开云体育

I have. Luckily it was still within the return period on ebay

So far I haven't seen any incompatible clones of the Nano H or H4. Maybe I missed some ...

Yeah, derivatives do accentuate noise - but sometimes that's actually useful to spot a discontinuity in a system that should otherwise be "smooth" And when you have multiple resonances, is makes them

Make sure you are taking frequency steps that are small wrt to the DUT bandwidth. GD on a xtal filter is one example.

. . . and far, far, less portable (IE not an option for all, unlike Cube) . . . -- Sent from my Android device with K-9 Mail. Please excuse my brevity.

Jim, your comment inspired me to add group delay to my program. I don't see its relevance for ground probe data, but it provides a powerful diagnostic tool that can reveal anomalies otherwise

The STM32CubeProgrammer is good, I like it but, the app is more problem free... did You saw this topics? /g/nanovna-users/topic/100723284

While that is technically true, its only possible if you either made a backup of the firmware on the unit prior to flashing the new firmware or were able to find the firmware originally on the unit.

These things can't be bricked, in the worst case scenario you would need a $2 ST Link clone to flash the firmware.

Me as well. I have 2 desktops Both running windows 11 One is a custom built amd gaming system and the driver did not work. The other is a customer built intel system functioning as a file server.

I've just been down this road, encountering many problems. My environment is MacOS Ventura 13.5 on a Macbook Air M1. I also run Windows 11 in a virtual machine with VMware Fusion. I could never get

Hi, Follow this guide: https://github.com/ylabrj/NanoVNA_Load_Windows10 If your not sure if your Nanovna is an official one or not, do not upgrade or risk bricking your unit. Tim. KD2YYI

Hello Can someone please point me in the direction of instructions of how I can update the firmware of my nano VNA. The firmware is currently 1.0.45. I am new to the group and have searched the topic

Makes sense. I setup LTSpice for 0 dBm out of CH0 with 50 Ohm load. Then inserted 1k Ohm and got 20.7 dBm at CH1. Thanks for the explanation.

When you put a 1000 ohm resistor between CH0 (port1) and CH1 (port 2) of the NanoVNA you should measure an "Insertion Loss" of -20.8 dB if the NanoVNA was a perfect device. It is not for several

Why for the same circuit is the NanoVNA (-20 dB), LTSpice (-27 dB), and Scope/Sig Gen (-27 dB) result in different answers. The circuit is a 1,000 Ohm resistor tied from CH0 to CH1. Based on some

That is OK, because the upload to the PC reads the complete 128KByte from the flash including the unused bytes after the program at the memory end while the FW files of about 100K contain only the

I have made some progress. I wanted to be able to extract the FW from my device for backup. I can't seem to find FW that matches mine online. This

Seconded. I bought mine there, along with two sets of adapters. No complaints... WD3WTF -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of

with the version screen cap