Anritsu 37 C Series, Руководство по эксплуатации, Страница: 60 / 603

4-3
CALIBRATION
KEY-GROUP The Calibration keys ( Begin Cal and Apply Cal , left) are described be-
low. The calibration menus are diagrammed according to the method
of calibration performed: Standard, Offset-Short, TRM or LRL/LRM.
The menu sequencing is complex and looping and can be said to have
two parts: setup and calibration. The setup flow for the four calibra-
tion methods is diagrammed in Figures 4-2 thru 4-5. Each setup flow
chart leads to the main calibration sequence, which is diagramed in
Figure 4-6. A full description of each menu is provided in Appendix A,
where the menus are arranged in alphabetical order by call letter (C1,
C2, C3, etc).
Begin Cal Key: This key displays a menu that lets you initiate the
calibration sequence. That is, to begin a sequence of steps that corrects
for errors inherent in a measurement setup.
Apply Cal Key:
This key displays a menu (left) that lets you turn on
and off the error correction that may be applied to the displayed chan-
nel(s) using the currently valid error-correction indicator. Additionally,
the menu lets you turn tune mode on and off and change the number
of forward sweeps between reverse sweeps (or reverse sweeps between
forward sweeps).
NOTE
Pressing the
Clear
key while in a calibration setup or se-
quencing will let you abort the calibration and return to
the first setup menu. Pressing the Setup Menu key will do
the same, but without requesting confirmation.
CALIBRATION KEY-GROUP FRONT PANEL OPERATION
4-10 37XXXC OM
Apply
Cal
Begin
Cal
MENU CA L_AP PLIED
APPLY
CALIBRATION
APPLY ON (OFF)
CALIBRATION
FULL 12-TERM
(S11, S21
S22, S12)
TUNE MODE ON (OFF)
NO. OF FWD (REV)
SWEEPS BETWEEN
REV (FWD) SWEEPS
XXXXX SWEEPS
(XXXXX REMAINING)
PRESS <APPLY CAL>
TO TURN ON/OFF
PRESS <ENTER>
TO TURN ON/OFF