Giga-tronics 8650A Series, Operation Manual

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Remote Operation
Manual 31470, Rev. E, April 2001 3-35
3.2.20 Offsets
SENSe:CORRection
Sensor power offsets apply to the individual sensor. Use sensor offsets to account for the loss of
attenuators, which are commonly used during measurement to reduce standing waves to improve
measurement accuracy. If you are measuring high power signals (>100 mW), but are not using Giga-
tronics high power sensors, you will need to use a power attenuator between the high power output and
the sensor input to prevent damage. Enter the value of attenuation as a sensor offset, and the 8650A will
automatically respond with the actual power level output in its measurement data.
Syntax : SENSe<sensor 1 or 2>:CORRection:OFFSet:COLLect
Example : OUTPUT @Pwr_mtr;SENS1:CORR:OFFS:COLL
! Take sensor 1 current reading as offset
! value
Description : This command enters the current power level reading as the offset value.
Syntax : SENSe<sensor 1 or 2>:CORRection:OFFSet[:MAGnitude] space
<offset value in dB, -99.99 to 99.99>
Example : OUTPUT @Pwr_mtr;SENS2:CORR:OFFS 10.2 ! Compensate sensor 2 for 10.2 dB
! attenuation
Description : This command enters a specific sensor offset value.
Syntax : SENSe<sensor 1 or 2>:CORRection:OFFSet:STATe space <ON or OFF>
Example : OUTPUT @Pwr_mtr;SENS2:CORR:STAT ON ! Enable sensor 2 offset correction
Description : This command activates and deactivates the sensor offset function.