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My NanoVNA-H uses one Windows driver for a standard serial interface and a different driver when updating firmware. The NanoVNA-H uses the STMicroelectronics Controller. The standard serial interface

Thanks all for the help and confirming my understanding. It did appear that Bead 1 provided the largest increase in impedance consisting of a small real component and a somewhat larger amount of

Hi, If you don’t get enough help here, your device also has its own group. Please log in where you can also contact the manufacturer with your question. Link: /g/nanovna-f/topics

Example for $ls -al /dev/tty* crw--w---- 1 root tty?????? 4,? 8 Nov? 8 08:17 /dev/tty8 crw--w---- 1 root tty?????? 4,? 9 Nov? 8 08:17 /dev/tty9 crw-rw---- 1 root dialout 204, 64 Nov?

Is the username (you are logged in as) a member of the "dialout" group? If you look at /dev/ you can probably find it, and see the permissions for the comm port.? Typically, serial ports (and

Hello All I am trying to get vna-qt program in linux to connect to my SAA2. I have loaded the software into my win 10 machine and it works fine with the vna. I have vna-qt running in ubunto linux but

Make sure your device is turned on. When you plug it into windows 10 machine, does the plug-and-play capability recognize the device (it shows up in the device manager)? Once that happens, then start

Hi Joe, Okay, this is from the first production. Be sure to remove the cover, because if the touch screen is pressed anywhere, it will not work properly. Although other mistakes are possible,

Of those three cores, obviously #1 is the material most suitable for the task. But a single turn will give you some usable EMI suppression at 2MHz only in an extremely low impedance circuit. For most

Kent, your grandad, according to your qrz.com bio, was an interesting chap. Terman has next to nothing to say about toroidal inductors. A modern ARRL (or RSGB) handbook has rather more familiarity,

Well, common sense would suggest that the greatest increase of impedance is ferrite bead one. I would have thought that winding, say, six turns through each one would give larger inductance values to

My H4 was made 02/20 0.5.0 firmware.? loosened screws, but no difference.? Tried all the touch screen test etc.

Most recent version of Octave (6.2.0) gives the same answers: ans = Inf ans = 1 I just started playing with Octave recently. What a wonderful tool!

I have three different ferrite beads of the same size and would like to know which one would provide the greatest EMI Suppression at 2.0 MHz. The ferrite beads have a diameter of 0.5" and a height of

The old Siemens B62152 ferrite core series were colour coded with a fuzzy spray of paint across one edge. For example I recall that the A1 X1 twin hole beads were faintly flashed with purple paint. I

Agreed have had the same thought.I have often wondered what happens when outside people are hired for stocktaking.These are black round with a hole in them ,must be the same.Stick them in the one box.

I meant the conversion of the original design to KICAD. I presumed that, that was the first step. In any case looking forward to seeing your improvements, V2 is a good OSH project and deserves to be

I’ve often wondered WHY there is no standard for MARKING ferrite’s, so it’s not a guessing game???? -- Regards, Chris K2STP

My Nano VNA came from Sysjoint. Is my gadget compatible with the VNA software such as Saver and One of 11 ? My gadget works quite well off-line. When I connect the gadget on my Windows 10 PC, none of

The current design has not been successfully debugged, so it cannot be uploaded to github temporarily. I am about to revise a version and see the new idea of reflection bridge suggested by OWO, so I