TELEMETRIX 400 CHANNEL SIMULATOR (T400CS)
OVERVIEW
 The Telemetrix® Channel Simulator (T400CS) is a powerful, yet economical communications link simulator. The T400CS emulates the channel characteristics of a communications uplink/downlink propagation path. Time delay, Doppler, range attenuation, and fading are emulated in a smooth and phase-continuous manner. The T400CS provides Intermediate Frequency (IF) or Radio Frequency (RF) inputs/outputs at the standard frequency bands and requires no knowledge of the signal waveform.

APPLICATION
 The T400CS supports channel effect emulation for training and test applications without requiring expensive satellite transponder bandwidth. The T400CS enables accurate and repeatable testing and verification of modern network management systems that depend on the round-trip time delays between earth terminals to operate correctly. The same channel response can be used repetitively while modifications are made to the modems and/or network management algorithms. Furthermore, the extremes of expected link conditions are easily emulated in a repeatable and consistent manner to enable performance evaluation of communication equipment.

Performance Testing

Training

Diversity Combining Testing

Dynamic TDMA Testing (DVB-RCS)

Realistic Loopback Testing
FEATURES
Satellite Simulation
  • LEO
  • MEO
  • GEO
Scenarios
  • User-Defined Profiles
  • Propagation Model
Communication Link Effects
  • Time Delay
  • Doppler
  • Range Attenuation
  • Fading
  • AWGN
Link Emulation
  • Static
  • Range-Correlated Dynamic Effects
 IF Input/Output Interfaces
  • 70 MHz
  • L-Band
RF Input/Output Interfaces
  • UHF
  • S-Band
  • C-Band
  • X-Band
  • Ku-Band
Control And Status Interface
  • Local GUI Via Keyboard And Monitor
  • Remote Via Ethernet
BLOCK
DIAGRAM


SPECS
Input/Output Frequencies (IF Options)
  • 70 MHz: 50 MHz To 90 MHz
  • L-Band: 950 MHz To 1750 MHz
Input/Output Frequencies (RF Options)
  • UHF: 250 MHz To 280 MHz and 290 MHz To 320 MHz
  • L/S-Band: 1650 MHz To 2400 MHz
  • C-Band: 3.4 GHz To 4.2 GHz and 5.85 GHz To 6.425 GHz
  • X-Band: 7.25 GHz To 7.75 GHz and 7.9 GHz To 8.4 GHz
  • Ku-Band: 10.7 GHz To 11.5 GHZ and 13.75 GHz To 14.5 GHz
Instantaneous Bandwidth: 40 MHz

 Time Delay
  • 1 msec To 500 msec
  • Phase Continuous
  • < 1 nsec Resolution
Doppler
  • 0 kHz ± 500 kHz
  • Phase Continuous
  • < 1 Hz Resolution
Range Attenuation: Up To 60 dB

Fading
  • Up To 30 dB Within A Profile
  • < 0.5 dB Resolution
  • Phase Continuous
Instantaneous Dynamic Range: 40 dB

Amplitude Response: ±0.5 dB