Agilent Technologies 53151A ユーザーズマニュアル
Chapter 2 Operating Your Frequency Counter
Measuring Power
2-24
Operating Guide
2
Measuring Power
The Agilent 53150A/53151A/53152A can also measure signal power
(in the same frequency ranges as for frequency measurements) on
Channel 2. The power measurement, which is shown in a dedicated area
of the display, includes a digital readout and an analog representation
that is useful when peaking signals. The display can be configured to show
power in units of dB, dBm, W, mW,
(in the same frequency ranges as for frequency measurements) on
Channel 2. The power measurement, which is shown in a dedicated area
of the display, includes a digital readout and an analog representation
that is useful when peaking signals. The display can be configured to show
power in units of dB, dBm, W, mW,
µW, and percentage (%).
CAUTION
The Channel 2 input path circuits contain sensitive GaAs semiconductors.
To prevent damage to these components, always adhere to standard ESD
(ElectroStatic Discharge) prevention procedures, and ensure that the
maximum power specification for this channel (+27 dBm) is not exceeded.
To prevent damage to these components, always adhere to standard ESD
(ElectroStatic Discharge) prevention procedures, and ensure that the
maximum power specification for this channel (+27 dBm) is not exceeded.
Power Measurement Example
This example assumes that a signal is currently applied to the Channel 2
input connector.
input connector.
1
Press the Display Power key to enable power measurement.
The Pwr annunciator at the left side of the display is activated, and the
Counter’s digital and analog power displays show the power measurement
in dB or dBm (the default units of measurement).
Counter’s digital and analog power displays show the power measurement
in dB or dBm (the default units of measurement).
The display should look like this:
dB
dBm
Watts
mW
uW
%
Ch
1
2
Rel
Freq
Rel
Pwr