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Folks, There is quite a bit of current activity on Twitter if you care to search for anything Nanovna related... Take a look at the search results for "nanovna" at

Unless I'm mistaken, hugen switched to the "V2" (S-A-A) design?

Yes, that's the sort of idea. Time to buy another nanoVNA to experiment with.

It is a starting point, to be upgraded AFTER Hugen's new hardware comes along. And, AGAIN, I am using this for other things as well... 73 Glen K4KV

Larry, Thanks!? I finally DID find the MCLK? ;-) 73 Glen K4KV

Out of pure curiosity: why are you recreating an obsolete design?

Jim, Have a look in the file section under Hardware Mods... /g/nanovna-users/files/Hardware%20Mods/Senzu%20-%20nanovna%20mod.pdf This person is on twitter, do a search for 'nanovna'

Glen, The MCLK is from the 5351 chip and the?I2S_DIN isn't used.?? Just highlight and use search on the schematic PDF to see the associated pins.? On Thu, 30 Jul 2020 at 10:31 AM, Glen

mmmm, them dots and commas can be crafty little things at the best of times, shouldn't be allowed I say ;)

Well, that's certainly the case that you can *measure* 100dB loss, but I think that when you're talking that kind of attenuation, there's other factors that will limit the accuracy - for instance, is

I'm not sure that you'd actually see enough power from BC transmitters to saturate the front end - I guess it depends on where you are relative to the transmitter. The MFJ259 are notorious for

No in range 1-100Mz nano vna allow get -100dB Here is attenuator measure in this range on last firmware

I repeat the hidden text, maybe you didn't read: I'm glad that you think so. Then I will tell you now that the programs are usually written on English language operating systems. While there are

I fully understand the layout of the Nano's.I currently own 5 commercial Network analyzers andmy vintage 141T does have a tracking filter when usedas a Scalar Analyzer. My point is that when you

On 7/30/20 7:38 AM, DiSlord wrote: > On Thu, Jul 30, 2020 at 07:21 AM, Jim Lux wrote: > >> >> Looking at the code in dsp.c, nanovna.h, and nanovna.c, >> >> It looks like the two synthesizers are set

Actually, no, any more than your standard HF receiver is "wide open" - most good receivers have limited filtering before the first mixer (because it's loss and would degrade the noise figure). The

On Thu, Jul 30, 2020 at 07:21 AM, Jim Lux wrote: > > Looking at the code in dsp.c, nanovna.h, and nanovna.c, > > It looks like the two synthesizers are set for an offset frequency of > 5kHz - that

Hello, I am in the process of laying out the schematic for the H4 on KiCad. My version will have the STM32F446RE chip, that has a whole lot more memory and speed. Anyway, I cannot resolve (find)

The front end of that 'receiver' is WIDE OPEN! RF rejection of that signal 20 kHz, 20 MHz or even 200 MHz away is ZERO! Kent WA5VJB

Looking at the code in dsp.c, nanovna.h, and nanovna.c, It looks like the two synthesizers are set for an offset frequency of 5kHz - that is, the LO to the mixers is 5kHz higher than the frequency