Simrad HALO™-4 Pulse Compression Radar w/4' Antenna, RI-12 Interface Module & 20M Cable
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Simrad HALO™-4 Pulse Compression Radar w/4' Antenna, RI-12 Interface Module & 20M Cable Product Description
Imagine navigating through foggy inlets or tracking distant squalls while keeping a sharp eye on nearby buoys and speeding vessels—all from one sleek radar system. The Simrad HALO-4 Pulse Compression Radar transforms how recreational boaters approach safety and exploration on the water. By blending the long-range punch of traditional radars with the razor-sharp close-range clarity of broadband systems, it delivers versatile performance tailored for real-world boating challenges.
Unlock Superior Detection in Every Scenario
This radar stands out with its ability to spot targets from as close as 10 meters out to an impressive 64 nautical miles, thanks to innovative pulse compression technology. Solid-state design eliminates the bulky magnetron, slashing warm-up times to mere seconds—ready to go from power-on in 16-25 seconds or instantly from standby. Boaters rave about how this quick response has saved crucial moments during unexpected maneuvers.
Advanced signal processing cuts through clutter like sea spray or rain, with specialized modes for harbor maneuvering, open-ocean cruising, weather monitoring, and even bird spotting for prime fishing grounds. The beam sharpening feature refines target separation, making it easier to distinguish a lone channel marker from a cluster of boats or birds.
Dual-Range Power for Multitasking Mariners
Picture this: One screen watches for approaching storms 30 miles away, while the other tracks fast-moving craft in the channel ahead. Dual-range operation lets you split the display for independent control and tracking on compatible multifunction displays. Track up to 20 MARPA targets total (10 per range), complete with CPA and TCPA data, ensuring you're always one step ahead of potential hazards.
Engineered for Endurance and Efficiency
Built to thrive in harsh marine environments, the 4-foot open array spins at up to 48 RPM for rapid updates, even in 70-knot winds. Brushless motors and helical gears keep noise low, while low power draw (as little as 40W average, 7W in standby) suits battery-conscious setups on mid-sized powerboats. Plus, minimal electromagnetic emissions mean you can run it confidently in crowded marinas without worry.
Ethernet integration simplifies networking with your existing chartplotters, and the included RI-12 interface module with 20m cable streamlines below-deck installation. The pedestal's curved design and customizable blue LED lighting add a touch of style that turns heads at the dock.
Real-World Boating Advantages
Serious anglers use the bird mode to locate bait balls miles offshore, while cruisers appreciate the weather mode's rain cell detection for route planning. In tight harbors, directional sea clutter rejection and sector blanking paint a cleaner picture, reducing false echoes from fixed structures. High-speed operation ensures smooth, flicker-free images during dynamic conditions, giving you confidence whether trolling or trailering.
Maintenance is a breeze—no magnetron replacements or brush wear. Just occasional cleaning keeps it performing like new season after season.
Technical Specifications at a Glance
| Specification | Details |
|---|---|
| Antenna Size | 4 feet (56.34 inches) |
| Maximum Range | 64 nm |
| Rotation Speed | 24-48 RPM (software controlled) |
| Horizontal Beam Width | 1.8° (±10%) or 1.3° with sharpening |
| Vertical Beam Width | 25° (±20%) |
| Transmitter Power | 25W peak |
| Power Consumption | 40W average (no wind), 7W standby |
| Operating Temperature | -25°C to +55°C |
| Connectivity | Ethernet, NMEA 2000/0183 |
Package Contents
- Pedestal assembly
- RI-12 interface module
- 4-foot antenna array
- 20-meter scanner cable
Frequently Asked Questions
How quickly does the HALO-4 radar power up?
It activates in 16-25 seconds from a cold start or instantly from standby, far faster than traditional radars that need minutes to warm up.
What makes pulse compression better for boating?
Pulse compression provides excellent short- and long-range detection with low power, reducing clutter and improving target clarity in varied conditions.
Can this radar track multiple targets?
Yes, MARPA tracks up to 10 targets standard, or 20 in dual-range mode, displaying approach data for enhanced situational awareness.
Is it suitable for use in marinas?
Absolutely—its low emissions comply with standards, making it safe for crowded anchorages without interfering with others.
How does it handle rough weather?
Weather and offshore modes, plus directional clutter rejection, ensure clear views through rain and waves, with reliable operation in high winds.
