Raytheon has secured a ten-year contract worth up to $663m to deliver troposcatter communication systems to the US Army.

Under the indefinite-delivery indefinite-quantity contract, Raytheon will ensure troops have access to secure voice and data communications in contested environments.

Raytheon Intelligence, Information and Services president Dave Wajsgras said: “Soldiers on the front lines can’t afford dropped calls. Our solution, a secure, reliable and wireless troposcatter system, allows troops to communicate in areas that would otherwise be dead zones.

“Importantly, it also gives the military a way to communicate in satellite-denied environments.”

Raytheon’s troposcatter technology uses particles that make up the Earth’s atmosphere as a reflector for radio signals, which are aimed above the horizon in the direction of a receiver station.

“Responders facing a lack of reliable communications after a natural disaster can deploy a troposcatter system to quickly establish networks even when no power is available.”

Some of the energy is scattered back toward the Earth, as the signals pass through the troposphere, allowing the receiver station to pick up the signal. This creates a secure communications network without the need for cellular towers or satellites.

Troposcatter systems are also ideal for crisis response.

Responders facing a lack of reliable communications after a natural disaster can deploy a troposcatter system to quickly establish networks even when no power is available.

Raytheon IIS vice-president Todd Probert said: “Think about any natural disaster over the last several years; one of the biggest problems is a lack of reliable communications.

“A troposcatter system easily can be deployed anywhere in the world and can transfer data at extremely high rates, the equivalent to streaming ten high-definition videos simultaneously at a range of more than 115 miles.”

The troposcatter system units are expected to be delivered to the US Army  by the end of this year.