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Calibrating for Increased Measurement Accuracy
Power Meter Measurement Calibration
To Calibrate the Analyzer Receiver to Measure Absolute Power
You can use the power meter calibration as a reference to calibrate the analyzer receiver to
accurately measure absolute power. The following procedure shows you how to calibrate
the receiver to any power level.
1. Set the analyzer test port power to the desired level:
(enter power level)
2. Connect the power sensor to the analyzer test port 1.
3. To apply the one sweep mode, press:
(enter power level)
NOTE Because power meter calibration requires a longer sweep time, you may want
to reduce the number of points before pressing . After the
power meter calibration is finished, return the number of points to its original
value and the analyzer will automatically interpolate this calibration.
The status notation PC will appear on the analyzer display. Port 1 is now a calibrated
source of power.
4. Connect the test port 1 output to the test port 2 input.
5. Choose a non-ratioed measurement by pressing:
This sets the source at PORT 1, and the measurement receiver to PORT 2, or input port
B.
6. To perform a receiver error correction, press:
(enter power level)
The receiver channel now measures power to a characteristic accuracy of 0.35 dB or
better. The accuracy depends on the match of the power meter, the source, and the
receiver.
Power x1
Cal
PWRMTR CAL
x1
ONE SWEEP
TAKE CAL SWEEP
TAKE CAL SWEEP
Meas
INPUT PORTS
B
TEST PORT 1
Cal
CALIBRATE MENU
RECEIVER CAL
x1
TAKE RCVR CAL SWEEP