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S-Band Transmitter

AstroComm introduces its S-Band downlink transmitter for satellites. This transmitter provides high-speed downlinks for LEO and MEO missions, offering rates up to 10.0 Mbps manchester-encoded. The transmit power is 10W (downward scalable) provided by a fully solid state power amplifier with 50 Ohm I/O.

The principal differentiators for this product are:

  • Very Competitive prices and leadtimes
  • Data rate up to 10.0 Mbps
  • Data rate switchable
  • QPSK modulation
  • Manchester encoding
  • Design and manufacturing processes in the United States

The transmitter is able to take data and clock inputs from multiple on-board sources using a simple two wire protocol. The transmitter is a direct conversion transmitter and uses low power technology. It is fully qualification tested and ready to fly. The following are the salient features of the Astrocom S-band 10W transmitter.

  • Voltage bus nominal voltage: 28V
  • Frequency of operation: 2.0 Ghz to 2.45 Ghz
  • Modulation: QPSK
  • Power dissipation: 20W typical
  • Frequency accuracy: 10 Khz
  • VSWR at the antenna: 1.5
  • Mass: 800 gm typical
  • Design lifetime: 7 years min
  • Monitored state variables: Temperature, Current consumption, Synthesizer lock status

In addition to this transmitter, AstroComm can custom build any other RF products and offer solutions to various RF-related problems.