Simrad HALO24 Compact 24" Dome Radar w/Doppler Technology
Simrad HALO24 Compact 24" Dome Radar w/Doppler Technology — Product description
The Simrad HALO24 (MPN 000-14535-001, UPC 9420024173770) is Simrad's compact 24-inch dome radar with VelocityTrack Doppler technology - delivering 48 nautical mile range from a single compact antenna housing along with industry-first 60 RPM ultra-fast rotation at close range for the highest-resolution collision avoidance display in the recreational marine radar market. Sized for sailboats, fishing boats, and smaller powerboats where a compact 24-inch dome antenna fits the mast or hardtop mounting without the size and cost of larger open-array radars. Pulse compression technology delivers high-quality short, mid, and long-range detection without compromise at any range - resolves small targets at close range while maintaining the long-range reach to 48 nm. Simultaneous Dual Range mode lets you monitor two distance ranges at once - watch far-away weather cells building on a long-range scan while simultaneously tracking close-range collision hazards on a short-range scan. The defining 60 RPM operation at ranges up to 2 nautical miles delivers a complete 360-degree sweep every second - almost real-time view at close range, the ultimate display for collision avoidance in crowded waterways or poor visibility. VelocityTrack Doppler technology automatically checks every target on the screen using the Doppler effect to determine if the target is moving toward your vessel or away - color-codes potential hazards in red (approaching) vs green (moving away) for instant visual identification of collision risk without manual target selection. No limit to the number of Doppler-tracked targets on screen at one time. Beam sharpening provides enhanced separation between small or distant targets that would otherwise blur together on conventional radars. Preset operating modes: harbour (close-range coastal navigation), offshore (open-water long-range), weather (precipitation detection), and bird (highly sensitive mode for finding bait-following bird flocks - useful for offshore fishing). Compatible with Simrad NSS Evo3, Evo3S, NSS 4, NSO, and GO chartplotters via Ethernet - displays radar on the chartplotter with overlay, target tracking, and full radar operation through the chartplotter interface. Also compatible with sister-brand displays (parent-company ecosystem). 2-year limited warranty.
The Simrad HALO24 is the compact 24-inch dome radar with VelocityTrack Doppler technology - Simrad's premium recreational radar that delivers 48 nautical mile range, ultra-fast 60 RPM rotation for collision avoidance, and Doppler-based target tracking in a single compact dome antenna sized for sailboats, fishing boats, and mid-size powerboats. For owners who want serious radar capability without the size, weight, and complexity of larger open-array radars, the HALO24 is the right call.
What 'HALO' means in the Simrad lineup. HALO is Simrad's premium radar platform - the high-performance line above the entry-level 3G / 4G broadband radars but using the same fundamental pulse-compression technology refined to a higher level. The HALO series includes: HALO20 (the entry-level 20-inch dome), HALO20+ (the 20-inch dome with Doppler), HALO24 (this product - 24-inch dome with Doppler), HALO 2000 (the open-array variant for serious offshore use), and HALO 3000 (the largest open-array for commercial use). The HALO24 is the sweet spot for the recreational market - the largest dome antenna size before stepping up to open-array, with the longer range and Doppler capability that distinguishes serious marine radar.
The 48 nautical mile range - what it really means. Maximum radar range depends on target size, atmospheric conditions, and antenna height. The HALO24's 48 nm spec is the maximum detectable range under ideal conditions for large targets - commercial ships, weather cells, large coastlines. In practice for typical recreational use: large vessels at 20-30 nm, small fishing boats at 8-15 nm, weather fronts at 30-48 nm. The long range matters for weather avoidance (seeing storms building 30+ nm away) and for early detection of commercial traffic at offshore distances. For typical coastal cruising, the long-range capability is meaningful for trip planning even if you don't routinely scan at maximum range.
60 RPM ultra-fast rotation at close range. The breakthrough feature of HALO24 (and the HALO20+ / HALO 2000 / 3000 variants) is the industry-first 60 RPM rotation at close range - meaning the antenna spins 60 times per minute, delivering a complete 360-degree radar sweep every single second. Compare to typical radar antennas that rotate at 24 RPM (2.5 seconds per sweep) or 36 RPM (1.7 seconds per sweep). The faster rotation matters for collision avoidance because radar's primary safety function is showing you nearby vessels in real time - the 60 RPM update is closer to 'real time' than the 2.5-second sweep of older radars where targets can move significantly between updates. Specifically, the 60 RPM mode activates automatically at radar ranges up to 2 nautical miles - exactly the range where collision avoidance happens. At longer ranges (where targets move less per sweep), the radar uses normal rotation speeds.
