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C4iSR: Air

Harris delivers satellite navigation payload for USAF GPS III satellite programme

26 June 2019
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Harris Corporation has delivered the sixth advanced navigation payload to Lockheed Martin contracted for the US Air Force’s (USAF) GPS III satellite programme, the company announced on 11 June.

The payload features a mission data unit (MDU) with a 70% digital design that links transmitters, radiation-hardened processors, and atomic clocks to enhance the navigation signals. The payload is designed to increase the signal power, improves the system’s jamming resistance by eight times, and helps extend the satellite’s durability, according to prime contractor Lockheed Martin. For example, GPS III satellite’s lifespan is expected to reach 15 years, which is 25% longer than any of the 31 GPS satellites currently on orbit.

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