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Re: Measuring low resistance with a NanoVNA


 

Hi Jerry;

The power levels I posted are measured at the CH0 port. I haven¡¯t been ambitious enough to try digging into the source code to see where the levels were set. Measuring takes less effort. :-) I have been contemplating doing that though; such that I can tweak the device to my own liking. However the developers appear to be coordinating their efforts and doing a fine job without my having to add my two cents.

My being patient will present itself as a lesser distraction to them, and allow them to maintain their focus. I¡¯m sure they are critically evaluating their own work, and evidence suggests they will detect and correct the important shortcomings in due course, leaving the user community to follow the story line and appreciate the fruits of their labor.

My out of box experience with my original NanoVNA was overwhelmingly satisfactory, and my satisfaction would remain unwavering if I backed off to eddy555¡¯s original 300 MHz firmware today. Since then however; I¡¯ve run it up to 2.7 GHz, added a TDR feature, tapped into Rune¡¯s exceptionally well done NanoVNA-Saver GUI, and during a ¡°What the hell!¡± moment, I even tacked in a 1N4148 diode... just to give that cute little battery icon a tad of personality.

I dare say, that all of the technological upgrades that continue to evolve... almost entirely in software, have added value far beyond what any one of us has paid. Even the very worst of known ¡°questionable ¡° clones can hardly be considered anything but an extraordinary value for dollars spent.

If/when the ambitious passion of the developers should come to a halt, I will assess the fallout and decide then if ¡°damn good¡± isn¡¯t quite satisfactory enough fo me. After pondering that decision over a cup of coffee or two, I¡¯ll likely express out loud, the revelation I¡¯ve had since spotting the first NanoVNA posted on eBay...

¡°Really!!!¡± I¡¯ll exclaim...

¡°Do I really think I can do that better?¡±

From my current vantage point, I suspect my answer will come quickly...

¡°Nah... Not really!¡±

--
73

Gary, N3GO

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