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Nope, but tnx anyway. Gives me an excuse to buy the 4" version. -- John AE5X

John, Just put the device into dfu mode by shorting the boot0 pins on the side (open the cover) and powering it up. Then, use defuse demo as always.? All of this is noted in various user guides......

If you can't get it into DFU mode on your -H4 (4 inch screen) by pushing the jog switch/power you might have to open the case and jumper the Boot pins to get it into DFU mode. I have not done this

No joy. -- John AE5X

Have you tried powering off and then holding down the jog wheel while you power on to go into DFU mode? If that works try loading your firmware release again (make sure it is for the H4) and see if

Have a look in the wiki: /g/nanovna-users/wiki/16592 73, Rudi DL5FA

Correction: nanoVNA-H No "4" -- John AE5X https://ae5x.blogspot.com/

into a nanoVNA-4? I have the dreaded white screen after attempting a firmware update. Reading past postings indicates that I need to load DMR-CLEAR_MEMORY_DFU.dfu My PC no longer sees the vna,

Oddly, I was just about to measure the port to port isolation on a RCS-8V, to see if it's safe to leave the NanoVNA connected to one port, and the 100W transceiver to the other.? +50 dBm on one port,

Your long coax cable has destroyed input components (C1 or input switch MXD 8614) at connector 1 of your nanovna. This may happen due to electrostatics on the cable. You should shorten the cable bevor

I thought these might be of interest to the group. Properly Testing Baluns by W8JI https://www.w8ji.com/balun_test.htm Measuring HF Balun Performance by W6WO

Same problem here!

"I've also found the same general idea very useful in measuring the relative coupling between my various ham antennas so that I can decide if I need to worry about protecting receivers on a given

I have an SAA2N that has been working fine. Yesterday I was using it to measure a long run of coax, and it was working fine. Then it just started acting like it was not sending a signal out of port 0.

Last winter I did a lot of UHF antenna debugging for a wireless microphone installation project in my small basement by using the through mode of the VNA and measuring the loss/gain between the

IMHO, the best choice for editable documents is Markdown. Sure it has limitations, eg it’s cumbersome to include images. Also PDF is more editable than it looks. This requires specialized software

Yes, Flex-Weave, AWG #14, from DavisRF is what I used. Dave - W?LEV <hornpipe112@...> wrote: -- *Dave - W?LEV* *Just Let Darwin Work*

Right. But both of these are rather resource-intensive, take a while to load, and make me not want to bother with the document in question. -- Member of the toughest, meanest, deadliest, most

Docx is not an open standard. OpenDocument is and it is an international standard.

Both Open Office and Libre Office (free programs) can open docx files. Zack wrote: <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>