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with 8 mA mode NanoVNA has a little worse dynamic range for 0-300 MHz. Here is my measurements for both cases taken on NanoVNA-Q firmware with enabled average mode. The test case is the following: 1)

iOS supports OTG (using so-called camera adapter) for some device classes, but not serial. My understanding is that iOS does support serial devices via BLE.

I see comparable differences in resistance plots on device when not recalibrating between power changes e.g. from ~ 27 to 30 Ohms @ 496MHz for power 3 to 1; inductance changes from ~1000 to 650 pH

I redid the 25 ohm measurement on three power levels. Power 1,2 and 3 using a calibration done at power 1 For sure there is difference where it should not. Look at the light blue line

Bob, I think most NanoVNA units use a type C USB connector. Some may be Micro USB. Our local 99-cent-only store often carries both types. --John Gord

I need a replacement cable to go from the nanoVNA to the USB port. Any links, specs, or other help? Bob

If Ipad supports USB-on-the-go, you may be able to connect it using USB.

Is there anyway to connect the NanoVNA to an IPad ? Sam W3OHM

I connected a piece of coax to the nano and, at the far end, connected first a resistor, then a capacitor, then an inductor. I read the nano screen in all three cases and the value indicated was

Hi Wolfgang and Gyula I can just salute that, it is a very nice program. Thank you for letting us try it Kind regards Kurt -----Oprindelig meddelelse----- Fra: [email protected]

Neb - Thanks so much! It works very nicely on my 'old' Windows Vista machine. That multipurpose chart in the upper right corner is wonderful. And the program found the right com port right away, too!

Bonjour Jean, There have been quite a number of improvements and new functions added to the firmware since the end of September by the main devs: QRP, reald, hugen79 and edy555.? And, as the wiki and

Hi Jean - Rune Broberg is the author of nanovna saver, which I think uses a minimal subset of nanoVNA commands that work with most firmware, particularly including originally installed by Hugen, which

Hello, we have, with this fantastic device and everyone's contribution, a great tool for our hobby. We see quite often a new firmware popping up. Is there a way to understand how a new firmware will

It doesn't look like hugen has any plans to update his original NanoVNA-Sharp application. Both QRP and neb40gsm@... have done an excellent job of taking hugen's reverse engineered NanoVNA-Sharp

Certainly, that can be noted in the Smith plot. Agreed; in this case one is a legit cal standard and the other is about 47.5 Ohms and 1.4nH

The T connector is not accounted for by the calibration..... BNC 50 ohm terminators can be very poor. They are sometimes a 1/8 watt axial lead resistor in the metal extension of the BNC. R varies

Hi Wolfgang, i'm glad you like it, the design and solution is Neb's merit - i just tested it and gave an opinion. I like it too, with clever solutions. 73, Gyula

cal adapters appear to be collectors item

BNC Tee with terminators at the end of a pigtail is far from ideal... I suppose that mixer distortion may be inconsistent among samples. FWIW, when calibrated for smaller ranges, e.g. 200-800MHz my