Atec R-S-CMU200 - Manual (Page 35)

Version 09.00, October 2008 R&S ® CMU200 Universal Radio Communication Tester 35
Trigger signaling mode
Trigger sources free run, external, slot, frame, signaling,
IF power, TPC, preamble, PRACH-MSG
part, compressed mode, change of TFC,
HSDPCCH, auto
Trigger input 15-pin D-Sub connector AUX 3, pin 8 external
Trigger slot delay 0 to 14 slots
Trigger delay offset –10239 to + 10239 × 1/4 chip
Trigger output 15-pin D-Sub connector AUX 3, pins 2 to 4
15-pin D-Sub connector AUX 3, pin 5,
depending on signaling state and trigger
source frame, slot, TPC
preamble, PRACH-MSG part, compressed
mode, change of TFC, HSDPCCH
Modulation analysis
Measurement filter receiver filter in line with standard 3.84 MHz, RRC, α = 0.22
Analysis modes QPSK, WCDMA uplink
Input level range
continuous power 3 –21 dBm to +47 dBm RF 1
peak envelope power 4 (PEP) –16 dBm to +53 dBm
continuous power –35 dBm to +33 dBm RF 2
peak envelope power 4 (PEP) –30 dBm to +39 dBm
RF 4 IN continuous power and PEP –50 dBm to 0 dBm
Error vector magnitude (EVM)
Measurement range up to 25 %
overview
EVM versus time, graphical
ME versus time, graphical
PE versus time, graphical
Applications
non-signaling mode I/Q analyzer
Measured parameters error vector magnitude
magnitude error
phase error
I/Q origin offset
I/Q imbalance
peak code domain error
waveform quality
RF Attenuation → Low Noise <2.5 %, rms
RF Attenuation → Low Noise
with R&S ® CMU-Z6 calibration
and f < 2200 MHz
<1.5 %, rms
Inherent EVM
RF Attenuation → Low Noise
with R&S ® CMU-Z6 calibration and
f ≥ 2200 MHz
<2.5 %, rms
Resolution 0.1 %
QPSK mode 1 timeslot (2560 chips)
1/4 timeslot (640 chips) Measurement length
WCDMA mode 1 timeslot
Marker in graphical menus reference, Abs1, Abs2, D-line
Frequency error
Measurement range ±3 kHz
f < 2200 MHz
and max. value of 10 slots <10 Hz + drift of timebase,
see base unit specifications Uncertainty
f ≥ 2200 MHz
and average value of 10 slots
<10 Hz + drift of timebase,
see base unit specifications
Resolution 1 Hz
I/Q offset
Inherent I/Q offset <–55 dB
Resolution 0.01 dB