HARDWARE / PRODUCTUpdated 24 Jul 2026

SRS-4

Satlab A/S
SRS-4

The Satlab SRS-4 is a full-duplex S-band transceiver for micro- and nano-satellites, supporting high-speed data transfer with BPSK, QPSK, and 8PSK modulation.

Key figurescomparable across the catalogue

Mass
0.253 kg
Power
1.5 W
Largest dimension
93 mm
TRL
9

Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.

As published by the supplier

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)
Supply voltage
5.1 to 28.8 V
Typical power consumption (6 V input, 20℃)
RX: 1.5 W (5 MBd) RX+TX: 10.8 W (5 MBd, 33 dBm output)
Operating temperature
RX: -40℃ to +85℃ TX: -40℃ to +70℃
Dimensions
93.0 mm × 87.2 mm × 17.5 mm
Mass
253 g
Flight heritage
since 2021
TRL
9

About

The Satlab SRS-4 is a full-duplex S-band transceiver specifically designed for high-speed data transfer applications on micro- and nano-satellites. It operates within the ITU space operations S-band frequencies and supports BPSK, QPSK, and 8PSK modulation schemes. The transceiver incorporates CCSDS recommended channel coding, which facilitates integration with both independent and commercial ground station networks. The SRS-4 has a proven flight heritage dating back to 2021, with over 100 units successfully delivered to customers globally for various space missions. It boasts a Technology Readiness Level (TRL) of 9, indicating it is fully qualified and operational in its intended environment. Custom hardware and software requests can often be accommodated.

Documentation

Need the full ICD, test reports or a specific revision? Ask the supplier directly.

Source: satlab.com ↗

The rest of the range from Satlab A/S

All 7 products →

Communications 4 same category

Payloads & Instruments 1

Radios & Transceivers 1