What displays work with dual-range?
Dual-range pairs seamlessly with compatible multifunction displays supporting independent range monitoring and controls.
Does it require much power from my boat's system?
No, efficient 12/24V operation uses minimal power, ideal for extended trips without draining batteries quickly.
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 64nm range with 4' 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.
64nm Range
Halo Radar delivers a maximum range comparable to traditional 6kW pulse radar, at up to 64nm with the HALO-4 Radar's 4' 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 4' 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 4 Radar with 4' Array
Model: 000-11470-001UPC: 9420024128817
- True 64nm range with 4-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.
64nm Range
Halo Radar delivers a maximum range comparable to traditional 6kW pulse radar, at up to 64nm with the HALO-4 Radar’s 4-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 | 56.34" |
| Range | 64nm |
| Rotation | Approx. 24 to 48 rpm (Min 20 rpm at Max 70 kts). Software controlled in modes |
| Beam width | 4 ft: 1.8°+/-10% (-3 dB width) — 1.3 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
- 4' Antenna
- 20m scanner cable
Cellular·Indoor·Marine·Vehicle·Digital·Directional The revolutionary Simrad Halo radar is easier than ever to safely navigate, monitor the weather and look for flocks of birds, which are the best waters for fishing. Solid state pulse compression technology allows you to see both close and far from a single Halo radar array on a single screen.
HALO™-4 pulse compression radar with 4'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-57155
MPN: 000-11470-001
UPC: 9420024128817
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Frequently Asked Questions (FAQ) About Simrad HALO™-4 Pulse Compression Radar w/4' Antenna, RI-12 Interface Module & 20M Cable
Who is the Simrad?How to describe Simrad HALO™-4 Pulse Compression Radar w/4' Antenna, RI-12 Interface Module & 20M Cable?
What is the output voltage?
What is the array size of the product?
What is the maximum range (miles) of the product?
Who is the Simrad?
How to describe Simrad HALO™-4 Pulse Compression Radar w/4' Antenna, RI-12 Interface Module & 20M Cable?
- Pulse compression technology for high detection range
- RI-12 interface module to get the most out of your radar system
- 20M cable to cover long distances
- Pulse compression radar for fast and accurate measurements
- 4' antenna for easy installation
- RI-12 interface module for easy connection to your Simrad system
- Pulse compression radar is the latest in technology, providing a reliable and accurate detection of targets.
- The Halo&153;-4 is an easy to install, complete radar system that includes everything you need for installation.
- With its long range and high accuracy, this system is ideal for commercial use.
What is the output voltage?
- Pulse compression technology for high detection range
- RI-12 interface module to get the most out of your radar system
- 20M cable to cover long distances
- Pulse compression radar for fast and accurate measurements
- 4' antenna for easy installation
- RI-12 interface module for easy connection to your Simrad system
- Pulse compression radar is the latest in technology, providing a reliable and accurate detection of targets.
- The Halo&153;-4 is an easy to install, complete radar system that includes everything you need for installation.
- With its long range and high accuracy, this system is ideal for commercial use.
What is the array size of the product?
What is the maximum range (miles) of the product?
Buy with the best price Simrad HALO™-4 Pulse Compression Radar w/4' Antenna, RI-12 Interface Module & 20M Cable for only $6599 from NVN Marine! Same day fast and free shipping before 3pm.
Simrad HALO™-4 Pulse Compression Radar w/4' Antenna, RI-12 Interface Module & 20M Cable Technical Specifications
| Type: | |
|---|---|
| Vendor: |
Simrad |
| Weight: |
72.1 lb |
| Range - Max (Miles): |
64nm |
| Power - Output: |
6kW |
| Array Size (Inches): |
48" |
Simrad HALO™-4 Pulse Compression Radar w/4' Antenna, RI-12 Interface Module & 20M Cable User Reviews
Simrad HALO™-4 Pulse Compression Radar w/4' Antenna, RI-12 Interface Module & 20M Cable Shipping & Return
| Shipping Weight: |
72.1 lb |
|---|---|
| Box Sizes: |
5.00 (h) x 9.00 (w) x 10.00 (l) |
| Cubic Feet: |
450.0 |
| Returnable: |
Yes |
For detailed shipping policy please check our Shipping Policy and you can find our Return and Refund Policy here.