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Hi Alan, I am interested. I do not know how to contact you off line, therefore my answer here. Kind regards Matthias www.dd1us.de -----Ursprüngliche Nachricht----- Von: [email protected]

Good morning to all you good folks on this forum; I bought it on Aliexpress and it's dubbed "S-A-A V2 Pro 4 inch GS-400" Worked fine for a number of years. Foolishly attempted to update FW to try to

A 100 + page text with examples and data. Not available on the net. From a Motorola Design Course, semiconductor division. Interested, contact me off line. 73' Alan

Found one for $8 refurbished and guaranteed for 30 days.

Thanks Jim, IT is a combination DVD-CD drive. According to my Service Manual it is HP part number F4640-60937 319422-001. Al

I have a box full of NOS laptop DVD drives if you need one. Mostly SATA but a few PATA as well. 73 -Jim NU0C "Al Waschka" <awaschka@...> wrote:

Thanks Martin, for the update, and your attempt to help this NanoVNA noob. I did not watch the full boot sequence. When I tried to load Greml again after trying to load a Debian live distro that

Sometimes I question my sanity - this thread is such an example. Before I recommended grml, I picked up my grml32-small CD and booted my laptop; typed "dmesg -Hw" and plugged in the NanoVNA-H,

Not to be captain obvious, but on your nanovna calibration, did you reset cal first and click done when finished? I easily forgot and made this mistake early on and got weird results. Bryan , N0LUF

I thought I might be able to see something in dmesg, as it worked before when I finally got grml-small loaded after several tries. Unfortunately I tried to load a better Linux distro but the CDROM

Also "lsusb" can give a hint if the device was recognized.

You can run "dmesg" alone and see what you see, then plug in and run it again, and if it saw the device, it will be at the end of the display, past what you saw the first time.

Distro is very limited. Doesn't have -w either. I give up on Linux. I can't get the CD drive to load anything else or even to reload the Grml-small I had on there to begin with. I received my USB-A

You can still see what is going on without the "-H" option, the output is just a little less clear. Basically, run "dmesg -w", and then plug the USB device in, and you should see the system react to

Thanks, I was wondering if that was the cause. I just picked up my ipad to check the syntax but saw your message first. Greml small was suggested so that is what I loaded. I am running on an old xp

Looks like a distro with crippled dmesg . . . . the man page clearly states "-H: Human readable output" and "-w: wait" so the options *should* be valid.

Actual response is Invalid parameter, I think

Hope this isn’t considered off topic. It is about troubleshooting a NanoVNA. Finally got the greml distro working. When I enter the string you suggested it says -H is unrecognized.

You nailed it. I was looking at S11 phase and not S21 phase. Thank you! John W1FV

Lawrence, The dfu_util command works exactly the same for NanoVNA-H and -H4 as for tinaSA and tinySA Ultra. Both families use exactly the same STM32 processor (the small STM32-F072, the larger