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Telecommunications

Telecommunications. Requirement: Report back to orbiter Antenna: Conical Log Spiral (from Spacecraft Mission Analysis and Design) 7.2 GHz receive band (X-band) Transmit 8.5 GHz Solid State Amp vs TWTA (traveling wave tube amp): Requires more power input

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Telecommunications

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  1. Telecommunications Requirement: Report back to orbiter • Antenna: • Conical Log Spiral (from Spacecraft Mission Analysis and Design) • 7.2 GHz receive band (X-band) • Transmit 8.5 GHz • Solid State Amp vs TWTA (traveling wave tube amp): • Requires more power input • SSA has a lower mass (wt limitations) • more reliable (require lower voltages)

  2. Telecommunications

  3. Telecommunications Total Mass: 9.988 kg Total Power: 66.3W

  4. Field of View Star Tracker Antenna 0.60m apart 0.30 + 0.27 = 0.57m

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