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Coast Watcher 100

Description of the radar set, tactical-technical characteristics

Figure 1: Coast Watcher 100 at the Mount Coudon, near Toulon (France)
© 2016 Thales

Figure 1: Coast Watcher 100 at the Mount Coudon, near Toulon (France)
(43°09'37.4" N   6°00'30.9" E)
© 2016 Thales

frequency: X-band
pulse repetition time (PRT):
pulse repetition frequency (PRF):
pulsewidth (τ):
receiving time:
dead time:
peak power: up to 1.2 kW
average power:
instrumented range: up to 100 NM (≙ 185 km)
range resolution: 4 m
beamwidth: 0.6°
hits per scan:
antenna rotation: 6-10 rpm
MTBCF: 1 year

Coast Watcher 100

Coast Watcher 100 is an X-band long-range air and surface coastal surveillance radar designed for security missions (piracy, terrorism, illegal immigration, illegal fishery, trafficking, assets intrusion … ). Coast Watcher 100 provides an excellent detection of air and surface small targets even in harsh environment. It’s range profile function (high range resolution) allows a target classification. It has an outstanding operational availability (one preventive maintenance per year) thanks to its solid-state transmitter and reconfigurable processings. A military version (with ECCM features) is available.

The Radar uses a Gregory antenna system. The parabolic reflectors are made of Carbon fiber reinforced plastic. If the boom with the feed horn is at the top of the reflector as shown in Figure 1, then the antenna radiates an inverse cosecant squared pattern.

Coast Watcher 100 is e.g. delivered to Mexico and Vietnam.

Picture gallery of Coast Watcher 100

Figure 2: Coast Watcher 100 mounted for a Cosecant Squared Pattern