Text Size

Tracking and Data Relay Satellite (TDRS) Second Generation Capabilities
Circular polarization (LHC or RHC) Ka-band Ku-band S-band Tri-frequency communications Single Access Antenna Modified frequency plan allows collocation Perpendicular, linear polarization WSC/GRGT-TDRS uplink/downlink 2.4 meter Ku-band antenna Space-Ground Link Antenna Solar Panels Improved monitoring Autonomous recovery from anomalies On-board SA antenna control On-Board Operational Enhancements LHC polarization S-band TT&C Omni Antenna Solar Panels Single Access Antenna ± 13° conical field-of-view LHC polarization S-band communications 15 transmit antenna elements 32 receive antenna elements Multiple Access Antenna

Capabilities of the second generation TDRS


TDRS H Launch

TDRS-H Launch

Capabilities Include:

Multiple Access Antenna

  • 32 receive antenna elements
  • 15 transmit antenna elements
  • S-band communications
  • Left Hand Circular (LHC) polarization
  • ± 13° conical field-of-view
Solar Panels (2)

Space-to-Ground Link Antenna
  • 2.4 meter Ku-band antenna
  • White Sands Complex (WSC)/Guam Remote Ground Terminal (GRGT)-TDRS uplink/downlink
  • Perpendicular, linear polarization
  • Modified frequency plan allows collocation
Single Access Antenna (2)
  • Tri-frequency communications
    • S-band
    • Ku-band
    • Ka-band
  • Circular polarization (Left Hand Circular (LHC) or Right Hand Circular (RHC))
On-Board Operational Enhancements
  • On-board Single Access (SA) antenna control
  • Autonomous recovery from anomalies
  • Improved monitoring
Omni Antenna
  • S-band Telemetry, Tracking and Command (TT&C)
  • Left Hand Circular (LHC) polarization

› Back To Top