Operating Your Instrument
2
Keysight 53147A/148A/149A Operating and Programming Guide
97
11 Disconnect the power-head input connector from the Power Meter Output
connector and connect it to the signal to be measured.
The Power Meter measures the signal power and displays it, as shown below:
12 To measure the signal power in Watts, press the Shift key, and then press
the dBm/W (Display Power) key.
When you press the
Shift
key, the
Shift
annunciator is activated. When you
press the
dBm/W
(
Display Power
) key, the
Shift
annunciator goes off, and the
units of measurement annunciator group to the right of the digital power
measurement changes from dB or dBm to Watts, mW,
μ
W, or nW, as shown
below:
Modifying and Adding Calibration Factor Tables
The
HEAD
menu option provides access to preconfigured, editable
calibration-factor tables for five models of Keysight power-sensor heads (models
8481A, 8481D, 8482A, 8485A, and 8487A) and three custom tables. You can
modify the frequency/calibration-factor values in any of the data points for any
power head, and you can input data to build new calibration tables (
CUST 1
,
CUST 2
, and
CUST 3
shows the changes you can and cannot make to
the various data points in the five factory-configured calibration-factor tables (for
models 8481A, 8481D, 8482A, 8485A, and 8487A) and the three custom
calibration tables (
CUST 1
,
CUST 2
, and
CUST 3
).
dB
dBm
Watts
mW
uW
%
Pwr
Ch 2
Freq
dB
dBm
Watts
mW
uW
%
Rel
Pwr
Ch 2
Freq
Содержание 53147A
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