Cmu-b85 speech codec option, Modulation analyzer – Atec R-S-CMU200 User Manual
Page 25
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
Ω
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
Ω
low sensitivity
1.4 V, peak
Full-range input level
high sensitivity
0.1 V, peak