On 10/5/21 8:06 AM, Dragan Milivojevic wrote:
If I understand correctly this will lead to interpolation
by Nano firmware which is not a good idea.
Well, as a substitute for "no calibration" which isn't easy to command, if the wideband cal is stored in #0, it has the advantage of "power cycle and you're in a known state"
I'm not sure what the interpolation algorithm does if it's over, say, 1-100 MHz, and it extrapolates for, say, 500 MHz.? If it just assumes "carry 100 MHz cal all the way to the top" that's probably ok.? If it's "continue last linear segment" then you could wind up with a weird result, if the cal coefficients between 99-100 MHz happened to be changing rapidly.
On Tue, 5 Oct 2021 at 15:32, Jim Lux <jim@...> wrote:
On 10/4/21 6:07 PM, Roger Need via groups.io wrote:
Rune had a good suggestion where you calibrate slot 0 in the NanoVNA for
the maximum frequency range you would ever need and then leave it that way
and use the other slots for other frequency ranges you might want.
That is a good idea.
