Keysight Technologies N9321C, User Manual

Page: 85 / 220

77
Functions and Measurements
Making a Power Measurement with USB Power Sensor
Calibrating the power meter every time you cycle the power on and
off.
In most situations, you can press
Zero
to complete the two steps
(zero and cal) together.
Follow the steps below to make a basic average power
measurement.
1 Press
Preset
. (With
Preset Type
of
DFT
)
2 Press
Mode > Power Meter
to access the power meter mode.
3 Zero and calibrate the meter. Press
Zero
to make a Zero operation
of the power sensor followed by a calibration operation.
4 Connect the power sensor to the USB port of N932xC. The
analyzer will recognize the power sensor automatically.
5 Connect the external attenuation, if required, with the power
sensor used.
6 Connect the analyzer to the base station. Connect the power
sensor to the signal to be measured. A typical BTS connection is
after the output of the power amplifier and duplexer. The
connection requires a cable and two Type-N barrel connectors, in
addition to the power sensor and external attenuator.
7 Press
Meas Setup > Disp Range
to set the display range of the
measurement. when it is set to
On
, the display range will be
adjusted automatically according to the signal power dynamic
range. When it is set to Off, press
Top
and
Bottom
to set the display
range manually.
CAUTION
To prevent damage to your sensor, do not exceed the power levels below.
U2000/1/2A +25 dBm (320 mW) average, 20 VDC
+33 dBm (2 W) peak, <10 ms
For more information on the maximum power of U2000 series power
sensors, please refer to the Operating and Service Guide of Keysight U2000
Series USB Power Sensors.