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Wow. Lots of good info there to digest... :-) -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, ?a critter that can be killed but

At this moment no, USB work only as Serial USB Driver USB as Mass Storage Device not implemented

I think my SD card is recognized and is writing successfully (see below), but other than taking the SD card out, is there a way to get to the saved data? Thanks! Brian ch> S file CMD0 Ok CMD8 Ok CMD8

Some si5351 chips can non stable work at 300Mhz (on datasheet max 200MHz) Tru reduce it maximum by set 290-301MHz: 'threshold 301000000' and wait result if not help reduce 'threshold 299000000' and so

I check it, but on H4 use longfilenames, and name + filecreation time some PS on H filename = filecreation time in Hex So 0x50ED8956 in binary =0b1010000111011011000100101010110 year 0b101000 + 1980 =

Anton That is quite a wide freq range. What kind if common mode Z are you looking for? You must maintain the characteristic Z of the RF path so coax wrapped around a core is the way to go. Bifilar is

Anton ask, I guess an attempt to create a decent CM-choke for the 50kHz~300MHz span would be DIFFICULT, more so for a wider span. Are there any engineering instructions on the topic? I don't know a

Has anyone else noticed if the files saved on the SD card are at the correct time? I saved the data at 16:10 and the file is 17:10. I checked on the PC and smartphone. Both times, I have the same

Hi, a week back I got an H4, after initial playing with it I upgraded it to the v.0.8.4.7 fw. Nice! I see an issue with it, however. With fully charged battery, not connected to PC, CH0 terminated

Hello, I exported some data from my nanoVNA S-A-A V2 using the nanoVNA saver software, but when I viewed the .s2p file, S11 values were the exact same as my S21, even though that was not the case in

Yes, we somehow must measure with the balun choke "in place". Here is my practical approach (see my powerpoint): We can compare that in-place result with another measurement with no balun. From the

All my life I have been interested in electronics. HOWEVER, I am severely dyslectic; so much so that some (not all) of my grammar school teachers thought me to be retarded. I entered high school as an

If you don't mind a bit of home brewing; Mini Circuits has lots of surface mount pre-amps dirt cheap (<$3), such as: https://www.minicircuits.com/WebStore/dashboard.html?model=GALI-74%2B The only

Kevin Schmidt, W9CF, has written about measuring an antenna system's differential and common-mode impedances -- he describes it in the appendix of this article:

I had a crazy idea for the common mode impedance measurement (of the antenna/feedline system, not of the balun itself), although it could only work well at fairly low frequencies (say, well below 100

I don''t mean use SD card instead of flash, I mean just give the user the option to backup all the current settings to SD card, and restore back to flash if need be.

Hello there! I absolutely LOVE the v0.8.4.5 (on NanoVNA-H) for its' speed and general feel. I wish that firmware would be used as THE golden standard for any further development. Thanks, DiSlord, for

Dear Cliffird, I guess an attempt to create a decent CM-choke for the 50kHz~300MHz span would be DIFFICULT, more so for a wider span. Are there any engineering instructions on the topic? Warm regards,

/g/nanovna-users/files/NanoVNA%20PC%20Software/NanoVNA-Saver/nvna-s-pve-rev-c.pdf Thanks for the LM20 test Nels. Just tested these instructions again with nanovna-saver-0.3.4 and

You need them solve one problem: NanoVNA use interpolation then change frequency range/points count, made measure from PC command. And need original calibration data from flash for calculations. Yes i