Combining the best characteristics of traditional pulse and FMCW broadband radar systems, our Halo™ Radar uses Pulse Compression technology to provide an unprecedented mix of long and short detection range, high target definition, and minimal clutter. Solid State technology means minimal warm-up time and maximum ocean-going reliability, while compliance with upcoming Low Emission standards makes Halo Radar safe to run in anchorages and marinas.
Key Features
True 48nm range with 3-foot open array antenna
Beam Sharpening with Target Separation Control
Compatible exclusively with Simrad NSS evo2 and NSO evo2 multifunction displays
Dual Range operation
Advanced signal processing with Custom, Harbour, Offshore, Weather, and BIRD modes
High-speed 48RPM operation
InstantOn™, ready in 16-25 seconds from power-on, instant from standby
MARPA target tracking, up to 10 targets (20 with dual range)
Low electromagnetic emissions and radiation
Low power consumption with 12/24V operation
Ethernet connectivity
Unique blue LED accent lighting with brightness control
HaloTM sees all the way across the bay
From Pax River, HaloTM sees all the way across the Cheasapeake Bay(1) and detects storms over Cambridge, Maryland(2)
300ft and up to 72nm - same time & screen
HaloTM lets you see near and far in Dual Range mode, with competely independent split-screen displays.
Note a remarkably small 20ft main bang area(1)
Track multiple high-speed targets
With high-speed operation, Halo shows target trails of four fast-moving jet skis in Clearwater, Florida harbour
Monitor far-away weather cells
HaloTM sees weather cells 65NM away (3), giving you a real-time view of rough weather long before you encounter it.
Superior target separation
HaloTM shows clear separation of even the smallest targets, as seen in this sailing dingy race.
Birdfinder radar
Birds mean fish, and Halo's dedicated BIRD mode means it's easy to find flocks of birds from a distance. Birds are visible at 3.5nm here, with no high-gain screen clutter thanks to Halo Radar's advanced DSP.
Solid-State with Pulse Compression Technology
Simrad Halo Radar is the world’s first high performance, solid-state radar with pulse compression technology designed specifically for recreational mariners. 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.
48nm Range
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 6m (20ft) minimum range, peering into that pulse-radar blind spot where once only FMCW (3G/4G) Broadband Radar could operate.
Beam Sharpening
Whether you’re looking at a flock of birds or a string of channel markers, separating one radar target from another is key. Beam Sharpening with Target Separation Control provides unmatched target resolution, granting the Halo Pulse Compression Radar’s 3-foot open array antenna the same effective target resolution as a 4-foot array without beam sharpening.
Dual Range Operation
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.
Target Detection
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.
View comparison table
MARPA Target Tracking
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.
Advanced Signal Processing
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. Coming soon via free NSS/NSO evo2 software update, Sector Blanking reduces on-screen clutter by eliminating unwanted reflections in up to four user-defined zones.
5 Usage Modes with Automatic Harbour/Offshore Selection
Custom, 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.
High Speed Mode
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 geartrain design ensure exceptionally quiet operation, especially at 48RPM.
InstantOn™
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.
High Reliability
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.
Low Electromagnetic Emissions
Unlike traditional pulse radar, Halo Radar’s low-power pulsed transmissions meet upcoming Low Emission standards. This makes Halo Radar safe to run in anchorages and marinas, providing enhanced radar coverage at the very start and end of each journey. In fact, Halo Radar’s minimum safe distance in any transmission mode is within the swing circle of its open array antenna.
Low Power Consumption
Halo Radar uses 40W average with no wind, and no more than 150W at maximum wind velocity. Experience even greater power savings in standby with just 6.5W power usage, versus 10-15W for pulse radar. With its low power consumption and support for 12/24 volt DC systems, Halo Radar is ideal for small to mid-sized powerboats.
Ethernet Connectivity
Simrad Halo Pulse Compression Radar connects to any Simrad NSS evo2 or NSO evo2 multifunction display system via Ethernet, with a bulkhead-mounted interface box below deck. Antenna installation is simple and elegant, with the same thin cable and small-diameter connectors as our 3G/4G Broadband radars.
Uncompromising Aesthetics
Bringing the range and reliability of Halo Pulse Compression Radar to your boat doesn’t mean compromising on aesthetics. Halo Radar’s sleek open-array antenna sits atop a uniquely curved pedestal, a departure from traditional boxy and utilitarian radar designs. Display your Halo Radar on the water with soft-glow, dual-beam Blue LED accent lighting, integrated into the pedestal and customizable with 4-level brightness control.
* Halo™ Pulse Compression Radar’s blue 4 level static accent pedestal lighting may not be approved for use in your boating location. Please check your local boating regulations before turning the blue accent lights ON.
