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My answer above means, as you probably know, that you can fine tune the frequency of a crystal by changing capacitors around it.

Jim KC2DHU - Let us know if you got it working. Curious to know what the results are. Thanks -- Andrew Harmon - KD5RKO

Oh yeah, forgot the sudo step. I knew there was something else I had to do to make this work! so: git clone https://github.com/mihtjel/nanovna-saver cd nanovna-saver sudo python3.7 -m pip install . --

Hugen, I noticed on the new NanoVNA-H4.2 PCB there is an unpopulated silk-screened area labeled "CARD1". Does that imply that a SanDisk card is in the works for a future version of the NanoVNA-H4?

Multi-function switches still exist. In nanovna-H4, the plastic case can fully protect the multi-function switches, so it is no longer a problem. Unfortunately, our software is still not optimal, and

On Sat, Jan 11, 2020 at 01:45 PM, Kevin B wrote: So I just dropped mine and the screen only turns on, nothing is displayed. Does anyone have an actual web link for a replacement?

The article is a quick read: https://hackaday.com/2020/01/11/nanovna-tests-antenna-pattern/ Marco

On Sat, Jan 11, 2020 at 09:00 PM, DaveH52 wrote: Did you get rid of that stupid switch? ====================================== Per developer and see attachment: " - Jog switch sensitivity has been

Did you get rid of that stupid switch? Dave

I ran into this error ("python setup.py egg_info" failed with error code 1 in /tmp/pip-build....) also in Kubuntu 18.04. All known dependencies were met and the previous version had installed and ran

Hi Jim, I had a similar issue on Debian 10 the other day. It seems like components of the Python environment are not automatically kept up to date when simply running apt-get. So after running:

225 MHz output can be achieved by operating the PLL at 900 MHz with a divider of four; that's within the spec for the PLL's VCO but the chip is not guaranteed to meet all its specifications at that

Is there a crystal somewhere? What are its tuning capacitors? And what is its load capacitance? Any room for a trimmer?

No version of the Si5351 is specified to operate about 200 MHz. The original Si5351A, B, and C were specified to 160 MHz. The later revision, the Si5351A-B (or B-B or C-B) are specified to work up to

Before you pass this by, thinking an idiot out in ham land can't calibrate a NanoVNA OPEN,SHORT,LOAD, THRU..... I'm not speaking of that calibration, which i found excellent in a paper "“Factory”

I eventually gave up on replacing the screen on mine. Not because I lack the skills to do it, but because I couldn't get one sent that didn't arrive smashed to bits when it arrived due to poor

Thank you. Is S11 or CH0 impedance also available in polar plot form. Is the offset delay also saved with calibration file. I attached a Smith chart file with a -1690 delay, does it look good. It is

Right, W5DXP, for lossless transmission lines and tuners the maximum power transfer theorem holds and the location of the tuner would not matter. But your question becomes a very important one, if

Yeah it looks like a bit of a challenge but manageable. What do I look for When buying a new screen? All the screens I found have another board in them and the ribbon cable is not visible to confirm

Starts on Jan 25 this year and lasts for 2 weeks. Many take a one week holiday starting Jan. 24... Roger