Power Meter Remote Operation 1
N1911A/1912A P-Series Power Meters Programming Guide 9
Zeroing and Calibrating the P-Series Power Sensor
P- Series wideband power sensor’s do not need manual calibration and
zero routines performed. These are performed without removing the power
sensor from the source.
Zeroing
Zeroing adjusts the power meter’s specified channel for a zero power
reading.
The command CALibration[1]|2:ZERO:AUTO [ONCE|ON|OFF|0|1] causes
the power meter to perform its zeroing routine on the specified channel
when enabled. This adjusts the power meter for a zero power reading with
no power supplied to the power sensor.
1|ON can only be used with a P-Series sensor. When 1|ON is enabled the
the zero is maintained by a combination of zero on-the-fly for
measurements and temperature compensation.
Zeroing of the power meter happens automatically:
•When a 5
o
C change in temperature occurs
• When you change the power sensor
• Every 24 hours
• Prior to measuring low level signals. For example, 10 dB above the
lowest specified power for your power sensor.
Calibration
The command used to calibrate the power meter is:
CALibration[1|2]:AUTO ONCE
It is recommended that you zero the power meter before calibrating.
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