On Sat, Jan 25, 2025 at 09:30 AM, W0LEV wrote:
Again, remember, we are "amateurs". We do not run a metrology lab (well,
maybe one or two of us might?). 50.86-ohms DC resistance is plenty good
enough.
The number of significant digits directly reflects what is displayed by
each of the DMMs. Which is correct? I SERIOUSLY doubt the differences
would be of ANY significance in amateur radio work!
Dave,
You are making a blanket statement when you say we are all "amateurs" here or talk about "amateur radio" work. This is NOT an amateur radio group. There are many of us in the group that are professional RF engineers or technicians and we strive to get the best performance possible out of the NanoVNA. If it were not for people like DiSlord (firmware), Zareth and Rune ( NanoVNA Saver) and OneofEleven, Owen Duffy and DiSlord (NanoVNA app) striving to squeeze the best accuracy and features from the NanoVNA we would not have the exceptional device we are using today.
And some of us do own test equipment that can measure resistance to several decimal places with digits that are significant.
So if you don't wish to achieve the best accuracy possible with the device that is your choice but please enough with these
"we do not run a metrology lab" comments that you make from time to time. It is discouraging and dismissive to those of us trying to show how the NanoVNA can be used to its full potential.
Roger Need
Roger Need