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I am not using it but I think DiSLord firmware annotates the save buttons. Roger

I really with we could rename the Save locations, Save 0 = “7 MHz” for example, Save 1 = ....... -- Regards, Chris K2STP

This alalog of this calculator: https://www.leleivre.com/rf_lcmatch.html Allow compencate current impedance to 50Om

Can anyone explain to me how to interpret all the figures displayed when the "L/C MATCH" tick-box is ticked under Display/Marker/Smith Value - and how it can be used?

Thank Bill for this post. I just managed to update my H4 successfully following your procedure. In my case I installed Homebrew natively to my Mac, followed by the installation of Dfu-Util. I then

Hi Clyde, I would like to bring to your attention my website where you can also read about possible applications of NanoVNA. Android programs are often called applications, here NanoVNA-App v1.1.xxx

Hi Leighton, In your first post, you write that your firmware version is 0.2.3, which was released in early October 2019. From this, I think there are probably possible hardware bugs. What I mean?

You're not alone. My 50 Ohm load went bad after a time. Fortunately I had already purchased a couple of gently used Mini-Circuits loads from W5SWL by that time because I wanted a couple of spares. 73

I should have checked my SOL terminations - I didn't really consider them as being a problem. It appears that my load is no longer a load. Thank you all for your input - it is much appreciated. I am

Actually, even if the screen is non-functional, I think you can still runn the unit headless through the usb port and using NanoSaver or OneofEleven's great application, NanoApp.? On Tue, 8 Dec 2020

I will take the unit apart and check the cable.? The last only works when the screen comes up! Mel, K6KBE

Not plugged it into the PC yet will try that, Thanks. Mel, K6KBE

Also, was the unit exposed to any vigorous vibration or temperature changes? You might have a cracked solder joint where the LCD flex ribbon connects to the PCB under the display. A few other forum

Mel, If you turn on your Nanovna and connect it to a Windows PC, do you hear the usual tones to know that the PC recognised a usb device? When you turn your Nanovna on, do you see one LED flashing?

Hi Piero, Yes that is the firmware version I am now using. The firmware I tried, which has the menu selection to connect either using USB or Bluetooth serial, was version; NanoVNA H v1.0.39.dfu. This

Yes Stefan, No connection other than the 10 K from BOOT to ground.? I went out and put a short to ground on the BOOT and switched it on, NADA,? Something else. Mel, K6KBE

Hello Clyde, is the firmware NanoVNA-H- UART.dfu you are using the same that I am using and that was created by Dave VE3LHO (https://github.com/DaveLapp/NanoVNA-H/releases) or something different? In

Hi Mel, the connections in question can be identified as follows: 1. Once the unit is opened up, turn it over so the screen is down, with the controls at the top. 2. On the left side you see a row of

Hi Walt, My NanoVNA H did not have the Bluetooth originally. I installed it myself. I have also installed one in my friends "H4" at his request. He is just waiting for the software to catch-up. Even

The comments above apply to the NanoVNA-H, NanoVNA-H4 and NanoVNA-F. Some of the newer NanoVNA products do not have interpolation when you change frequency so they always require re-calibration or