Agilent Technologies 8935 Series, Руководство пользователя

Страница: 163 / 343

162 Chapter 7
Periodic Adjustments
A Word About Storing Calibration Factors
A Word About Storing Calibration Factors
You should understand the calibration-factor-storage process before
running any of the following programs: Periodic Calibration, IQ
Calibration, Eb/No Calibration, or System Power Calibration.
As a program runs, calibration factors are computed and applied. When
all the calibration factors have been acquired, the program stops and
asks if the user wants the calibration factors to be stored. At this point,
it should be emphasized that the new calibration factors are now being
used by the Test Set. If you do not store them at this point, they will be
used by the Test Set until the power is switched off even though they
have not been stored.
If you do not store the calibration factors but run another calibration
program and then store the calibration factors, the calibration factors
from the previous program will be stored along with the calibration
factors just acquired unless the power is cycled between the tests.
Storing calibration factors copies the calibration factors from volatile to
non-volatile memory (that is, memory that is not erased when the
power is turned off).
Also, when storing calibration factors, be sure to wait for the message
Updating Flash Calibration Files... DO NOT Interrupt Power! to
disappear before continuing. Depending on the number of calibration
factors being stored, this may take several minutes.