Agilent Technologies 8163A - How to Set the Calibration Offset

How to Measure Power Power Measurement
Agilent 8163A Lightwave Multimeter, Agilent 8164A Lightwave Measurement System, & Agilent 8166A Lightwave
Multichannel System, Fourth Edition
73
2 Move to <dBm>, by using the cursor key, and press Enter.
How to Set the Calibration Offset
This is a calibration offset that you can enter to compensate for external optical
circuitry, for example, the Agilent 81022FF Integrating Sphere or a 3 dB coupler.
The calibration offset, [Cal], is automatically subtracted from the input signal.
P
measured
(dBm) = P
input
(dBm) − CAL(dB)
Where,
P
measured
is the adjusted value of the signal read in dBm,
P
input
is the input signal level in dBm, and
CAL is the calibration offset in decibels (dB).
To set the calibration offset to 40.000 dB:
1 Move to the Power Meter channel and press the [Details] softkey.
2 Move to the [Cal] parameter and press Enter.
3 Enter 40.000 and press Enter.
Figure 43 Selecting the Power Unit