Technical/Environmental
Humidity +40°C, 93% RH
Operating Temperature -25° to +55°C
Water Resistance IPX6
Product Width 1,068mm / 3.5'
Product Height 448mm /17.6"
Product Weight Unpacked System: 26.8kg/59lb±10%
Pedestal:18.75kg/41.5lb±10%
Antenna 3’: 4.1kg/9.0lb±10%
RI-12: 1.6kg/3.5lb±10%
20m (33ft) Cable: 2.3kg/5.0lb±10%
Specified Standards FCC ID: RAYHALO
IC: 4697A-HALO
Emissions compliant to SM1541-4 (including -40dB/dec future design objectives)
Waterproof Standard/rating IEC60945-4
Power
Power Consumption 150W (peak in 70kt winds), 40W (average with zero wind velocity), 6.5W (standby)
Power Supply (Supply Voltage) 10.8V – 31.2V DC (12/24 Volt DC systems)
Other
Pulse Length / PRF Pulse length: 0.04µsec; Chirp length: 2-96µsec; Chirp Bandwidth: 2-32MHz; Up to 1 pulse and 5 chirps in a burst with burst repetition rate of 500-2000Hz. Range and mode dependent. Effective Pulse Compression Ratio less than 150 in all modes.
Other Features Automatic Harbour, Offshore, Weather and BIRD modes, Custom manual mode, MARPA, Dual Range, InstantON, Low power draw, Low electromagnetic emission
Radar
Antenna Horizontal Beam Width [deg] 2.4° ±10% (-3dB width), 2.1/1.9/1.6° with Beam Sharpening mode enabled (Low/Med/High)
Antenna Receiver Noise Figure [dB] 5
Antenna Rotation Speed Approx. 24-48RPM (min 20RPM at 70 knots)
Antenna Type Circulator and Isolator; Radar Mixer: MIC front-end
Antenna Vertical Beam Width 25° +20% (-3dB width)
RadarVibration 2-100Hz and 20G, 100,000 cycles
Synthesized - X-Band 9.410–9.495GHz
Communications
Ethernet 10/100 BaseT, NMEA2000/NMEA0183
Overview
Cable Length 20m (65ft). Optional 10m (33ft) cable
Radar Technology
Solid-state X-Band transceiver with Pulse Compression technology
Radar Max Range
100m / 300ft to 48nm
Radar Features
Peak Power Output: 25W ±10% under any transmit condition (up to 10% duty cycle max)
Radiation Safe Distance: 100W/m2 (Occupational) at 0m - touch anywhere; 10W m2 (Public) measured at .28m/.92ft. FCC CFR47 Part 2.1091 calculated public safe distance is 0.80m/2.6ft. (less than the swing circle of the antenna with either method).
True 48nm range with 3-foot open array antenna
Beam Sharpening with Target Separation Control
Compatible exclusively with Simrad NSS evo2 and NSO evo2 multifunction displays
Dual Range operation
Advanced signal processing with Custom, Harbour, Offshore, Weather, and BIRD modes
High-speed 48RPM operation
InstantOn™, ready in 16-25 seconds from power-on, instant from standby
MARPA target tracking, up to 10 targets (20 with dual range)
Low electromagnetic emissions and radiation
Low power consumption with 12/24V operation
Ethernet connectivity
Unique blue LED accent lighting with brightness control
HaloTM sees all the way across the bay
From Pax River, HaloTM sees all the way across the Cheasapeake Bay(1) and detects storms over Cambridge, Maryland(2)
300ft and up to 72nm - same time & screen
HaloTM lets you see near and far in Dual Range mode, with competely independent split-screen displays.
Note a remarkably small 20ft main bang area(1)
Track multiple high-speed targets
With high-speed operation, Halo shows target trails of four fast-moving jet skis in Clearwater, Florida harbour
Monitor far-away weather cells
HaloTM sees weather cells 65NM away (3), giving you a real-time view of rough weather long before you encounter it.
Superior target separation
HaloTM shows clear separation of even the smallest targets, as seen in this sailing dingy race.
Birdfinder radar
Birds mean fish, and Halo's dedicated BIRD mode means it's easy to find flocks of birds from a distance. Birds are visible at 3.5nm here, with no high-gain screen clutter thanks to Halo Radar's advanced DSP.
Solid-State with Pulse Compression Technology
Simrad Halo Radar is the world’s first high performance, solid-state radar with pulse compression technology designed specifically for recreational mariners. 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.
48nm Range
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 6m (20ft) minimum range, peering into that pulse-radar blind spot where once only FMCW (3G/4G) Broadband Radar could operate.
Beam Sharpening
Whether you’re looking at a flock of birds or a string of channel markers, separating one radar target from another is key. Beam Sharpening with Target Separation Control provides unmatched target resolution, granting the Halo Pulse Compression Radar’s 3-foot open array antenna the same effective target resolution as a 4-foot array without beam sharpening.
Dual Range Operation
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.
