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Yes, it can when using PC and at least SAVER. Store the cal file on the PC for later use. Dave - W?LEV -- *Dave - W?LEV* *Just Let Darwin Work*

Here is how the PCB layout changed between 4.2 and 4.3 in the power supply area. Roger

There were quite a few changes to the voltage regulators from 4.2 to 4.3. Roger

It automatically loads slot 0 cal data on the most NanoVNA models. IIRC some versions of firmware can recall the last configuration used. Roger

Can this be done? I have sometimes forgotten to load the file. Chuck

Here's a pic of one I got from R&L recently 73 Stan KM4HQE

Yes no problem at all I will get some pictures, this is the V4.3 with SI5351, There is another version which is has a MS5351M which is V4.3-MS, but I do not know if that one has other changes.

I'm sure it will. If you are able to, please post the images of the board. Thinking about getting one just to see if the changes around voltage regulators on the 4.3 version are significant compared

All, As I posted before, we have sufficient funds pledged to pay the groups.io fee for 2022.? The response, in under two days, has been overwhelming. **Further pledges are not necessary**. We will

I just received another NanoVNA for the collection, a NanoVNA-H4 Genuine, V4.3. And this one came with a STM32F302CBT6, 32Khz clock xtal and also SD Card slot with cutout. I'm curious to check this

I am going to terminate this thread. I will start another one for payment detains in a day or two. DaveD

Thanks, Larry, that's a nicely written guide.? I didn't know of it and used the nanovna.com web page and some of Alan w2aew's well made videos.? I use RF test equipment nearly daily as part of my

Mike, The Config menu has a system reset (Clear config) in the Expert Settings.? You might want to try that then go through the cal process again.? If this is the first time you're using a Nanovna,

You cannot just put an arbitrarily-large attenuation after a VNA port and expect reasonable results. Roger Need's suggestion of 20dB is about as high as I would go; keep in mind that the round-trip

Hello... a suggestion, given the number of active users, could you provide a suggested donation amount...? Thanks... -- 73, Greg KC9ZEW

Thanks, Larry.? I did go through the steps you described.? (You can even see in the screenshot from before that I had recalled settings 6.)? After dinner, to be sure, though, I ran through the

You'd measure it (today) with a VNA, making sure that you pick a drive level that's reasonable for the receiver (i.e. if your receiver input can only tolerate -50dBm, then better not put -10 dBm in).

Jeff, Yes you can measure the input impedance of an HF receiver with your NanoVNA but you need to be careful you do not overload the front end. The output of the NanoVNA is around 0 dBm which is too

It should work ok, but make sure your receiver can tolerate the input

Check out W2AEW testing the input of an amp. with a nano: https://youtu.be/7TtKE39TWp Hope this helps. Richard, K8CYK wrote: