R&S CMU Manual Test Procedure
1100.4903.82 1.19 E-5
RX CDMA2000 Dem odulation
Only with option R&S CMU-K83, R&S CMU-K84, R&S CMU-K85 or R&S CMU-K86:
The CDMA2000 modulation parameter of a RX path is measured.
Preparation: Connect CDMA2000 signal generator to RF2 (test setup RX3).
CDMA RX Measurement for RC1,2(O-QPSK)
The signal generator must be synchronized with the R&S CMU via the 10 MHz
reference frequency.
Control: Signal Generator SMIQ:
Reset
Set Frequency 450.000 MHz, 483.480 MHz CDMA2000 450 MHz
825.03 MHz, 848.31 MHz CDMA2000 Cellular
1850.05 MHz, 1909.95 MHz CDMA2000 PCS
1920.000 MHz, 1979.950 MHz CDMA2000 IMT-2000
Set Level -10 dBm
Select DIGITAL STD IS95
STATE ON
MODE REV_LINK
TRIGGER MODE AUTO
R&S CMU:
CDMA 800 (CDMA 1900) NSig Analyzer/Generator
RF Channel = 1, 2016 CDMA2000 450 MHz
= 1, 777 CDMA2000 Cellular
= 1, 1199 CDMA2000 PCS
= 0, 1199 CDMA2000 IMT-2000
Analyzer Mode MAN
Expected power -10 dBm (Max Level = input level +6dB, to prevent overload in
R&S CMU SW)
RF2
Trigger: FREERUN
Remote:
INP:STAT RF2;
TRIGger[:SEQuence]:SOURce[:OQPSk]FRUN
SENSE:LEVEL:MODE MAN
LEV:MAX -10
[SENSe]:RFANalyzer:FREQuency [MHz]
READ[:SCALar]:MODulation:MQUality:OQPSk?
READ[:SCALar]:MODulation:MQUality:OQPSk?
<MSPower> {Value} dBm
<Waveform Quality> {Value}
<CarrierFrequencyError> {Value} Hz
<TransmitTimeError> {Value} s
<CarrierFeedtrough> {Value} dB
RESERVED NAN
<SidebandSuppresLower> {Value} dB
<SidebandSuppresUpper> {Value} dB
<Bursts Out Of Tolerance> {Value} %
Test:
Measure waveform quality as well as frequency measurement error.
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