Simrad HALO™-3 Pulse Compression Radar w/3' Antenna, RI-12 Interface Module & 20M Cable

Discover Superior Situational Awareness on the Water

Imagine navigating through fog-shrouded waters or monitoring distant squalls while keeping a sharp eye on nearby buoys and vessels—all without the hassle of long warm-ups or excessive power draw. The Simrad HALO-3 pulse compression radar transforms how recreational boaters approach safety and performance. By blending the long-range punch of traditional pulse systems with the razor-sharp clarity of broadband tech, it delivers reliable detection from intimate 10-meter close-ups to impressive 48-nautical-mile horizons. Solid-state design ensures it's always ready when you are, cutting startup times dramatically and slashing maintenance worries.

Crafted for smaller powerboats and yachts, this radar stands out with its eco-friendly low emissions, making it suitable even in crowded marinas. Mariners praise its intuitive modes that adapt to real-world conditions, from bustling harbors to open ocean passages, providing clutter-free images that boost confidence during night runs or heavy weather.

Standout Performance That Sets It Apart

• Exceptional Range Flexibility: Spot targets from 30 feet away up to 48 nautical miles, bridging gaps where older radars falter.
• Beam Sharpening Magic: Enhances resolution to rival larger arrays, crisply separating birds, markers, or boats in tight clusters.
• Dual-Range Power: Operate like two radars in one on compatible multifunction displays, tracking far-off threats and close-quarters action independently.
• Smart Signal Processing: Modes for harbor clutter, offshore swells, weather cells, bird flocks, and custom tweaks automatically optimize for your environment.
• Lightning-Fast Spin: Up to 48 RPM for real-time updates, with whisper-quiet brushless operation even in gusty winds.
• Instant Readiness: Powers up fully in under 25 seconds; standby reactivation is immediate—no more anxious waits.
• Advanced Tracking: MARPA locks onto up to 20 targets in dual-range, calculating collision risks with heading and GPS inputs.
• Efficient and Safe: Sips power at 40W average, runs on 12/24V, and emits minimal radiation for anchorages.
• Seamless Integration: Ethernet links effortlessly to Simrad and compatible displays; includes RI-12 module and 20m cable.
• Stylish Finish: Sleek pedestal with adjustable blue LED lighting for a premium on-deck presence (check local regs).

Pulse Compression: The Game-Changer for Boaters

At its core, pulse compression sends clever frequency-swept bursts at just 25W, mimicking high-power radars without the bulky magnetron. This means no tuning drift, no replacements, and instant reliability. Directional clutter rejection pulls small targets from sea noise, while sector blanking hides fixed obstacles like docks. In practice, boaters report spotting pot buoys amid waves or flocks indicating bait balls—details that elevate fishing trips and coastal cruises.

Real-World Range and Resolution

The 3-foot array punches above its size, offering a 10m minimum range that peers into blind spots. High-speed modes deliver fluid sweeps, ideal for dynamic scenarios like maneuvering in traffic or chasing game fish. Winds up to 70 knots? It keeps spinning smoothly thanks to helical gears and solid-state drive.

Versatile Modes for Every Voyage

Switch effortlessly: Harbor mode cuts city clutter, Offshore handles chop, Weather pierces rain, Bird reveals schools indirectly. Auto-detection between harbor/offshore saves fiddling, and Custom lets pros dial in perfection.

Effortless Setup and Everyday Reliability

Everything arrives ready: pedestal, 3' antenna, RI-12 interface, and 20m cable. Mount the slim array topside, tuck the interface below deck, and Ethernet-connect to your display. Low 7W standby draw preserves batteries on long anchors. Built tough—no brushes to wear, no tubes to burn out—it thrives in harsh marine environments, from salty air to pounding wakes.

Low emissions align with evolving regs, letting you scan safely near swimmers or tenders. Power efficiency shines on mid-sized vessels, freeing juice for lights, fishfinders, or autopilots.

Detailed Specifications at a Glance

Category	Specification
Antenna Specs
Size	44.37 inches
Range	48 nm
Rotation Speed	24-48 RPM (min 20 RPM at 70 knots)
Horizontal Beam Width	2.4° (±10%) sharpened to 1.7°
Vertical Beam Width	25° (±20%)
Transmitter Frequency	9.410-9.495 GHz (X-Band)
Peak Output	25W (±10%)
Power & Environmental
Input Voltage	10.8-31.2 VDC (12/24V)
Power Draw	40W avg (no wind), 150W peak, 6.5W standby
Operating Temp	-13°F to 131°F
Connectivity	Ethernet, NMEA 2000/0183 via RI-12

Complete Kit for Quick Deployment

• Pedestal assembly
• RI-12 interface module
• 3-foot open array antenna
• 20-meter scanner cable

HALO™-3 Pulse Compression Radar with 3' Antenna, RI-12 Interface Module & 20M Cable

Combining the best characteristics of traditional pulse and FMCW broadband radar systems, Simrad's 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' open array antenna
  
• Beam Sharpening with Target Separation Control
  
• Dual Range operation with NSS/NSO multifunction displays
  
• Advanced signal processing with Harbour, Offshore, Weather, Bird, and Custom modes. Other modes available soon.
  
