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Antenna
Rotation speed 16 to 48 rpm depending on operating mode.
Beam width
Beam width
vertical
Plane of
polarization
Horizontal polarization
Sidelobe level 3 ft Below -23 dB max. (within ±10°)
Below -30 dB max. (outside ±10°)
Side lobe level 4 ft Below -23 dB max. (within ±10°)
Below -30 dB max. (outside ±10°)
Side lobe level 6 ft Below -23 dB max. (within ±10°)
Below -30 dB max. (outside ±10°)
Radar
HALO
2000 SERIES 50 W ± 10% under any transmit condition – up to
10% duty cycle max
HALO
3000 SERIES 130 W ± 10% under any transmit condition – up to
13% duty cycle max
Transmitter Solid state module with no long-term transmitter power degradation
Transmitter
frequency
Synthesized - Upper half of X-Band 9.390 - 9.495 GHz
and compression
ratio
Pulse length: 0.04 usec
Chirp length: 2-64 usec
Chirp bandwidth: 2-48 MHz
Up to 1 pulse and 4 chirps in a burst with burst repetition rate of 500-
3000Hz. Range and mode dependent.
Instrumented
range
HALO
2000 SERIES (all antenna sizes) 72 nm
HALO
3000 SERIES (all antenna sizes) 96 nm
triggering
Yes – trigger distance: about 1nm max – weather, sea state, and SART
position dependent
Duplexer Circulator and isolator
LNA GaAs front-end
IF section Center frequency: 31.25 MHz
5 dB (Min) at antenna input
Compass safe
distance
Pedestal Standard compass: 1.0 m (3.3 ft)
Steering compass: 0.5 m (1.6 ft)
RI-50 Standard compass: 0.1 m (0.33 ft)
Steering compass: 0.1 m (0.33 ft)