Simrad Halo Radar is the world’s first high performance, solid-state radar with pulse compression technology designed specifically for light commercial and recreational marine use.Unlike traditional pulse radar, Halo Radar isn’t reliant on a high-powered magnetron (vacuum tube) to transmit. Instead, Halo Radar uses solid-state electronics and low-power 25W pulsed, frequency-swept transmission bursts to deliver pulse radar-like range and resolution, without the associated warm-up time, power consumption, or electromagnetic emissions.
Halo Radar delivers a maximum range comparable to traditional 6kW pulse radar, at up to 48nm with the HALO-3 Radar’s 3-foot open array antenna. It offers unprecedented 10m (30ft) minimum range, peering into that pulse-radar blind spot where once only FMCW (3G/4G) Broadband Radar could operate.
Separating one radar target from another is key. Beam sharpening provides the Halo Radar with exceptional Target Separation Control for discriminating between radar targets, granting the Halo Pulse Compression Radar’s 3-foot open array antenna the same effective target resolution as an 4-foot array without beam sharpening.
With Dual Range, Halo Radar functions like two arrays in one – monitor two distance ranges simultaneously with independent displays, controls, and totally independent MARPA target tracking. Take full advantage of Halo Radar’s combination of short-, mid-, and long-range performance to keep an eye on faraway weather cells, while monitoring channel markers and high speed watercraft up close. Dual Range operation is available with Simrad NSS and NSO multifunction display systems.
The HALO-3 Radar offers excellent target detection for its compact 3-foot open array. For enhanced target detection in line with tough IEC 62388 Annex D specifications, consider our larger HALO-4 Radar or HALO-6 Radar arrays.
Automatically track up to 10 user-selected radar targets, displaying CPA (closest point of approach) and TCPA (time to closest point of approach). Up to 20 different targets can be tracked in Dual Range mode, with 10 targets per screen. MARPA functionality requires a heading sensor and GPS.
Halo Radar employs advanced signal processing for digital azimuth and range sidelobe reduction, enhancing discrimination of small targets such as channel markers from larger adjacent targets such as ships and bridges. In addition, Directional Sea Clutter Rejection dynamically changes gain in the sweep to allow smaller targets to be seen in the leeward. Sector Blanking eliminates unwanted reflections, for less clutter on screen.
Harbour, Offshore, Weather, and Bird modes tune Halo Radar’s advanced signal processing to help ensure the targets you’re interested in can be seen vividly – even in the toughest environmental conditions. Automatic selection of Harbour and Offshore modes configures your Halo Radar to suit your surroundings, while a ‘Custom’ mode enables easy manual tuning to suit any purpose or condition
Halo Pulse Compression Radar provides rapid position updates, with high speed operation up to 48RPM (mode and range dependent). Simrad quality construction and Halo Radar's brushless motor with advanced helical gear train design ensure exceptionally quiet operation, especially at 48RPM.
Collision hazards won’t wait for your radar to start up – why should you? Halo Radar’s solid-state technology is ready instantly from standby, and in just 16-25 seconds from power-on to fully-operational. Avoid the 2-3 minute warm-up time associated with traditional pulse radar, and trust Halo Radar to produce an immediate, accurate radar image when you need it.
Halo Radar is built to last, with its solid-state transceiver meaning no magnetron to replace, and no manual tuning required as the magnetron heats up or ages. Similarly, a solid-state brushless motor driver means no motor brushes to wear out and replace. Be confident that Halo Radar will operate at high speed in winds up to 70 knots, year after year.
