Cmu-b85 speech codec option, Modulation analyzer – Atec R-S-CMU200 User Manual

Page 25

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Version 09.00, October 2008

R&S

®

CMU200 Universal Radio Communication Tester

25

Modulation analyzer

Level range

HPSK, O-QPSK signal

f < 2200 MHz

–40 dBm to +44 dBm

RF 1

f

≥ 2200 MHz

–34 dBm to +44 dBm

f < 2200 MHz

–54 dBm to +30 dBm

RF 2

f

≥ 2200 MHz

–48 dBm to +30 dBm

f < 2200 MHz

–80 dBm to –9 dBm

RF 4 IN

f

≥ 2200 MHz

–74 dBm to –9 dBm

RC1, RC2 (O-QPSK)

waveform quality, error vector magnitude,
magnitude error, phase error

Waveform quality (

ρ) uncertainty

for

ρ 0.9 to 1

<0.003

Frequency measurement range

–3 kHz to +3 kHz

f < 2200 MHz

<10 Hz + drift of timebase
see base unit specifications

Frequency measurement uncertainty

f

≥ 2200 MHz

<15 Hz + drift of timebase
see base unit specifications

RC3, RC4 (HPSK)

waveform quality, error vector magnitude,
magnitude error, phase error,
channel power, code domain power,
peak code domain error power

Waveform quality (

ρ) uncertainty

for

ρ 0.9 to 1

<0.003

Frequency measurement range

–3 kHz to +3 kHz

Frequency measurement uncertainty

<10 Hz + drift of timebase,
see base unit specifications

Relative measurement uncertainty

result > –33 dB

<0.1 dB

Measurements

Modulation

overview
EVM versus time, graphical
ME versus time, graphical
PE versus time, graphical
I/Q analyzer

Power

standby/access-probe

power

open loop time response
gated output power
max. output power
min. output power
power versus frame
smart alignment
narrowband power

Spectrum

adjacent channel power

Code domain power

code domain power
code domain error power
channel power
time/phase offset relative to pilot

Receiver

FER for FCH, SCH
RLP/throughput statistics
forward power control

R&S

®

CMU-B85 speech codec option

Speech decoder output

SPEECH HANDSET OUT

9-pin D-Sub connector

Output impedance

<10

Max. output current

20 mA, peak

Full-range output level

1 V, peak

Speech coder input

SPEECH HANDSET IN

9-pin D-Sub connector

Input impedance

100 k

low sensitivity

1.4 V, peak

Full-range input level

high sensitivity

0.1 V, peak

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