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What ever you buy, I'd recommend using its "official shop". There are links on the homepage.

I would strongly recommend buying from R&L Electronics. You won't get a clone from them!! Here is the link to them for the NANOVNA-H4:

Nanovna-H4 is a great basic vna, if you don't need multiple GHz frequencies. It runs the latest firmware and is actively supported. And you should be able to get one for less than $100

Hi Jim. Thanks for the reply. The answer is simple. Convenient! A pair of trees are there, about 100 feet apart and between them, nothing. No balun used. The ends of the dipole are away from each tree

Have you checked the homepage(s). Like https://nanorfe.com/ and https://nanorfe.com/nanovna-versions.html I can recommend V2 Plus4 Pro V2.4, it costs 299$ plus 18650 battery. But today I would try to

Hello Alan Did you start with some ideal calculated length for 7.05 MHz, set the dipole at 7 feet high and then trim the length for best return loss? Or perhaps put up precut wire for a higher

I know this is old but thank you so much for posting that link about the larger screen job. That guy did an amazing job and it was enjoyable to scroll through Good day !

I am doing something wrong. I uploaded bin file of memory to my computer (NanoVNA.H.v1.1.00FromVanoVNA.bin). If I compare what I saved to my computer to memory, I get a match. I then downlodaed from

NanoVNA-H4 NanoVNA v2 Plus4 Istvaan

Hi Stan and others, Thanks for the reply. Based upon my photos from earlier in the thread does a negative offset delay seem reasonable. It doesn't to me, but my experience is limited. Best, Chris

Hi, I like to replace my first edition NanoVNA with a newer, read better one. Can you advise me a good model that runs with the Nanovna-saver program and does not break the bank? 73' Ron ON2RON

Normally you try to calibrate at the reference plane where you want to take the measurements, and the delay is set to 0. The e-delay is a method of adjusting the position of the reference plane before

Hello Robin. Thanks for the response. The F-F adapter 15mm long. It was replaced with about 50mm of transmission line in the form of a female SMA with 50 ohm coax cable. My question is about using a

Christopher, in air—strictly vacuum—205 ps is equivalent to about 60 mm, which is not so far off the length of the F-F adapter that you had removed. The numbers, when all is going well, tend not

You need to use Device manager to see if a COM port is active for your NanoVNA. If it isn't there you need to get it installed somehow. The method depends on which OS you are using. Once you can

Hello, I SOL calibrated my NanoVNA using a 30cm cable + F to F SMA coupler and the SOL end pieces. I removed the coupler and attached the 30cm cable to a ~5cm 50 ohm coax cable soldered to the input

There are two Android apps for updating FW on the TinySA'S and NanoVNA H and H4's. 1- StmDfuUsb 2- StmDfuBlue for those who have installed bluetooth modual. Both will install dfu, bin or hex files.

I think I have finally gotten something installed to flash new FW on my NanoVNA-H. I installed STM32CubeProgrammer on MacOS Ventura. I tried, unsuccessfully, on Windows 11 under VMWare Fusion. In

I had a 40 meter dipole at 7 feet above ground. Straight run no bends. At 7 feet, easy to clip the vna on and take a measure. Better than 20 dB return loss at 7.050 MHz. At 10 W in, first contact was

The trapezoidal loop was much lower 5m at one end 3m at the other compared to the doublet which is 10m away. The objective was to validate the existence of NVIS propagation on 40 m. A priori, at the