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CDMA2000 Measurements
R&S
®
CMW-KG8xx/-KM8xx/-KS8xx
719
User Manual 1173.9511.02 ─ 11
Measuring Reverse Link Signals
...........................................................................719
Combined Signaling and Measurement
................................................................719
.................................................................................... 720
.................................................................................... 723
Limit Settings and Conformance Requirements
....................................................727
Multi Evaluation Measurement Results
.................................................................729
..............................................................................................739
.................................................................................743
5.2.1 Test Setup
The external RF signal source (mobile station, signal generator etc.) is connected to
one of the RF input connectors (RF COM) at the front panel of the R&S
CMW. No
additional cabling and no external trigger is needed.
The input level ranges of all RF COM connectors are identical.
See also: "RF Connectors" in the R&S
CMW user manual, chapter "Getting Started"
Fig. 5-1: Connecting an RF transmitter to the instrument
5.2.2 Measuring Reverse Link Signals
After physically connecting the CDMA2000 MS to the R&S
CMW, first make sure the
long code mask of the device is set to "all zero".
Then adjust the following analyzer settings to the properties of the reverse link
CDMA2000 signal:
●
the analyzer frequency
●
the expected nominal power" and - if required - a user margin and external attenu-
ation. Recommended values: expected nominal power = peak power of the MS sig-
nal over the entire measurement range; user margin = 9 dB
●
the radio configuration and spreading factor (max. Walsh Code length)
5.2.3 Combined Signaling and Measurement
The TX measurement can be used in conjunction with the CDMA2000 signaling appli-
cation (option R&S CMW-KS800), i.e. a connection to the MS can be set up by the sig-
General Description
深圳德标仪器
135-1095-0799