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Roger: Bingo! I used the wrong .dfu. Downloaded -H4 and I am back in business. I owe you big time. Thanks for all your help. Fred WD9HNU

On Mon, May 23, 2022 at 07:25 AM, Fred Piering wrote: Fred, Are you sure you are using the correct DFU file for the -H4? If you use the -H you will get a black screen. You need to use the "Upgrade"

Hello Igor: Thank you for the comprehensive video. I performed the task as you showed, with the latest dfu file. It appeared to function as your video showed. However, I am still left with a black

IMO, this would be stupidly cheap if it wasn't for the fact that the other nanoVNAs are so ridiculously cheap. Check the price of any way less capable graphical antenna analyzer for comparison. Even

Roger, Many thanks for your comments, links, and photos. I completely agree about the calibration kit, although I'm more likely to be using it with SMA devices most of the time. The dynamic range

Chris, Thanks for your comments. I agree about the price, although these days prices are always higher than expected! It was the large screen which attracted me, and I don't know of any other 7-inch

Attached are some photos showing what you get in the box and what it looks like inside. What I find disappointing is that it does not come with an N connector calibration kit. Inside it uses a SMA to

This is the latest product from SYSJOINT (one of the developers of the NanoVNA-F). There is a Chinese version and an English version and they are not compatible according to the manufacturer. The Web

WOW, you searched the internet... WOW, what a novel idea, would be cool if others were to think of that... AND put their name on their post... John

A quick search on the internet yielded that it is a 75ohm-based VNA with a generator, like the NanoVNA. I also found a number of sites that had the manuals. 73 Evan AC9TU

can anyone tell me what the WILTRON 6407 RF ANALYZER does,is it the same as a vna,or more,cheers.

Just a casual observation / opinion. The device looks to be rather expensive for typical ham use to me, Unless of course you require testing capabilities in the 4.4 GHz ranges. The so called classic

"or" is left in the question :)

How do you update or does your nanovna-H4 look like the attached video? Link to get FW Hugen: https://github.com/hugen79/NanoVNA-H/releases

Well, Ollie, now you have done it. I have the Tiny SA and NanoVNA-H4. I have used them intermittently for some time, with the original firmware. For some reason, I decided this weekend to update the

Connecting to it might be tricky "witch can be used to connect DUTs with SMA interfaces." ;-) Just gotta find that nearest coven, I guess. ~R~ 72/73 de Rich NE1EE The Dusty Key On the banks of the

I see adverts for the SV4401A 4.4 GHz, 7-inch VNA from JNCRADIO, with N connectors.

Just use the 'measure / cable' function from the menu; it should work fine. It should report the impedance to be about 75ohm, and the length and loss of the cable. You do need to set the VF first. But

Using the NanoVNA to measure length of RG-6U cable, is it recommend to use a matching transformer (50Ω to 75Ω) or is that really just a moot issue? I have all the specs otherwise, such as VF.

Connect with a small coupling cap?!? Dg9bfc sigi Am 20.05.2022 21:03 schrieb Gerard <kabupos@...>: