SRS-4 Full-Duplex High-Speed S- band Radio

The Satlab SRS-4 is a full-duplex S-band transceiver designed for high- speed data transfer on micro-and nano-satellites. The transceiver operates on the ITU space operations S-band frequencies with BPSK, QPSK, and 8PSK modulation and CCSDS recommended channel coding, enabling integration with both independent and commercial ground station networks.

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Key Parameters
Transmitter frequency: 2200 to 2290 MHz
Transmitter modulation: BPSK/QPSK/8PSK, 100 kBd to 5 MBd
Transmitter power: 20 to 33 dBm
Receiver frequency: 2025 to 2110 MHz
Receiver modulation: BPSK/QPSK, 100 kBd to 5 MBd
Receiver sensitivity: -122 dBm (<1% PER, 100 kBd BPSK)
Input voltage: 5.1 to 28.8 V
Typical power consumption: (6 V input, 20°C)
RX: 1.5 W (5 MBd) RX+
TX: 10.8 W (5 MBd, 33 dBm output)
Operating temperature:
RX: -40°C to +85°C
TX: -40°C to +70°C
Dimensions: 93.0 mm × 87.2 mm × 17.5 mm

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