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Will do. I just did a 80--10 meter sweep of my 80-10 EFHW with 12801 data points on the PC app. Wow! The Smith Chart and SWR show why the EFHW is so popular. SWR <= 2:1 over the whole range!

Hi Chris the screen shots show the correct driver and the correct hex in the uart, plus the QT version using the same set up always connects as does the app from 1 of 11. This tends to make me think

I had something similar happen... Once windows decides the type of device (right or wrong), it assigns a driver. Often, when you try to load the correct driver, windows will insist it already has the

Further the COM3 port allocated when nano is connected details show as ports\VID\04B4&PID_008 joe

Using device manager and connecting the vna unit aUSB to Uart adapter shows up usb\vid_04B4&PID_0008&REV_001 usb\vid_04B4&pid_008 is this what you mean?

Think of it in golfing terms. It's like trying to putt with a 'mashie'. (personally I prefer a #2 wood to putt) Mike C.

Lighten up, I'm an old F*** but names don't bother me. I'm just P when somebody steals my marbles. :0) Mike C.

NanoVNA Saver search for this USB devices USBDevice(0x0483, 0x5740, "NanoVNA"), USBDevice(0x16c0, 0x0483, "AVNA"), USBDevice(0x04b4, 0x0008, "S-A-A-2"), you can see this in device id (details):

Upon checking the link to ST driver is version I already loaded. I double checked the addition of USB port when nanovna connected. this is before connection and this is after connecting nanovna

You say wrong port, but same port number works with QT version and app from one-of-eleven? same driver. I just grabbed st driver from web and installing now cheers joe

Anyway you use wrong Port (this for USB to TTL dongle) Find from

My nano vna states SAA-2N,? HW version V2_2?? manufactured by Zeenko if you need other information please state where to find it joe

Just for understand - you mean NanoVNA-H or H4 ?? Not V2 model? My last post for NanoVNA-H or H4

I see CDC to USART adapter - this not NanoVNA port NanoVNA port must have name Driver: https://www.st.com/en/development-tools/stsw-stm32102.html

Hi DisLord, thanks for coming back to my shout for help I installed the nanovna-save on win10 no problem, but I wanted to use an older laptop using win7 and that will not connect to the allocated USB

Remember, the difference between “accuracy” and “precision” is important. Accuracy has to do with the degree to which an instrument can determine a measured value compared to the actual value,

I suggest you read the Absolute Beginners Guide in the Files section of this group. Also check out the group Wiki. Roger

Thanks Robin, vy 73 Jens Am 20.12.2021 um 12:56 schrieb G8DQX list:

Thanks for the response will let you know the outcome Earle D Wilkinson (6Y5EW) Home page: http://jamaicaham.org/ Email address: earle.wilkinson@... Echolink: 6Y5RA

I just obtained mine, so forgive my lack of knowledge. I thought it only had 100 data points? How do you scan a wide range? But, I just read you can do this if it is connected to a PC using the