The BigRedBee SBD allows you to send and receive short messages from anywhere on Earth with a clear view of the sky using the Iridium satellite network.  No cell phone / GSM / APRS or other radio service is required.  The integrated GPS and power management features provide a completely self contained system, no external components required. Extremely low idle power consumption means standby time are measured in months with a battery not much larger than the transmitter itself.

At just 1.5" x 1.5", the BigRedBee SBD is the smallest Iridium SBD system available in the world..


             MK20DX256 32-bit Cortex-M4 CPU                  56 channel u-blox MAX-7 GPS module

             Iridium 9603 Data Modem                                Powered by single cell lipo or 12V DC

             Integrated battery charger                                Size:  1.5 x 1.5 + antennas

             Boost Regulator provides 5V at 1A max

             Remote control of transmitter schedules          Custom designs available for nominal charge           


Interested?  Contact us for more details


Block Diagram of base hardware setup:



A picture of an early functional prototype:


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