SRS-3 Full-duplex S-band Transceiver

The Satlab SRS-3 is a full-duplex, low-power, S-band transceiver designed for TM & TC on micro- and nano-satellites.

The self-contained system operates on the ITU space operations S-band frequencies and features integrated transmit and receive filters, LNA and power amplifier, requiring only passive external antennas.

SRS-3 is highly configurable, with transmit and receive frequencies, bit rates, output power and framing configurations being adjustable on-orbit.

Features

Variable transmit symbol rate up to 512 kbps
Variable receive symbol rate up to 128 kbps
Configurable forward error correction and framing
Adjustable output power up to 30 dBm with Automatic Level Control (ALC)
On-board PA, LNA, transmit and receive filters
CAN-bus and RS-422 interfaces using CubeSat Space Protocol (CSP)
Ethernet interface with IP routing
AES-256-GCM link-layer encryption and authentication
Wide supply voltage range with over-current protection and external watchdog timer
CubeSat Kit form factor compatible aluminum enclosure
Delivered with source-level software support library for easy integration

Key Parameters

Parameter	Specification
Transmitter frequency range	2200 to 2290 MHz
Transmitter symbol rate	9.6 to 512 kBd
Transmitter power	Adjustable 20 to 30 dBm, with ALC
Receiver frequency range	2025 to 2110 MHz
Receiver symbol rate	9.6 to 128 kBd
Receiver sensitivity	-107 dBm (<1% PER, 128 kBd, BT=0.5)
Modulation	GMSK
Supply voltage	5 to 40 V
Typical power consumption (5 V input, 20℃, 30 dBm)	Awaiting frames: 550 mW Full-duplex transmit and receive: 5.0 W
Operating temperature	RX: -40℃ to +85℃ TX: -40℃ to +70℃
Dimensions	87.0 × 93.0 × 17.0 mm
Mass	190 g

Additional Resources

Customization

Custom hardware and software requests can often be accommodated. Please see the R&D section

Price and lead time on request

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