On Fri, Mar 21, 2025 at 08:18 PM, Daniel KK4MRN wrote:
Do you have to install some firmware on your nanovna for it to work?? And that you have to make sure it is certain nanovna?? not all will work.?
?
Firmware is something called Dislord?
?
I have NanoVNA-H but not the H4.??? Will the NanoVNA-H work which has a 2.8" screen?
This is what it is.? Note, I got it much cheaper in the past - but inflation these days...
?
Probably best it have its own topic for using NanoVNA for matching crystals.
?
Daniel,
?
A preamble: this group is loaded with wizards and these guys (and gals) know a lot about stuff. That I recommend other sources by no means discredits the folks here. It's just that it might be a little off topic. THIS IS NOT AN ADMONITION! Just pointing out other resources.?
?
(1) You do NOT have to install firmware on your NanoVNA to make it work. Depending on when you purchased yours, it will have firmware ("FW") it was initially "burned" with.
(2) The FW will be vary old and, while that is not at all bad, there are some new features that would make upgrading desirable.
(3) By the same token, you might want to upgrade your NanoVNA as well. The H with the smaller screen leaves a lot to be desired.
(4) Similarly, the later/latest FW upgrades will function on an H4 or other VNAs with a 4" screen.
(5) The H4 models' price have declined violently; they sell on Amazon for much less than when I purchased mine circa 2020.
(6) Then: over $100 Now: around $80 on Amazon. About $5-10 less on eBay if you want to wait a month for Chinese shipping.
(7) There are many YouTube videos with NanoVNA "intros". They are cursory and most don't handle the topic comprehensively.
(8) Recommend the following series as being more comprehensive. It starts with this one:
?
?????
?
(9) ..and includes with this one which is a comprehensive tour of the menu and, perforce, the machine:
?
? ? ?
?
(10) Recommend viewing all at your leisure. These videos will fill a lot of the holes the other "intros" will leave you with.
(11) Similarly, there is a group -- nanovnausers -- that is loaded with folks and info on these little beasts.?
(12) Asking and searching threads reveal incredibly useful tidbits. Also cruise their "Messages" and their "Wiki sections as well.
(13) The Wiki contains overviews of models, FW, etc. Here is the H4 "Wiki"
?
?
..note the directions on how to upgrade FW.
?
I was pressed back into using (and therefore re-learning) how to use my H4 recently. Without the resources above, I never would have realized what a powerful little gadget these are.
?
Good luck.
?
--
William, k6whp
--------------------
"Cheer up, things could get worse. So I cheered up and things got worse."
k6whp