Real-Time Channel Simulator DT4630 RTSIM

Stand-alone operation with touch-screen  

• High-reliability hardware built for continuous operation
• Full remote control via remote front panel GUI
• Remote scripting capability for simulation setup automation
• Easy software update of complete device via USB stick or CD
• Channel simulation according to the Watterson model described in ITU-R F.1487
• Direct conversion architecture with full HF band support (1 MHz to 30 MHz)
• Simulation bandwidth of 1.6 MHz
• Clock synchronization to external 10 MHz reference clock signal
• Very little processing delay (below 50 μs)

RF input and output

• Analogue RF input (50 Ω), max. input level of +10 dBm
• Direct sampling ADC with 100 MS/s
• Analogue RF output (50 Ω), max. output level of -20 dBm
• RF input and output range from 1 MHz to 30 MHz
• Configurable output attenuation of up to 127 dB
• Synchronization to external 10 MHz reference clock signal (e.g. GPS)

Real-time channel simulation

• Simulation bandwidth of 1.6 MHz
• Multipath simulation of up to four paths
• All path individually configurable for paths delay, Doppler spread, Doppler shift and attenuation
• Tapped delay line processing for delays up to 20 ms
• Doppler spread configurable from 0 Hz to 75 Hz
• Doppler shift configurable from 0 Hz to ±100 Hz
• Relative path attenuation configurable from 0 dB to 20 dB
• Signal output can be charged with white Gaussian noise (AWGN) from -160 dBm/Hz to -20 dBm/Hz

Control interfaces

• Front panel GUI with touch-screen and keypads for direct device configuration
• Remote front panel GUI executable for Win32 (portable application: no installation required, for easy use it can be copied e.g. to a USB stick and run from there)
• Compact web interface for remote control
• Remote scripting capability for simulation setup automation