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Boonton 4540 Peak Power Meter Quick Start User Manual

Page 29

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4540 Power Meter

Quick Start Guide

PN: 98406000A

© Copyright 2008 Boonton

Page 29


The measured result is the average
power of the signal. Since the
graphic display would basically just
show a straight line, measurements
in Modulated Mode use mainly the
Numeric Display Mode.

The example shows a two channel
measurement displaying an average
power of -29.952 dBm at CH 1 and -
40.030 dBm at Ch 2.





Examples of Modulated Signals



CW Signal – Continuous Waveform with static
power level


Amplitude Shift Key – Signal switches between
On and Off State.

Amplitude Modulated Signal – Information is

contained in the amplitude level.

Frequency Modulated Signal – Information is
contained in the frequency shift.


Phase Modulated Signal – Information is
contained in the phase shift.