Utilities R&S®SML / R&S®SMV03
1090.3123.12 E-6 4.62
Calibration (Calib)
The Utilities - Calib menu offers access to calibration routines and correction values for the purpose of
servicing.
Menu selection: Utilities - Calib
Fig. 4-31 Utilities - Calib menu (preset setting)
Seven internal calibration routines are run on the main board. The evaluated calibration values are
stored on the module and if secured by Lock Level must be measured only when the unit is put into
operation for the first time or circuit components are to be repaired.
To enable the calibrations, switch off Lock Level 1 in the Utilities-Protect menu (see section "Passwords
for Accessing Protected Functions (Protect)” and enter password 123456.
If calibrations are to be performed, the unit is to be warmed up to its normal operating
temperature. If a cold unit is calibrated when putting the unit into operation, the calibration has
to be repeated with the unit at operating temperature.
Calibrations should be performed in the order indicated in Table 4-1. This is done automatically by the
All function in the Calibrate menu.
Table 4-1 Overview of internal calibration routines
Calibration Function Lock
Level
Module/
component
All All internal calibrations are performed one after the other
in the given order.
all
IF Filter Calibration of IF bandpass filter
Calibration of IF gain
1 Mainboard/
synthesizer
Main Loop Calibration of VCO preset voltage
Calibration of main loop gain
1 Mainboard/
synthesizer
Mult Filter Calibration of bandpass filters after multiplier 1 Mainboard/
synthesizer
Harm Filter Calibration of harmonics filters 1 Mainboard/
output section
Level Preset Calibration of operating point of AM modulator 1 Mainboard/
output section
LFGen Level Calibration of LF generator level 1 Mainboard/
LF generator
FM Offset Calibration of FMDC offsets none Mainboard/
synthesizer
ALC Table Correction values for the Table mode are regenerated. none -
For further information on Calibration of Ref Osc seeR&S SML / R&S SMV03 service manual (Order
No. 1090.3123.24). Level and attenuator do not need any settings.
To Next Page
Loading...
