N8480 Series Power Sensors (Excluding Option Cft) - Agilent Technologies N1913a User Manual

6 Using N8480 Series Power Sensors

N8480 Series Power Sensors (excluding Option CFT)

Power sensors have small errors in their response over frequency. The
response of each sensor is measured during manufacture (and during
periodic calibration). With N8480 Series power sensors (excluding Option
CFT), the resulting frequency compensation information is written into
EEPROM. This allows the frequency and calibration data to be downloaded
to the power meter automatically.
Using calibration factors enables you to achieve improved measurement
accuracy. This section describes making continuous wave measurements
using the N8480 Series power sensors (excluding Option CFT).
Making a measurement requires the following steps:
1 Zero and calibrate the power meter/sensor combination.
2 Set the frequency for the signal you want to measure.
3 Make the measurement.
Procedure
1 First, zero and calibrate the power meter/sensor combination.
2 Ensure the power sensor is disconnected from any signal source.Press
3 Connect the power sensor to the POWER REF output.Press
You can reduce the steps required to carry out the zero and calibration procedure as
N O T E
follows:
1 Connect the power sensor to the POWER REF output.
2 Press
152
and the channel
Cal
softkey to start the calibration routine. The Calibrating
the channel
pop- up is then displayed.
Zero + Cal
and
Zero + Cal Zero + Cal A
,
Zero
softkey. The Zeroing pop- up is displayed.
. (For dual channel meters, press
Zero + Cal B
or as required).
N1913/1914A EPM Series Power Meters User's Guide
and