Atec Anritsu-S332D-31D - Manual (Page 6)

Adjacent Channel Power Ratio
A common transmitter measurement is that of adjacent channel leakage power.
This is the ratio of the amount of leakage power in an adjacent channel to the
total transmitted power in the main channel. This measurement is used to
replace the traditional two-tone intermodulation distortion (IMD) test for system
non-linear behavior.
The result of an ACPR measurement can be expressed either as a power ratio or
a power density. In order to calculate the upper and lower adjacent channel
values, the S332D allow the adjustment of four parameters to meet specific
measurement needs: main channel center frequency, measurement channel
bandwidth, adjacent channel bandwidth and channel spacing. When an air
interface standard is specified in the S332D, all these values are automatically set
to the normal values for that standard.
AM/FM/SSB Demodulator
A built-in demodulator for AM, narrowband FM, wideband FM and single sideband
(selectable USB and LSB) allow a technician to easily identify interfering signals.
6 GHz Measurements
The FCN4760 is a block down converter for the 4.7 to 6.0 GHz frequency range.
Is is designed to work with an Anritsu Site Master S332D equipped with Option 6.
This converter is primarily intended for field use by fixed wireless engineers
who are responsible for the design, deployment and optimization of 802.11a
networks. It is also used to conduct interference analysis measurements to
determine the level of interference and locate the sources of interference.
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Spectrum Analysis – Anywhere, Anytime (S332D)
The Site Master S332D integrated Spectrum Analysis capability provides the “ultimate” in measurement flexibility for
field environments and applications requiring mobility. With the S332D you can locate, identify, record and solve
communication systems problems quickly and easily, and with incredible accuracy – making it a perfect solution for
conducting field measurements in the 100 kHz to 3 GHz frequency range.
One Button Measurements
The S332D has dedicated routines for one-button measurements of field strength, channel power, occupied bandwidth,
Adjacent Channel Power Ratio (ACPR), Carrier-to-Interference, and interference analysis. These are increasingly critical
measurements for today’s wireless communication systems. The simple interface for these complex measurements
significantly reduces test time and increases analyzer usability.
Occupied Bandwidth
This measurement calculates the bandwidth containing the total integrated
power occupied in a given signal bandwidth. There are two different methods
of calculation depending on the technique used to modulate the carrier. The
user can specify percent of power or the “x” dB down point, where “x” can be
from 1 dB to 120 dB below the carrier.
Frequency Converter
Control Module