Programming
3
Keysight 53147A/148A/149A Operating and Programming Guide
209
:CALibration Subsystem
This subsystem controls the Power Meter calibration system. This includes zeroing
and calibrating the Power Meter and managing the data in the frequency/
power-factor calibration tables stored in the instrument’s nonvolatile memory.
COMMAND
:CALibration:ALL[?]
Zeros the Power Meter and then calibrates it.
QUERY
RESPONSE
– Single ASCII-encoded byte, 0 or 1.
– A value of 0 indicates pass (calibration was successful); a value of 1 indicates
fail (calibration was not successful).
COMMENTS
– When the zero or calibration process fails, the relevant queue contains one of
the following messages:
– –340, “Data Questionable: ZERO ERROR”
–340, “Data Questionable: CAL ERROR”
RELATED
FRONT-PANEL
KEYS
Zero, Cal
COMMAND
:CALibration:AUTO ONCE
This command calibrates the Power Meter.
COMMENTS
– This command assumes that the power sensor is connected to a 1 mW
reference signal.
– The power meter should be zeroed before calibration using the
CALibration:ZERO:AUTO ONCE
command.
– For the Keysight 8480 series power sensors, the reference calibration factor
used during this calibration can be derived from either an active sensor
calibration table or the value entered using
CALibration:RCFactor
.
– The actual value used is the one which was most recently set. That is,
a value entered using
CALibration:RCFactor
is overridden if a sensor
calibration table is subsequently selected and enabled. Conversely,
CALibration:RCFactor
overrides any reference calibration factor previously set
from a sensor calibration table.
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