VelocityTrack Doppler - automatic collision avoidance assistance. VelocityTrack is Simrad's Doppler-based target tracking technology that automatically checks every radar target's velocity relative to your vessel. The Doppler effect causes the radar's reflected signal to shift slightly in frequency based on whether the target is moving toward or away from you - VelocityTrack analyzes this shift on every target automatically. Approaching targets get color-coded red on the radar display, receding targets get color-coded green. Stationary targets (land, buoys, weather cells) get colored neutrally. Practical benefit: at a glance, you can identify which targets pose collision risk (the red ones approaching) vs which targets you're moving past (green) vs which are fixed (neutral). Major safety improvement vs traditional radar where every target looks the same and you've got to manually track each one to figure out its motion.
Pulse compression technology - what it does. Pulse compression is the modern marine radar technology that delivers high-quality target detection at both close and far ranges without the trade-offs of older 'pulse' radar (which had to choose between short-range resolution and long-range reach). The HALO24's pulse compression delivers: high-resolution close-range detection (resolving small targets like buoys, small boats, channel markers at close range), long-range detection (the 48 nm maximum reach), and Dual Range simultaneous operation (the radar can show both close and far ranges at the same time without choosing between them).
Dual Range mode - watching near and far simultaneously. Dual Range mode is one of the most useful HALO features for practical navigation. The radar simultaneously displays two distance ranges - typically a close-range scan (1-3 nm) for collision avoidance and a long-range scan (10-48 nm) for weather and overall situational awareness. You see both on the same display (typically split-screen on the chartplotter, or side-by-side panels). Practical benefit: keep watching for storms building offshore while still tracking close-range collision hazards from passing boats - no need to constantly switch between range settings to do both functions.
Preset operating modes. The HALO24 includes preset modes optimized for different operating scenarios: (1) Harbour mode - tuned for close-range detection in coastal navigation with high sensitivity to small targets like channel markers, buoys, small boats. (2) Offshore mode - tuned for open-water long-range detection with reduced sensitivity to wave clutter for better visibility of actual targets. (3) Weather mode - tuned for precipitation detection, showing rain bands and weather cells in detail. (4) Bird mode - highly sensitive mode tuned to detect flocks of birds following baitfish schools, useful for offshore fishing to find feeding birds that signal fish activity below. The presets let you quickly optimize the radar for the current operating conditions without manual tuning.
Chartplotter compatibility - Simrad ecosystem. The HALO24 integrates via Ethernet with Simrad chartplotters: NSS evo3, NSS evo3S, the new NSS 4 series (NSS4-10/12/16), NSO multi-display systems, and GO series chartplotters. Full integration includes: radar display with chart overlay (radar targets superimposed on the chart for spatial reference), MARPA target tracking (manual acquisition and automatic tracking of specific targets), AIS integration (combine AIS targets with radar targets for unified target picture), and full radar operation through the chartplotter interface (gain, sea state, EBL / VRM controls). Also compatible with sister-brand chartplotters from the parent company's other marine brands via Ethernet.
Install considerations. Plan for 6-12 hours for an experienced installer - radar installations require careful antenna mounting, Ethernet cable routing, and chartplotter integration. Tasks: mount the 24-inch dome antenna at typical radar height (15-25 ft above waterline for typical sportfishers and sailboats - the antenna height significantly affects radar range, higher is better), route the Ethernet cable from antenna to chartplotter helm location (avoid running parallel to other electronics cables to minimize interference), wire 12V power to the radar with proper fusing, connect Ethernet to compatible chartplotter, and run the radar setup procedure to calibrate the heading sensor alignment and tune the radar for your specific installation. For sailboats with masthead radar mounting, plan additional time for masthead cable routing.
