Simrad HALO 20+ Pulse Compression Dome Radar for Small Boats 360-Degree Real-Time View and 60 RPM Doppler Tracking
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Estimated delivery time: 2-7 days
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The Simrad HALO 20+ Pulse Compression Dome Radar brings next‑level situational awareness to your helm with an almost real‑time view and industry‑leading speed. Housed in a compact 20‑inch dome, HALO 20+ delivers a complete 360° picture at up to 60 RPM nearshore and offshore, giving you rapid, reliable awareness of nearby traffic, buoys, and potential hazards.
Why HALO 20+ changes the game
VelocityTrack Doppler technology instantly highlights moving targets, helping you differentiate between stationary obstacles and heading vessels. The radar’s pulse compression design preserves target detail at close range while maintaining robust long‑range detection, so you can identify hazards in cluttered channels and busy harbors without sacrificing resolution.
- 60 RPM high‑speed rotation for almost real‑time updates at short range, with a 36 nautical miles long‑range capability from a single, low‑profile dome.
- Dual range, no compromise—seamlessly monitor near objects and distant targets in one sweep.
- Instant On solid‑state transmitter (no magnetron) for quick startup and reliable performance in challenging conditions.
- Low power, high efficiency operating 17–29W (typical) at 13.8V with standby around 3.9W, ideal for power‑sensitive vessel systems.
Built for real‑world navigation
Whether you’re threading through a crowded marina, navigating in fog, or skimming a busy coastal route, HALO 20+ keeps a clear picture with beam sharpening and selectable target separation controls. Its rugged build withstands demanding marine environments—from icy dawns to hot, humid afternoons—with an operating range that spans 6 m to 36 nm, 18 configurable ranges, and a vertical beam that provides solid target detection even in sea clutter.
Durability and reliability you can trust
Designed for marine use, HALO 20+ meets stringent standards with IPX6 waterproofing, operating temperatures from <-25°C to +55°C>, and high wind tolerance up to 100 knots. The compact, lightweight package (20" dome, about 5.9 kg) simplifies installation on a wide range of vessels, from smaller sport cruisers to heavier center consoles.
What this means in everyday use
- Safer passagem in busy waterways thanks to rapid updates and Doppler colouring that clearly marks approaching vessels and potential collision risks.
- Better decision making with real‑time awareness and dual‑range coverage—you won’t miss short‑range hazards while still tracking distant traffic.
- Efficiency and reliability with a solid‑state transmitter, low power consumption, and fast startup—ready when you are.
Key specifications at a glance
- Radar ranges: 100 m to 36 nm, 18 range settings
- Rotation: 20–60 rpm (mode dependent)
- Transmitter: X‑band, solid‑state, 25W peak
- Power: 17–29W (operating); 3.9W standby; 12/24V systems
- Physical: 510 mm diameter, 223 mm height; < 6 kg
- Waterproofing: IPX6
- Operating temperature: -25° to +55°C; 95% RH
- Beam width: 4.9° horizontal, 25° vertical
For sailors who demand precise, fast, and reliable radar performance without complexity, the Simrad HALO 20+ Pulse Compression Dome Radar is built to deliver. It blends advanced imaging, smart target tracking, and robust construction into a single, compact system that makes every voyage safer and more confident.
| Compliance | CE, FCC (ID:RAYHALO20PLUS), IC: 978B-HALO20PLUS |
| Environmental | IEC60945: 2002, |
| Operating Temperature | -25° to +55°C (-13° to +130°F) |
| Relative humidity | +35° C (95° F), 95% RH |
| Waterproof | IPX6 |
| Max relative wind velocity | 51 m/sec (100 Knots) |
| Operating | 17 to 29W at 13.8 V |
| Standby | 3.9 W (Typ.) at 13.8 V DC ~ 170 mA |
| DC input (at radar end of cable) | 9 V to 31.2 V DC (12/24 V systems) |
| Reverse polarity protection | Yes |
| Minimum startup voltage | 10.75 V DC |
| Transmitter source (pre-heating time) | No magnetron – Instant On |
| Outside dimensions | Ø Diameter 510 mm (20”), Height 223 mm (8.8”) |
| Scanner weight (no cable) | 5.9kg (13 lbs) |
| Radar ranges | 100 m (328 ft) to 36nm with 18 range settings (NM/SM/Km) |
| Rotation (mode dependent) | 20 - 60 rpm (mode and MFD dependent) |
| Transmitter frequency | X-band - 9.4 to 9.5 GHz |
| Transmitter source (warm-up time) | No Magnetron – all solid state. Instant On™ |
| Plane of polarization | Horizontal Polarization |
| Transmitter peak power output | 25W |
| Minimum range | 6 m (19.7 ft) |
| Sweep repetition frequency | 700-2400 Hz (mode dependent) |
| Pulse length | 0.04 - 64 usec |
| Sweep bandwidth | 48 MHz max |
| Horizontal beam width (Tx and Rx antenna) | 4.9° nominal (-3 dB width) |
| Target Separation Control | OFF: 3.9°+/-10% (-3 dB width nominal), LOW: ~3.4°+/-10% (-3 dB width nominal), MED: ~2.5°+/-10% (-3 dB width nominal), HIGH: ~2.0°+/-10% (-3 dB width nominal) |
| Vertical beam width (Tx and Rx antenna) | 25° (-3B width nominal) |
| Side lobe level (Tx and Rx antenna) | Below -18 dB (within ±10°);Below -24 dB (outside ±10°) |
| Noise figure | Less than 5 dB nominal |
| Protocol | Ethernet 100 Base T |
| Maximum inter-connecting cable length | 30 m (98.5 ft) – available as an option, use NEP-2 for longer cable runs |