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Have you seen these instructions yet? Other models access DFU another way. https://nanovna.com/?page_id=103

This is the original nanovna I purchased (after which I started [email protected]) in May 2019. The firmware is as was shipped/delivered, never updated (although I started the group and have

This is driving me nuts, sine I have the firmware version 0.0.5, I am having a hard time trying to figure out the firmware update process. First off there is no CONFIG tab on the screen when you first

One side of the window line goes to the beverage wire. Where does the second wire of the window line go? At the VNA end of the window line I would presume the window line wire that connects to the

I use Anritsu Site Master S810D for comparsion For calibration use it calibration kit Measure SWR 2.0 standart Foto from: Anritsu Site Master S810D V2Plus (modded from V2) H4 (it have very clean

Dave NU8A, Thanks for taking the time to write your post. Your explanation was concise and well done. Roger

Hello, can someone send me fm9688 chip? I know it can ordered from china, but there is new year season...Maybe from europe etc..pay via paypal--73 oh2lir

Dave, NU8A, and Jim Lux, thanks for filling in where I am unable. I do detect a very slight difference connecting both conductors vs. measuring only a single conductor, but your explanation makes it

The DM loss is primarily due to mismatch loss between the 50-ohm source impedance and impedance transformation caused by the bifilar pair behaving as a transmission line. The bifilar pair used here

Using VSWR or Return loss is a practical idea to avoid the dynamic range issue. Connect a 50 load to both the antenna port and the opposite input. Connect the NanoVNA to the input port of the duplexer

I found 2 of my plots,,done with a NanoVNA 144.76 -145.27

55 years as a ham, and years ago, hams made due with what they had and all they had to tune duplexers was it's transmitter and receiver, a step attenuator, another 2way radio, Dummy loads and a good

OK, I got my analyzer few months ago and it is abut time for me to start using it. My fist victim is going to be my Beverage " (sitting) on the fence setup". I am NOT looking for accurate measurements

John. Great idea. I will try with my smart phone. I am also going to try and do a screen p

In July 2020 I measured several chokes for an article in a magazine. Compared two 240-31-cores. One with RG58, tight windings, and one with RG174, loose windings. Of course, not one 31 core is equal

bifilar windings are essentially twisted pair. The two conductors are separated by the insulation thickness, which is "small".? So the mutual coupling is "large"

It would have been much more fun if you let him find that out for himself ;)

YOU missed the fact that the difference in diameter from wire to coax shield will make a difference in the inductance value........................ Mel, K6KBE

On 2/10/21 9:20 AM, Reinier Gerritsen wrote: > > Op 10-2-2021 om 17:15 schreef Jim Lux: >> On 2/10/21 7:36 AM, mender5@... wrote: >>> I made some small changes of my Nanovna-H. >>> Is there a way

On 2/10/21 9:05 AM, David Eckhardt wrote: > Thank you for the great summary and information about measure CMC CM > attenuation. I have a couple of follow up questions for you and/or the > group, if I