GPS Head-end Amplifier System [Antenna Receiver Decoder]
Certain installations require the GPS Antenna to be mounted a long distance from the Master Clock or Timing System it is feeding. This may be due to a complex cable route or the location in a tall building.
The GPS Head-end Amplifier System consists of a GPS Head-end Antenna Receiver linked to a GPS Decoder module fitted into the M210 or M211 Timing System.
This configuration overcomes the signal loss experienced when routing the GPS L1 carrier over long cable lengths up to 400m (coaxial compatible version) or 1km (cat 5 compatible version).
The Antenna/Receiver weatherproof unit houses both the GPS Antenna and Receiver together with a modulator module. This converts the L1 carrier into a modulated 2MHz signal transporting all data necessary to synchronise the timing system to GPS.
Through reception of the transmissions from the Global Positioning System (GPS) constellation of satellites, very accurate time and positional information is available throughout the world.
The GPS Decoder Module resides in the Timing System receiving and decoding transmissions from the Antenna/Receiver, allowing the timing system to accurately synchronise to Universal Coordinated Time (UTC).
Local time can be derived from UTC at user selection through use of the timing system menus. The menus also allow examination of time, position and satellite status information.
The system also includes alarm changeover contacts that indicate loss of GPS synchronisation, power fail and failure of the timing system. These alarms allow external monitoring of system performance.
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