Miniaturized Ka-Band radio for small satellites


RADIOSAT is the innovative miniaturized transceiver designed for CubeSat and Small Satellites in LEO, with the support of the European Space Agency.

In its own small way, 1.5 U and 1 kg, a Ka-band radio is integrated with a DVB-S2 modem, overall characterized by low power consumption. The usage of this frequency band ensures data rates greater than 20 Mbps, in a less congested spectrum environment. Signals are processed by the modem, which provides Variable and Adaptive Coding and Modulation (VCM, ACM) capabilities.

The radio allows the separate management of the receiver and the transmitter.



Uplink 27.5 – 30 GHz
Downlink 17.8 – 20.2 GHz
Signal bandwidth up to 56 MHz

DVB-S2 modem

VCM / ACM hardware capable (ground segment dependent)
High performance next-generation System-on-Chip


Data rate up to 100Mbps
Receiver and transmitter can be tuned independently
RF received power at the antenna output > -114.8 dBm (@ 1 Mhz)
RF transmitted power at the antenna input up to 1.5 W


Antenna connector type K-2.92mm
Space Qualified connectors
DVB-S2 Baseband Frames (BBFRAMES) over LVDS
Telemetry and Telecommands over CAN, I2C
Debug and PC control over GbE or USB

power supply

Peak consumption < 35 W
Input supply from 3 V to 18 V
Up to 3 input rails with integrated prioritizer
Energy efficient design features and dedicated MCU

work environment

Operating temperature range -20 °C to +70 °C
Non-operating temperature range -30 °C to +90 °C
Radiation tolerant, EMC shielded


Mass < 1 kg
Volume < 1.5 U


LEO CubeSat space missions
FSS telecommunications
Satellite Communications-on-the-Move
Unmanned remote control
Internet of Space

Supported by ESA

Supported by ESA

PICOSATS RADIOSAT project is supported by ESA in the framework of the activity Miniaturised Ka-band FSS Transponder for Small Satellites (contract 4000117224/16/UK/AD)