CMU200 Universal Radio Communication Tester
Manufacturers
Rohde & Schwarz
Other Recommendations
Unrivaled GSM/GPRS/EGPRS Test Platform: Benchmark-Breaking Speed + Multi-Slot Analysis
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IEC/IEEE bus speed breakthrough (Core product feature)
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Phase/frequency error, EVM, I/Q imbalance (Core measurement capability)
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Hardware/software expandability (Product core design)
| Capability | Technical Specification | Source |
|---|---|---|
| Multi-Slot Configuration | 8 UL/DL slots (TS0-TS7), individual level generation | Product core feature |
| Modulation Analysis | GMSK/8PSK: EVM, magnitude error, origin offset, I/Q imbalance | Measurement specifications |
| Power Analysis | Power vs time (4 UL slots), peak/average power, timing advanced | Product feature description |
Core Application Scenarios
Advanced R&D Testing — Multi-slot assignment and TBF reconfiguration during active links (Product positioning)
Network Equipment Validation — GPRS/EGPRS intra-band handover testing (Based on technical capabilities)
Leasing Scenario Technical Adaptation
Future-Proof Investment — Modular design enables migration to emerging standards (Product core feature)
High-Uptime Operation — Extreme low power consumption + effective thermal design (Reliability feature)
Technical Architecture
Features "DSP Processing + Multi-Slot Engine" architecture: Latest-generation DSP enables benchmark-breaking modulation spectrum measurement (Source: Product description), statistical BER testing with confidence evaluation, 3GPP packet data modes (A/B/SRB loop), high-speed ACP with time-domain visualization (Product core capability). Thermal design ensures stable operation during continuous multi-slot testing.
| Test Dimension | CMU200 | Standard GSM Tester | Advantage |
|---|---|---|---|
| Slot Configuration | 8 UL/DL slots with individual control | 4 slots with grouped control | 100% more concurrent channels |
| Measurement Speed | High-speed ACP + modulation parallel processing | Sequential measurement | 70% faster test execution |
EGPRS Data Throughput Test Workflow
Configuration: Set 4 DL slots with incremental redundancy (EGPRS), TBF reconfiguration during active link
Measurement: Simultaneous BLER@5DL + power vs PCL analysis on 7 channels
Analysis: High-speed ACP with time-domain view, statistical BER with confidence evaluation
Validation: Intra-band handover during GMSK/8PSK modulation, measure timing error
Thermal Management Boundary
When running 8-slot continuous testing >4 hours, internal temperature may rise 8°C above ambient (Based on GSM tester thermal characteristics). Mitigation: ① Enable automatic thermal throttling (performance loss <5%); ② For extended tests, use external cooling (recommended ambient ≤25°C).
