Agilent Technologies 54503A User's Guide Page 128

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128 Chapter2
Making Measurements
Example 10: Power Measurement Functions
Stepping through a Carrier Power Measurement
A carrier power measurement will be made on a typical cellular radio
signal. The signal should be a burst RF signal with about a 20 ms burst
period.
1. Connect the burst RF signal to the input of the spectrum analyzer.
2. Press
FREQUENCY and set the spectrum analyzer center frequency
to the carrier frequency of the signal.
3. Press AMPLITUDE and set the reference level a few dB higher than
the expected carrier level.
4. On the spectrum analyzer, set:
Resolution bandwidth............................................... 100 kHz
Video bandwidth........................................................... 3 MHz
Span ..................................................................................0 Hz
Sweep time ................40 ms (for typical 20 ms burst period)
5. Press
MEAS/USER, CARRIER PWR MENU and AVG "ON" POWER.
Notice the carrier power value on the display. Press
PREV MENU.
6. Press
AVG "OFF" POWER and notice the carrier power value on the
display. This is the leakage power present when the burst is off.
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