The Rohde & Schwarz CTS65 is a digital radio test set engineered for GSM and DECT mobile communication systems in development and field maintenance environments. This modular instrument delivers both automated functional testing and manual measurement capabilities, supporting fast diagnostics across mobile devices and base station equipment. Its high-stability OCXO oscillator ensures precise frequency generation, while dual RF outputs and comprehensive signal analysis functions enable technicians to perform everything from basic functionality verification to detailed component-level troubleshooting.
Technical Specifications
Standards & Frequency Bands
• GSM: 850 MHz, 900 MHz, 1800 MHz, 1900 MHz
• DECT: 1880–1900 MHz
Signal Generation
• High-stability OCXO oscillator for frequency precision
• Independent RF generator with GSM-specific signal synthesis (AFC, RSSI adjustments)
• Dual RF outputs: RF OUT1 and RF OUT2 (-15 dBm to -75 dBm)
Measurement Capabilities
• RF signal analysis and modulation recognition (training sequences, patterns 0–8)
• Bit Error Rate (BER) and error rate measurements
• Receiver parameters: RxLev and RxQual
• Phase, frequency, and modulation error analysis
• Power ramp and timing measurements
• Narrowband spectrum monitoring for I/Q modulator alignment
• Transmitter power measurements
• DECT fixed part (FP) and portable part (PP) measurements in CTR06 service mode
• RF parameter and standard signaling validation
Signaling Functions
• Location updates and call setup/release control
• IMSI, IMEI, power class, and revision level reporting
• SMS point-to-point transmission and reception
• GAP (Generic Access Profile) signaling for DECT
• GPRS signaling support
Physical & Electrical
• Dimensions: 18 × 16 × 14 inches
• Weight: 16 lbs
• Power: 100–240 V AC, 50–60 Hz
– Key Features
• Modular design supports customization and future upgrades
• USB, GPIB, and RS232 interfaces for system integration
• Windows software control and MATLAB instrument driver compatibility
– Typical Applications
• GSM device and base station development testing
• DECT cordless telephone system validation
• Field maintenance and functional troubleshooting
• RF parameter characterization and signaling compliance verification
– Compatibility & Integration
• MATLAB instrument driver support (CTS55/CTS60/CTS65)
• Windows-based remote control software
• Optional CTS65-B1 OCXO oscillator module
• Optional CTS65-K4 GPRS signaling module
