S-Band Transceiver

Overview
• Product Description

• Recent deliveries include:
  
  • MSI
  • MSCI
• Key Technical Performance:
  
  • 660 gram design
  • Modular design supports easy integration
  • STDN, SGLS protocols fully supported
  • Up to 10 kpbs Rx, over 2 Mbps Tx

Comtech AeroAstro's compact, lightweight S-Band transceivers can be ordered for STDN, SGLS, or USB protocols and are designed to provide affordable and reliable telemetry and command uplink for nanosatellites and microsatellites. The unit includes latch-up detection and mitigation circuitry for applications with higher radiation exposure.

The transceiver is designed to be compatible with a wide variety of satellite bus systems. The transmitter, receiver, and high-power amplifier (HPA) (optional) are each 3 in. × 2 in. × 1 in. separate packages, providing a variety of placement configurations for tight spaces. Each of the three packages weighs less than 200g (weight varies slightly by configuration).

The receiver runs at bit rates from 1–8 kbps and consumes less than 800 mW. Higher data rates using QPSK are an available option. The transmitter provides downlink rates from 1 kbps up to 10 Mbps with the optional HPA. The transmitter output power is 500 mW while the HPA is rated at 5W. There is a tone ranging channel output to implement either a non-coherent or coherent transponder function. A DC/DC converter module is also available to provide an interface to a +28 Vdc power bus.

Comtech AeroAstro built three SGLS S-band transmitters in support of the NeosSat mission for the Canadian Space Agency and Microsat Systems Canada, Inc. We have previously delivered a STDL S-band transmitter to Sierra Nevada Corporation, formerly MSI. Both of these missions are awaiting launch.