Target Detection
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.
View comparison table
MARPA Target Tracking
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.
Advanced Signal Processing
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. Coming soon via free NSS/NSO evo2 software update, Sector Blanking reduces on-screen clutter by eliminating unwanted reflections in up to four user-defined zones.
5 Usage Modes with Automatic Harbour/Offshore Selection
Custom, 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.
High Speed Mode
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 geartrain design ensure exceptionally quiet operation, especially at 48RPM.
InstantOn™
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.
High Reliability
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.
Low Electromagnetic Emissions
Unlike traditional pulse radar, Halo Radar’s low-power pulsed transmissions meet upcoming Low Emission standards. This makes Halo Radar safe to run in anchorages and marinas, providing enhanced radar coverage at the very start and end of each journey. In fact, Halo Radar’s minimum safe distance in any transmission mode is within the swing circle of its open array antenna.
Low Power Consumption
Halo Radar uses 40W average with no wind, and no more than 150W at maximum wind velocity. Experience even greater power savings in standby with just 6.5W power usage, versus 10-15W for pulse radar. With its low power consumption and support for 12/24 volt DC systems, Halo Radar is ideal for small to mid-sized powerboats.
Ethernet Connectivity
Simrad Halo Pulse Compression Radar connects to any Simrad NSS evo2 or NSO evo2 multifunction display system via Ethernet, with a bulkhead-mounted interface box below deck. Antenna installation is simple and elegant, with the same thin cable and small-diameter connectors as our 3G/4G Broadband radars.
Uncompromising Aesthetics
Bringing the range and reliability of Halo Pulse Compression Radar to your boat doesn’t mean compromising on aesthetics. Halo Radar’s sleek open-array antenna sits atop a uniquely curved pedestal, a departure from traditional boxy and utilitarian radar designs. Display your Halo Radar on the water with soft-glow, dual-beam Blue LED accent lighting, integrated into the pedestal and customizable with 4-level brightness control.
* Halo™ Pulse Compression Radar’s blue 4 level static accent pedestal lighting may not be approved for use in your boating location. Please check your local boating regulations before turning the blue accent lights ON.
Technical/Environmental
Humidity +40°C, 93% RH
Operating Temperature -25° to +55°C
Water Resistance IPX6
Product Width 1,068mm / 3.5'
Product Height 448mm /17.6"
Product Weight Unpacked System: 26.8kg/59lb±10%
Pedestal:18.75kg/41.5lb±10%
Antenna 3’: 4.1kg/9.0lb±10%
RI-12: 1.6kg/3.5lb±10%
20m (33ft) Cable: 2.3kg/5.0lb±10%
Specified Standards FCC ID: RAYHALO
IC: 4697A-HALO
Emissions compliant to SM1541-4 (including -40dB/dec future design objectives)
Waterproof Standard/rating IEC60945-4
Power
Power Consumption 150W (peak in 70kt winds), 40W (average with zero wind velocity), 6.5W (standby)
Power Supply (Supply Voltage) 10.8V – 31.2V DC (12/24 Volt DC systems)
Other
Pulse Length / PRF Pulse length: 0.04µsec; Chirp length: 2-96µsec; Chirp Bandwidth: 2-32MHz; Up to 1 pulse and 5 chirps in a burst with burst repetition rate of 500-2000Hz. Range and mode dependent. Effective Pulse Compression Ratio less than 150 in all modes.
Other Features Automatic Harbour, Offshore, Weather and BIRD modes, Custom manual mode, MARPA, Dual Range, InstantON, Low power draw, Low electromagnetic emission
Radar
Antenna Horizontal Beam Width [deg] 2.4° ±10% (-3dB width), 2.1/1.9/1.6° with Beam Sharpening mode enabled (Low/Med/High)
Antenna Receiver Noise Figure [dB] 5
Antenna Rotation Speed Approx. 24-48RPM (min 20RPM at 70 knots)
Antenna Type Circulator and Isolator; Radar Mixer: MIC front-end
Antenna Vertical Beam Width 25° +20% (-3dB width)
RadarVibration 2-100Hz and 20G, 100,000 cycles
Synthesized - X-Band 9.410–9.495GHz
Communications
Ethernet 10/100 BaseT, NMEA2000/NMEA0183
Overview
Cable Length 20m (65ft). Optional 10m (33ft) cable
Radar Technology
Solid-state X-Band transceiver with Pulse Compression technology
Radar Max Range
100m / 300ft to 48nm
Radar Features
Peak Power Output: 25W ±10% under any transmit condition (up to 10% duty cycle max)
Radiation Safe Distance: 100W/m2 (Occupational) at 0m - touch anywhere; 10W m2 (Public) measured at .28m/.92ft. FCC CFR47 Part 2.1091 calculated public safe distance is 0.80m/2.6ft. (less than the swing circle of the antenna with either method).
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