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 up to 100 Mbps
Receiver and transmitter can be tuned independently
Receiver sensitivity: -115dBm (@1MHz signal bandwidth)
Maximum RF output power: 2W


2.92mm gold plated RF connectors
Space Qualified connectors
DVB-S2 Baseband Frames over LVDS
Optional ASI
Additional TM/TC over CAN and RS485
Debug and PC control over GbE or USB

power supply

Transmitter: 16W
Receiver: 9W
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 design
ECSS compliant design


• Mass 1.5 kg
• Volume < 1.5 U


LEO CubeSat space missions
FSS telecommunications
Satellite Communications-on-theMove
Unmanned remote control
HTS Terminals
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)