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Making Measurements Using Spectrum Analyzer Made
Using the Power Measurement Functions to make Transmitter Measurements
Channel
Power
Measurement
The channel power function measures the total power in the selected
channel bandwidth. The signal can be noise, tones, or a combination of
noise and tones. The channel power function measures the power using an
rms method. Enter the channel bandwidth and activate the channel power
measurement. The spectrum analyzer calculates and displays:
l The total power in
dBmV
(other units selectable)
l The power spectral density in
dBmV/Hz
(other units selectable)
Example: Measure the total power in a signal
1. Connect a signal to the spectrum analyzer’s INPUT 75
Q.
2. Press [FREQUENCY] and enter the frequency of your input signal to place
the signal at the spectrum-analyzer center frequency.
3. Press [AMPLITUDE) and adjust the reference level to bring the signal near
the top of the display.
4.
Press
[MEAS~USER]
and Power Menu to access the power measurement
functions. Press Setup and CHANNEL BANDWDTH Enter the value for
the channel bandwidth. (The spectrum analyzer will use the last entered
value for channel bandwidth, if it is not entered.)
5.
Press CHANNEL SPACING and enter the value for channel spacing. (This
is optional and is only used to set the center frequency step size.)
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