Program Examples
Publication 21555, Rev. E, September 2002
A-31
A.7.4
Cal Factor Example 4
The following program shows how to input specific User Calibration Factor during measurement. This is
not the same as the special Frequency Cal Factors that can be programmed into the EEPROM. (See
Sensor EEPROM Commands in Section 2.5.32 for more information). This technique applies a specific
known value during measurements. It is useful when having performed a sensor calibration with other
devices attached to the sensor input, such as a power splitter or coupler, but do not want to change or
reprogram the CAL factor information inside the power sensor’s EEPROM. First the program sets the
58542 to 50 MHz where the Cal Factors of Giga-tronics power sensors are always 0.0 dBm.
310
ASSIGN @Pwr_mtr to 70101
320
CLEAR @Pwr_mtr
330
WAIT 1
340
OUTPUT @Pwr_mtr;CALC1:MODE NORMAL
! Can ONLY send Sensor Offset Commands in
! Normal Mode!!
350
!
360
OUTPUT @Pwr_mtr;SENS1:CORR:FREQ 5E7
! Cal Factors always 0.00dB at 50 MHz.
370
OUTPUT @Pwr_mtr;SENS1:CORR:OFFS:STAT ON
! Enables sensor offset control.
380
OUTPUT @Pwr_mtr;SENS1:CORR:OFFS 6.024
! Enters 6.024 dB as a Sensor Offset
390
!
400
OUTPUT @Pwr_mtr;MEAS1?
! Measures Power
410
ENTER @Pwr_mtr;Rdg
420
PRINT Rdg
430
!
440
END
Содержание 58542
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