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Spread Spectrum, Board Level radio for Unmanned Systems
FreeWave Technologies is introducing a new, board-level, wireless spread
spectrum radio designed specifically for military applications. The module
weighs 74.4 gram.
The IM-E500 enables manufacturers of military systems to incorporate wireless
communications into a wide variety of applications, such as unmanned vehicles,
robotics and UAVs.
The new radio uses spread spectrum frequencies between 2.372 to 2.4 GHz, with a
230 Khz. bandwidth, communicating over distances up to 20 miles. Each radio
provides both repeater and slave functions, effectively bridging communications
over longer ranges.
The radio offers effective (true) throughput of 115.2 Kbps, (188 Kbps over the
air). It uses frequency hopping (15 per band, 105 total user selectable patterns
over 75 - 80 selectabnle channels) and 32 CRC bit to enable high reliability and
secure data transfer. The radio can operate in transmit, receive idle or sleep
mode, to conserve power. A unit in sleep mode will wake up, synchronize with the
network, and accept data in less than 150 milliseconds.