7 Using 8480 Series Power Sensors
180 N1911A/1912A P-Series Power Meters User’s Guide
Frequency Specific Calibration Factors
This section shows you how to make a measurement using the calibration
factor for the frequency of the signal you want to measure.
Procedure
First select and enter the reference calibration factor for the sensor you
are using as follows:
1 Ensure the power sensor is disconnected from any signal source.
2 Refer to the connection requirements in Table 7- 12 and ensure the
sensor is ready for connection to the Power Reference.
3 Check the current reference calibration factor setting by pressing
, . The value is displayed under the channel
softkey.
Does this setting match the value for the sensor? (The power sensor
reference calibration factor can normally be found above the calibration
factors table on the power sensor body.)
4 To change the settings, press the channel . The reference
calibration factor pop up window is displayed as shown in
Figure 7- 125. Use the numeric keypad to enter the required value in
the Ref Cal Factor pop- up menu.
TIP This method is best suited to making several measurements at
one frequency as you need only enter a small amount of data.
Using this method requires the following steps:
1 Zero and calibrate the power meter/sensor combination.
2 Set the calibration factor value for the frequency of the
signal you want to measure.
3 Make the measurement.
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