Polaris LoRa Receiver

The Satlab Polaris LoRa is a fully self-contained software-defined radio receiver for 868 MHz ISM band LoRa messages, with integrated demodulator and storage.

This versatile SDR offers excellent performance given the typical size, weight and power constraints of a CubeSat - or as an additional payload on larger LEO satellites.

The Polaris LoRa receiver is built on Satlab’s second generation SDR platform, based on the in-orbit experience gained from the QubeAIS receiver, which has flown on several missions since 2013.


Key Parameters

Frequency coverage865.000 to 870.000 MHz
Bandwidth125.000 kHz
Spreading factors (SF)8 and 9
Coding rate (CR)1, 2, 3 and 4
Payload length2 to 250 bytes
Sensitivity-130 dBm (99% reception rate, SF9 with CR4)
Frame store capacity130000 frames
Input voltage4.5 to 40 V
Typical power consumption1500 mW (5 V input, 25℃)
Operating temperature-40℃ to +85℃
CAN-busUp to 1 Mbit/s
RS-422Full duplex, up to 3 Mbit/s
EthernetFull duplex, 100 Mbit/s
Primary storage128 MB NOR-flash
Secondary storage1 GB SLC SD card
Dimensions93.0 x 87.2 x 12.5 mm
Mass185 g

Qualification status

Thermal soak-40 to +85℃
Vibration testing14.1 Grms
TID20 krad(Si) board level

Additional resources


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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