Motorola Now Shipping APX Multi-band Two-Way Radios

Motorola is now shipping APX 7000 two-way radios, enabling instant multi-agency interoperability for mission critical first responders. The industry’s first Project 25 (P25) multi-band (700/800 MHz and VHF) subscriber family, ...

LED lights build communication network

(PhysOrg.com) -- Imagine a world where bright, energy-sipping, cheap, durable LEDs light the world. A world where if you have enough light to see, you are connected. The University of California, Riverside will lead a multi-campus ...

Ulysses space mission to end

After 18.6 years in space and defying several earlier expectations of its demise, the joint ESA/NASA solar orbiter Ulysses will achieve 'end of mission' on 30 June 2009. The final communication pass with a ground station ...

Averting radio spectrum saturation, opportunistically

(PhysOrg.com) -- Mobile users want better video calls, streaming television and faster downloads, placing more demands on the limited radio spectrum available to operators. Could handsets that intelligently sense their radio ...

Random Antenna Arrays Boost Emergency Communications

(PhysOrg.com) -- First responders could boost their radio communications quickly at a disaster site by setting out just four extra transmitters in a random arrangement to significantly increase the signal power at the receiver, ...

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