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That acts exactly the way I would expect a failed battery to behave, esp. since DFU mode does not eun anything that you flashed . . . Somewhat odd that it won't stay on if plugged in, but the charge

I've used my NanoVNA-H4 periodically for several years. Yesterday I charged it, then upgraded the firmware from NanoVNA-H4-SI_20211230 to NanoVNA-H4-SI_20211230. I re-calibrated and started doing some

R&L form too.... John K0JHL

I second R&L for USA purchasers. They have a very good reputation. I purchased my Ultra from them. My original first run Tiny was purchased direct from Erik's supplier in the days before the vendor

check out r and l electronics, u wont get a clone, and u can talk via phone if need be.

That's not my experience - if you order something that is listed from the Aursinc store, you'll get one from Aursinc. Same with other stores on Amazon. But maybe this doesn't happen if an item isn't

The problem I have with amazon for this is that you have absolutely no guarantee that you'll get a unit from any particular supplier -- they'll ship what they find convenient to ship, so you may get a

Thanks, but that does not really change what I wrote. Best to buy direct from the vendor IMO. The OP did not know about authorized resellers. I already own both Tinys purchased vendor direct. The same

Jim, If you check the TinySA group WiKi, you will find TWO approved vendors on Amazon for the TinySA and Ultra or TinySA4. They are SeeSii and AURSINC. As far as the NanoVNA H and H4, R&L Electronics,

Thank you very much Karl

Do not buy a TinySA on Amazon. You will likely get an inferior clone. Approved seller scan be found in the TinySA Wiki. https://tinysa.org/wiki/pmwiki.php?n=Main.Buying "Matthew Rapaport via

Thanks Stan... I knew there had to be a reason ???

that's what I've done? ?modified a RCS-8 to add a load and a shortpython script steps it through the csl sequenceSent via the Samsung Galaxy S24, an AT&T 5G smartphone

Just run the calibration with the feed line included. 73 Peter -----Original-Nachricht----- Betreff: [nanovna-users] An OSL box at the antenna? Datum: 2024-10-22T22:59:12+0200 Von: "Leif M"

Antennas on high towers are difficult to test. How about an relay box with OSL standards inside at the antenna terminals.

Hi Matthew Thank you very much, it's done with youtube , Clear Now , 73's Nizar

While similar in some respects, the nanoVNA and tinySA are completely different designs and completely different instruments. The nanoVNA does not display the time on the screen - it is used for

Nizar.. these are two different devices with entirely different purposes. Suggest you watch some YouTube videos on both and decide on which you need.. or get both! If you are U.S. based Amazon is a

Hi Matthew pse can you pointed me what Navo VNA you recommend to get, NANO-VNA H4 or TinySA ?? wanted with open source , 4'' screen with efficient touchscreen function if possible. Thanks 73's Nizar .

Curious... I set the date & time on my NanoVNA H4, but nothing appears on the screen. When I did this long ago on my TinySA ultra the date & time display in the lower right corner. Am I missing a step