[Elecraft] S-Meter Calibration

[Bob Lewis (AA4PB)]

> In theory, I like the idea of calibrating the S-meter to show S-9 at
50 uV.

One problem is that unless you've done some very careful receiver
design, the reading would only be accurate at one meter reading (S-9)
and on the band that the calibration was done. Using firmware, it
might be possible to provide a calibration table that would compensate
for different receiver gains on different bands and for the
differences at different signal levels including whether or not the
preamp was switched on. Unfortunately not many of us would have the
test equipment available to do an accurate calibration of the system.