen. Very nice - thank you very much :) After flashing and restarting the nvna I did

Thanks for your reply, However I am not trying to upload to the vna, I am trying to download the existing firmware for backup. The dfu-util man page says:- " -t, --transfer-size SIZE Specify the

Same for me Pedja, Tried on a virtual windows 7 machine (on my MAC) Gave up after a half an hour, and then tried on an old laptop, and everything is now ok. But when I tried again on the Virtual

I had the same issue and installing drivers did not help. Windows did not recognize device in manner that did not allow it to link it with drivers at all. However, device was properly recognized on

I have a lot of dummy load and i would make a graph to compare the return loss of all. With my older miniVNA i can get the data for each one because with VNAJ i can get out directly the return loss

Yes, you need to install the driver first. You can read the wiki for more help. Note that dfu-util and DfuSe Demo use different drivers. hugen

Thanks Hugen I think I have to install the drivers first because DFUSe Demo does not "see" my device...

Thanks Gyula Better to get, or make a dongle then..... Have a great weekend 73 de HB9IIU

Stm32f032 has a built-in BootLoader that can be updated without any risk. hugen

Hi Daniel, Can you read on my website when use ST-LINKv2 dongle : http://ha3hz.hu/hu/home/top-nav/12-seged-berendezesek/15-nanovna 73, Gyula HA3HZ

Hi What are the chances that I brick my NanoVNA when trying to upload a new firmware? What can go wrong? Or what does one to be very careful with? Daniel 73 de HB9IIU

This bug present in all firmware. It is related with numpad editor and numeric editor mode. You can fix it just by pressing joystick left or right. Unfortunately fix is not so easy, because it

gin&pez@arg 1) The pdf document you have provided and archived for us is written for a C++ complier. This document plus the subtitle of this post "combined fortran, maxima and gnuplot code for [errors