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Hi,i tried using teraterm on my vna,it connected ok using com 19,i ran learconfig 1234,now it wont connect to my pc,terraterm only sees com 1 not 10,the stm32 bootloader tab in device manager says

Connect it via USB and open the serial port in a terminal program, bitrate etc. is not relevant. Type e.g. "help" to see the available commands.

Do i need to connect it to my pc,if so how,i see no guides for doing it.thanks+73

I have two other nanoVNAs but I find myself reaching for the SAA-2N most often. The calibration kit and cables provided are of good quality and have held up (so far). For higher frequencies I have a

many of the models can be easy improved (lower noise above 2 ghz with just some decoupling caps added) .. i bet yours is similar :-) dg9bfc sigi ps welcome in the group of fancy smith diagramms ,

I have the H H4 SAA2N and the F models and use them in different applications. If you intend to use it outdoors I strongly recommend the F model with the pushbuttons. It has the brightest display

Hi, I just got my SAA-V2 clone 3.2" "black and gold" (info link https://nanorfe.com/nanovna-versions.html) from ebay. I'm very happy with it. Cost less then $100 and cover up to 4GHz can also measure

Welcome to the group, Nuno. Do take a look at the Wiki: /g/nanovna-users/wiki Whatever you get, buy from the original manufacturer if at all possible. Avoid clones! I have several

Hi guys, this is my first post here, I would like an advice to buy a new VNA, my main operation is till 50MHz, but eventually I can operate till 1.2GHz, what would be a good VNA to buy, H4; F; SAA.

I have. Luckily it was still within the return period on ebay

So far I haven't seen any incompatible clones of the Nano H or H4. Maybe I missed some ...

Yeah, derivatives do accentuate noise - but sometimes that's actually useful to spot a discontinuity in a system that should otherwise be "smooth" And when you have multiple resonances, is makes them

Make sure you are taking frequency steps that are small wrt to the DUT bandwidth. GD on a xtal filter is one example.

. . . and far, far, less portable (IE not an option for all, unlike Cube) . . . -- Sent from my Android device with K-9 Mail. Please excuse my brevity.

Jim, your comment inspired me to add group delay to my program. I don't see its relevance for ground probe data, but it provides a powerful diagnostic tool that can reveal anomalies otherwise

The STM32CubeProgrammer is good, I like it but, the app is more problem free... did You saw this topics? /g/nanovna-users/topic/100723284

While that is technically true, its only possible if you either made a backup of the firmware on the unit prior to flashing the new firmware or were able to find the firmware originally on the unit.

These things can't be bricked, in the worst case scenario you would need a $2 ST Link clone to flash the firmware.

Me as well. I have 2 desktops Both running windows 11 One is a custom built amd gaming system and the driver did not work. The other is a customer built intel system functioning as a file server.

I've just been down this road, encountering many problems. My environment is MacOS Ventura 13.5 on a Macbook Air M1. I also run Windows 11 in a virtual machine with VMware Fusion. I could never get