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.