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Merlin

Description of the radar set, tactical-technical characteristics

Figure 1: Merlin Aircraft Birdstrike Avoidance Radar system at the Durban International Airport, South Africa (2007)

Figure 1: Merlin Aircraft Birdstrike Avoidance Radar system at the Durban International Airport, South Africa (2007)

Specifications
frequency: S & X-Band
pulse repetition time (PRT):
pulse repetition frequency (PRF):
pulsewidth (τ):
receive time:
dead time:
peak power:
average power:
instrumented range: 2 … 4 NM
(≙ 3.4 … 7.5 km)
range resolution:
accuracy:
beamwidth:
hits per scan:
antenna rotation:
MTBCF:
MTTR:

Merlin

The Merlin is a simultaneous operating in S- and X-Band dual scanning, solid state aircraft birdstrike avoidance radar.

The radar should be located at mid-field on the primary runway. It uses two large rotating antennas - the S-Band antenna rotates horizontally and scans 360 degrees around the site. The second antenna is a wide-beam X-Band radar and rotates vertically (like a wind mill) and scans a hemisphere above the runway. Its antenna pattern extends either side of the runway centerline by 10 to 15 degrees and provides altitude measurement to 10,000 ft. Both radar parts provide a real time bird detection, tracking and alerting of hazardous bird activity at commercial airports and military airfields.

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