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Cdma2000, Rf analyzer (r&s, Cmw-km800 option) – Atec Rohde-Schwarz-CMW500 User Manual

Page 60: Modulation analysis

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Version 11.00, May 2013

60

Rohde & Schwarz R&S

®

CMW500 Wideband Radio Communication Tester

CDMA2000

®

RF analyzer (R&S

®

CMW-KM800 option)

Frequency range

band class 0

815.025 MHz to 848.985 MHz

band class 1

1850.000 MHz to 1910.000 MHz

band class 2

872.0125 MHz to 914.9875 MHz

band class 3

887.0125 MHz to 924.9875 MHz

band class 4

1750.000 MHz to 1780.000 MHz

band class 5

411.675 MHz to 483.480 MHz

band class 6

1920.000 MHz to 1979.950 MHz

band class 7

776.000 MHz to 794.000 MHz

band class 8

1710.000 MHz to 1784.950 MHz

band class 9

880.000 MHz to 913.750 MHz

band class 10

806.000 MHz to 900.975 MHz

band class 11

411.675 MHz to 483.475 MHz

band class 12

870.0125 MHz to 875.9875 MHz

band class 13

2500.000 MHz to 2570.000 MHz

band class 14

1850.000 MHz to 1915.000 MHz

band class 15

1710.000 MHz to 1755.000 MHz

band class 16

2502.000 MHz to 2568.000 MHz

band class 17

2502.000 MHz to 2567.950 MHz

band class 18

787.000 MHz to 700.000 MHz

band class 19

698.000 MHz to 716.000 MHz

Statistics

Statistical count

1 to 1000

Values

current, average, minimum/maximum,
standard deviation

Trigger

Trigger sources

BASE: external TRIG A,
BASE: external TRIG B,
GPRF: BB generator,
C2K: free run

Modulation analysis

Filter

1.23 MHz, RRC, α = 0.22, CDMA filter

Level range

–28 dBm to +42 dBm

46

Analysis modes

OQPSK,

HPSK

Measured parameters

numeric results and standard deviation

error vector magnitude (EVM),
magnitude error (ME),
phase error (PE),
frequency error,
rho,
carrier feedthrough,
I/Q imbalance,
power,
wideband power (8 MHz),
narrowband power (1.23 MHz)

graphical

EVM versus time,
ME versus time,
PE versus time

Waveform quality (rho)

Uncertainty

for rho 0.9 to 1

< 0.003

Measurement length

616 chip (0.5 ms)

Error vector magnitude (EVM)

Measurement range

up to 25 %, RMS

Inherent EVM

< 2.5 %, RMS

Measurement length

0.5 ms

46

The maximum permissible continuous power is +34 dBm due to thermal limits.