• 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 in pedestal with brightness control

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' open array antenna. It offers unprecedented 10M (30') 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' open array antenna the same effective target resolution as a 4' 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. Dual Range operation is available with Simrad NSS and NSO multifunction display systems.

Target Detection
The HALO-3 Radar offers excellent target detection for its compact 3' 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.

ARPA Target Tracking
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.

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. Sector Blanking eliminates unwanted reflections, for less clutter on screen.

8 Usage Modes with Automatic Harbour/Offshore Selection
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.
Low Power Consumption Halo Radar uses 40W average with no wind, and no more than 200W at maximum wind velocity. Experience even greater power savings in standby with just 7W 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 or NSO 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.


***MARPA functionality will not be available on Halo Radar at initial release, but will be enabled via software update in Q3 2015.****

Simrad HALO 3 Radar with 3' Array

Model: 000-11469-001
UPC: 9420024128800

• True 48nm range with 3-foot open array antenna
• Beam Sharpening with Target Separation Control
• Dual Range operation with NSS/NSO multifunction displays
• Advanced signal processing with Harbour, Offshore, Weather, Bird, and Custom modes. Other modes available soon.
• 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 in pedestal with brightness control

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 10m (30ft) 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. Dual Range operation is available with Simrad NSS and NSO multifunction display systems.

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.

MARPA Target Tracking
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.

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. Sector Blanking eliminates unwanted reflections, for less clutter on screen.

8 Usage Modes with Automatic Harbour/Offshore Selection
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.

Low Power Consumption Halo Radar uses 40W average with no wind, and no more than 200W at maximum wind velocity. Experience even greater power savings in standby with just 7W 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 or NSO 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.

* 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.

Specifications

Antenna
Size	44.37"
Range	48nm
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
Beam width verticle	25° +/-20 % (-3 dB width)
Plane of polarization	Horizontal Polarization
Side Lobe	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.
Duplexer	Circulator and isolator
SART/RACON Triggering	Yes — trigger distance: about 1nm max — weather, sea state, and SART position dependent
Mixer	MIC front-end
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.
Other
Communication ports	Ethernet 10/100 Base-T for radar data and control, Micro-C male / NMEA2000 via RI-12
NMEA 2000 PGNS used	127250 - Vessel Heading, 127251 - Rate of Turn, 129025 - Position, Rapid Update, 129026 - COG & SOG, Rapid Update, 129029 - GNSS Position Data, 130818 -Proprietary
NMEA0183	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
Antenna Park	Yes
Remote power on	Yes
Motor	Brushless with solid state commutation with electromagnetic braking for parking.
Operating temperature	25°C to +55°C (-13°F - 131°F)
Input Voltage	R-12: 10.8 V DC to 31.2 V DC (12/24 volt systems), Pedestal voltage input is 36 V DC nominal generated by RI-12
Input Draw	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

What's in the Box:

• Pedastal
• RI-12 IF box
• 3' Antenna
• 20m scanner cable

Simrad's Halo-3 reduces clutter and enhances target separation. Simrad's Halo-3 pulse compression radar combines the best features of traditional pulse and wideband radars. Halo-3 is a 3-inch open-array 48-nautical-mile radar that can only be used with its NSS evo2 and NSO evo2 multifunction displays. Halo-3 can be set to operate in dual-range mode, making it merge into one like two radars without losing any signal, allowing you to monitor both ranges while independently controlling the two. Halo 3 also has "custom", "port", "offshore", "weather" and "bird" modes, which can adjust Halo's signal processing to ensure that the target can be clearly seen even in the harshest environment. Dual Range also means that dual MARPA targets of up to 20 targets can be tracked. Halo3 also eliminates the traditional 2-3 minute warm-up process in traditional radars, and you can now get a clear radar image within 16-25 seconds after powering up. Halo-3's beam sharpening and target separation technology provides you with unparalleled target resolution images in a set of targets. Unlike conventional pulse radars, Halo-3â€s low-power pulse emission complies with the upcoming “low emission” standards, so it can be safely driven on anchor points and piers, and provides more information at the beginning and end of each journey. Large radar coverage. In fact, the minimum safety distance of Halo-3 is within the rotation circle of the array. In its high-speed operation, Halo-3 can quickly update the position, and its brushless motor with advanced helical gear transmission design can ensure exceptionally quiet operation even at high-speed operation. Looking for a safe and quiet open array to add to your NSS evo2, NSS evo3 or NSO evo2 system, then the Halo-3 36-inch pulse compression radar is worth a look.

HALO™-3 pulse compression radar with 3'antenna, RI-12 interface module and 20M cable Simrad’s Halo™ radar combines the best characteristics of traditional pulse and FMCW wideband radar systems, using pulse compression...
SKU: NVN-57154
MPN: 000-11469-001
UPC: 9420024128800