|Description||25 W Halo® Pulse Compression Radar System. System consists of radar pedestal, antenna, 20 m (65 ft)Interconnection cable and RI-12 Interface Module.|
|Type of emission||FCC/IC/R&TTE Type Certification. FCC ID: RAYHALO. IC ID: 4697A-HALO. R&TTE: Emissions compliant to SM1541-4 (including -40 dB/dec future design objectives)|
|Operating Temperature||-25°C to +55°C (-13°F - 131°F)|
|Relative humidity||IEC60945 Exposed product|
|Shock and Vibration||IEC60945 Exposed product and 20G, 100,000 cycle|
|UV||IEC60945 Exposed product|
|Relative wind velocity||70 knots for 3’, 4’, and 6’ antenna at 48 rpm with RI-12|
|Power consumption||150 W (peak) at maximum wind velocity, 40 W (average) at zero wind velocity, 6.5 W (average) for Scanner + RI-12 in Standby mode|
|DC input||R-12: (12 OR 24 volt systems) 12 V Systems 10.8 - 15 V DC, 24 V Systems 20 - 31.2 V DC, Pedestal voltage input is 36 V DC nominal generated by RI-12|
|Power up time||16-25 seconds from POWER OFF to TRANSMIT|
|Height||448 mm (17.64”)|
|Antenna swing circle diameter||3 ft model: 1141 mm (3.5 ft), 4 ft model: 1431 mm (4.5 ft), 6 ft model: 2045 mm (6.5 ft)|
|Pedestal||18.75 Kg (41.3lb)|
|Antenna 3 ft||4.1 Kg (9.0 lb|
|Antenna 4 ft||4.9 Kg (10.8 lb)|
|Antenna 6 ft||6.5 Kg (14.3 lb)|
|RI-12||1.6 Kg ( 3.5 lb)|
|10 m (33 ft) Cable||1.1 Kg (2.4 lb)|
|20 m (66 ft) Cable||2.3 Kg (5.0 lb)|
|30 m (100 ft) Cable||3.4 Kg (7.5 lb)|
|Instrumented range||3 ft model:48 nm, 4 ft model:64 nm, 6 ft model:72 nm|
|Transmitter||Solid state module with no long term transmitter power degradation|
|Rotation||Approx. 24 to 48 rpm (Min 20 rpm at Max 70 kts). Software controlled in modes|
|Beam width||3 ft: 2.4°+/-10% (-3 dB width) – 1.7 deg with Beam sharpening mode ON,4 ft: 1.8°+/-10% (-3 dB width) – 1.3 deg with Beam sharpening mode ON,6 ft 1.2°+/-10% (-3 dB|
|Beam width Vertical||25° +/-20 % (-3 dB width)|
|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 –30dB max. (outside ±10°)|
|Side lobe level 6 ft||Below -23 dB max. (within ±10°): Below –30 dB max. (outside ±10°)|
|Transmitter frequency||Synthesized - Upper half of X-Band 9.410 - 9.495 GHz|
|Peak power output||25 W ± 10% under any transmit condition – up to 10% duty cycle max|
|Pulse length/PRF and Compression ratio||Pulse length: 0.04 usec: Chirp length:2-96 usec: Chirp Bandwidth: 2-32 MHz: Up to 1 pulse and 5 chirps in a burst with burst repetition rate of 500-2000. Range and mode dependent. Effective Pulse Compression Ratio less than 150 in all modes.|
|SART/RACON Triggering||Yes – trigger distance: about 1nm max – weather, sea state, and SART position dependent|
|Duplexer||Circulator and isolator|
|IF section||Center frequency: 28.625 MHz: Bandwidth: 40 MHz max.* A/D; 16 bit 115 MSPS *Narrower bandwidths defined by signal processing|
|Noise figure||5 dB (Average) at front-end input.|
|Communications Ports||Ethernet 10/100 Base-T for radar data and control, Micro-C male / NMEA2000 via RI-12|
|NMEA2000 PGNS USED||127250 - Vessel Heading, 127251 - Rate of Turn, 129025 - Position, Rapid Update, 129026 - COG & SOG, Rapid Update, 129029 - GNSS Position Data, 130818 -Proprietary|
|NMEA-0183||Input via RI-12: Sentenses used by the radar application. HDG, HDT, HDM, GGA, GLL, RMC, VTG.:Baud rate: Auto sense 4800, 9600, 19200 or 38400|
|Remote power on||yes|
|Motor||Brushless with solid state commutation with electromagnetic braking for parking.|
|Inter-connecting cable||Uses the same cable as the 3G/4G radars. Available in: 10 m (33 ft), 20 m (66 ft), 30 m (100 ft) lengths. Ships with (20 m (66 ft) Max length 30 m (100 ft). Options for cable to exit from rear of pedestal or pole mount|
PEDESTAL, RADAR, HALO
PEDESTAL, RADAR, HALO
RI-12 IF BOX, RADAR, HALO,
RI-12 Radar interface module for Halo Radar
ANTENNA, RADAR, HALO, 3FT
ANTENNA, RADAR, HALO, 3FT
Scanner cable 20 m (66 ft)
3G/4G Scanner connection cable - 20 m (66 ft)
HALO Pedestal, Spare mounting kit
HALO Pedestal, Spare mounting kit. Includes -4 x Bolt, HEX, M12x35, 316 s/s: 4 x Bolt, HEX, M12x50, 316 s/s: -4 x Washer, Flat, M12x36x3, 316 s/s: -4 x Washer, Spring, M12, 316 s/s: -8 x Washer, Isolating M12x38 Nylon