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Chapter 5
Measurements
This chapter describes the measurements available from compatible sensors.
The
section contains in-depth descriptions of some
the measurements possible using Bird power sensors.
Procedures for each compatible sensor can be found in the following sections:
"Wideband RF Power Sensor (WPS) Measurements" on page 48
.
"7020 Sensor Measurements" on page 51
"Directional Power Sensor (DPS) Measurements" on page 52
.
"Statistical Power Sensor Measurements" on page 54
.
"Antenna and Cable Monitor (ACMI) Measurements" on page 59
.
"Broadcast Power Monitor (BPM) Measurements" on page 62
"Channel Power Monitor (CPM) Measurements" on page 65
.
Measurement Descriptions
This section provides in-depth descriptions of some the measurements possible
using Bird power sensors.
Average Power
All Sensors
Average power is a measure of the equivalent “heating” power of a signal, as
measured with a calorimeter. It measures the total RF power in the system, and
does not depend on number of carriers or modulation scheme. The WPS is a
broadband sensor that measures power across its entire frequency range. Its
diodes operate in their ‘square law’ region so that the detector output is directly
proportional to the average power, without any additional error correction.