Utilities SMIQ
1125.5555.03 E-92.420
Calibration LEV PRESET
The vector modulator is aligned in terms of residual carrier, IQ imbalance and quadrature. With options
SMIQB10/B20 MCOD, SMIQB14/15 FSIM and SMIQB17 NDSIM provided, calibrations are called up for
these modules too and the module offset and partly the IQ imbalance are calibrated. Since the
calibrations are interdependent, calling up individual calibrations is not recommended. All calibrations
are run internally. Calibration should be called up after a warm-up time of approx. 1 h or in case of a
temperature change of more than 5°C .
Menu selection: UTILITIES - CALIB - LEV PRESET
SYSTEM
REF OSC
PHASE
PROTECT
CALIB
DIAG
TEST
MOD KEY
AUX I/O
BEEPER
INSTALL
ALL
VCO SUM
VECTOR MOD
LEV PRESET
OSC REF
LEVEL
ALC TABLE
LEV ATT
FREQ
100. 000 000 0
MHz
LEVEL
- 30.0
dBm
CALIBRATE
TABLE IQMOD-CW IQMOD-VM IQCON
VIEW
300.000 0 kHz +23
1.000 000 0 MHz +23
1.000 000 1 MHz +24
2.000 000 0 MHz +24
2.000 000 1 MHz +25
3.000 000 0 MHz +25
0001
0002
0003
0004
0005
0006
FREQUENCY
LEVEL
ANALOG MOD
VECTOR MOD
DIGITAL MOD
DIGITAL STD
LF OUTPUT
SWEEP
LIST
MEM SEQ
UTILITIES
Fig. 2-264 Menu UTILITIES - CALIB - LEV PRESET
CALIBRATE
Triggers the calibration for level preset.
IEC/IEEE-bus command :CAL:LPR?
The following parameters are only necessary for the indication of the correction values:
TABLE
Selection of the correction values displayed by VIEW
IQMOD-CW Correction values of module "IQ-Modulator", valid with CW
mode
IQMOD-VM Correction values of module "IQ-Modulator", valid with IQ
mode
CONVERTER Correction values of module "IQ-Converter"
VIEW
The cursor wraps to index 1 of the list. The list can be executed using the
rotary knob. This index can be directly obtained by entering the index value on
the digit block.
IEC/IEEE-bus command :CAL:LPR:DATA?
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