Anritsu Spectrum Master MS2720T, Руководство пользователя

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3GPP2 MG PN: 10580-00235 Rev. D 2-1
Chapter 2 — CDMA Signal Analyzer
2-1 Introduction
The instrument offers three CDMA measurement options:
• cdmaOne/CDMA2000 1X RF measurements
• cdmaOne/CDMA2000 1X demodulation
• cdmaOne/CDMA2000 1X Over-the-Air (OTA) measurements, requires Option 31
The instrument can measure CDMA signals over the air (OTA) with an antenna or by directly
connecting the instrument to the base station.
2-2 General Measurement Setup
Please refer to the User Guide for information on selecting the CDMA Signal Analyzer mode,
setting up frequency, amplitude, power loss for compensating external loss, limit lines,
markers, and file management.
2-3 CDMA Measurement Setup
Anritsu instruments can measure CDMA performance over the air with an antenna, or by
connecting the base station directly.
To measure a CDMA signal over the air, connect the appropriate frequency band antenna to
the instrument’s
RF Input
connector and connect a GPS antenna to the
GPS
connector.
To connect the base station to the instrument, connect the power amplifier of the base station
to the
RF In
port of the instrument using a coupler or attenuator.
Caution
The maximum input damage level of the RF In port is +30 dBm. To prevent
damage always use a coupler or high power attenuator.
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