As far as support goes, the NanoVNA is an opensource project. Everything from the software to the schematics is all open source and you could even build one yourself. Buying one of these pre-made ones from Amazon is for the convenience of getting one made for you. Since they are based off this open source project, they all receive the same updates as the project gets updated. A link to the project is here - github.com/hugen79/NanoVNA-H One of the better companies that makes these products is AURSINC and here's a link to their Amazon page amzn.to/3R0qSzn For your needs, they make a 3GHz version that will let you work with WiFi/Bluetooth as well as Ham Radio Antennas and a link to that is here amzn.to/3GlXKO3 These will come with a 50 Ohm calibration kit, but others have made their own calibration kits for other impedances. Thanks for the question!

@@The_Comms_Channel I assume besides the 50 Ohm they also come with the OPEN and SHORT fixtures as well. I am reading some have problems when updating the firmware with certain MFG of the hardware which raises my concern to buy one that is known not to have firmware update problems. Thanks,

Buy one that has the range of your antenna and cables.

Sure thing! Meshtastic has such a great community and I'm excited to see it grow!

🤣🤣🤣 For real!

Thanks, I really appreciate it! More content coming soon!

Underscored and bolded. Great presentation and pace.

Haha, perfect timing! Glad the video is helpful.

@@The_Comms_Channelthis might be too long of a response for you to type but how do I set the VNA to show which specific frequency the antenna is set to, if that makes sense. I saw another video by Ham Radio Crash Course I think and he was using this same thing but his little scope had just a linear output with a dip at the specific frequency the antenna was “set to” was the wording I think he used. He said something about sometimes you’ll get an antenna with these Meshtastic radios that are bad to use cause they are work on a completely different frequency like 430 mhz or something like that. Does that make sense? If so, how do I show that graph? Thanks for sharing

​​@@millbean13Its not a simple button press, but it is a simple process. the biggest factor determining where an antenna will be effective is the antennas length. Assuming you are testing an antenna designed for your desired frequency range, you might start by expanding the frequency range slightly beyond the ideal range and see how your results turn out. If the results are poor, expand the test range even farther until you see where the SWR drops, then re-center there and retest with appropriate granularity to get a good picture of how the antenna performs based on its default construction/tuning/length.

Yeah, the one that comes with the T-Beams aren't great. The part where I enter in the Start and End frequencies, just expand the range a bit (can try 400MHz and 1000MHz) from there you will want to look for a dip in the graph and use the left or right to put the marker on the dip to see what frequency is the best for that antenna. You may have to play around with what you enter into the Start/Stop range until you see the dip.

Nice! Sure thing! I'm glad you're finding the videos helpful!

Thanks! There's some good people in the ham community, but there's certainly plenty of sad hams too. It's a shame really. I've had a number of them comment on my videos from their mom's basement.

Thank you! I'm glad you're enjoying it! If you have anything you want to see, let me know and I'll see if I can do a video on it. Thanks for the comment!

Actually, I would love to see some range testing with direction antennas.

I'll see what I can do with that. I live in a hilly/mountainous area.

Sure thing! Glad it was helpful!

Thank you! Glad it was helpful!

Good idea! I'll do something on that.

YESSSS NERD TIME IS THE BEST

Nice! Hard to beat the power efficiency of NRF52! Love the modularity of the WisBlock and will be going over some of the sensors that can be added in the next video.

BTW I read in a comment on the LilyGo site that the stock antenna seems more resonant at 1,200 mhz which seems more in line with an L2. Have you by any chance tried using the T-Echo stock antenna as a GPS antenna? I would be interesting to be able to recycle. Thanks!

okay thanks for your insight

No worries with the NanoVNA since it isn't transmitting

Hmmm, that is weird. May be a typo? Amazon descriptions aren't the best sometimes.

That's a very good point...lol But it seems odd that several different brands would have the exact same typo.....unless maybe they're all being made in the same factory....maybe....? I'm thinking I'll just wait until after the holidays and pick one up like you're using....that will allow me to work with 2.4 routers and my r/c stuff too.

I've had mine a while and it's been good to me. If I was buying a new one today, I'd probably get one from AURSINC. I've updated the links in the video for the different models from them.

Good idea!

Go touch grass

@@The_Comms_Channel - your content on the Meshtastic RAK gear is fantastic. Thank you!

Sure thing! Glad you're enjoying it!