Key Features
- Simrad HALO24 24-inch compact dome radar with VelocityTrack Doppler technology
- 48 nautical mile maximum range from compact 24-inch dome antenna
- 60 RPM ultra-fast rotation at ranges up to 2 nm (one full 360-degree sweep per second)
- VelocityTrack Doppler automatically color-codes approaching vs receding targets
- No limit to number of Doppler-tracked targets on screen simultaneously
- Pulse compression technology - high-quality detection at all ranges
- Beam sharpening for enhanced separation of small / distant targets
- Simultaneous Dual Range mode (watch near and far at the same time)
- Preset operating modes: harbour, offshore, weather, bird (for fishing)
- Bird mode tuned to detect flocks following baitfish (offshore fishing application)
- Ethernet integration with Simrad NSS evo3, evo3S, NSS 4, NSO, GO chartplotters
- Also compatible with sister-brand chartplotters via Ethernet
- Compatible with MARPA target tracking and AIS integration
- Radar overlay on chart for spatial target reference
- Full radar operation through chartplotter interface
- Industry-first feature set in compact dome form factor
- Sized for sailboats, fishing boats, smaller powerboats (vs larger open-array radars)
- 2-year limited Simrad / parent-company warranty
- Manufacturer Part Number 000-14535-001 / UPC 9420024173770
Why Buy from NVN Marine
- Authorized Simrad reseller, full manufacturer warranty
- NMEA member and ABYC certified, advice from real boat techs
- Same-day shipping before 3 PM ET on in-stock items
- NY headquarters and Fort Lauderdale flagship retail store
Technical specifications
| Title | Simrad HALO24 Compact 24-inch Dome Radar with VelocityTrack Doppler Technology |
|---|---|
| Brand | Simrad |
| Manufacturer Part Number | 000-14535-001 |
| UPC | 9420024173770 |
| Series | HALO |
| Type | Compact dome marine radar |
| Antenna Size | 24 inches (compact dome) |
| Maximum Range | 48 nautical miles |
| Technology | Pulse compression with beam sharpening |
| Doppler | VelocityTrack - automatic color-coding of approaching / receding targets |
| Ultra-Fast Rotation | 60 RPM at ranges up to 2 nm (one full sweep per second) |
| Standard Rotation | 24-48 RPM at longer ranges (auto-selecting) |
| Dual Range Mode | Yes - simultaneous near and far range display |
| Preset Modes | Harbour, Offshore, Weather, Bird (for offshore fishing) |
| Network Protocol | Ethernet (Simrad / parent-company) |
| Compatible Chartplotters | Simrad NSS evo3, evo3S, NSS 4, NSO, GO series. Also sister-brand chartplotters |
| MARPA Support | Yes (with compatible chartplotter) |
| AIS Integration | Yes (with chartplotter and AIS receiver / transponder) |
| Radar Overlay | Yes (overlay on chartplotter chart) |
| Voltage | 12V or 24V DC (auto-detecting) |
| Power Consumption | Approximately 1.5-2 amps at 12V (about 20-25 W typical) |
| Recommended Breaker | 7.5A dedicated |
| Recommended Cable | 14 AWG marine-grade tinned (12 AWG for very long runs) |
| Mounting Height | 15-25 feet above waterline typical for sportfishers and sailboats |
| Suitable Boats | Sailboats, fishing boats, smaller powerboats (vs larger open-array radars) |
| Warranty | 2-year limited Simrad / parent-company warranty |
Frequently asked questions
What's the difference between HALO20+ and HALO24?
Same radar platform (HALO series with VelocityTrack Doppler and 60 RPM ultra-fast rotation), different antenna sizes. HALO20+ is a 20-inch dome with 36 nm maximum range. HALO24 (this product) is a 24-inch dome with 48 nm maximum range. The larger 24-inch antenna delivers more transmit / receive aperture for slightly better resolution and longer range, but takes more mounting space and weighs more. For typical sailboats and mid-size powerboats, the HALO20+ is plenty - the HALO24 is the right call when you specifically want the longer range and larger antenna aperture, typically on larger sportfishers and cruising yachts. Both have the same Doppler and 60 RPM features.
What does VelocityTrack Doppler actually do?
VelocityTrack analyzes the Doppler effect on every radar target automatically - the slight frequency shift in the reflected signal indicates whether the target is moving toward you or away. Approaching targets are color-coded RED on the radar display (potential collision risk). Receding targets are color-coded GREEN (you're moving past them, less risk). Stationary targets (land, buoys, weather) are colored neutrally. At a glance, you can identify which targets pose collision risk vs which are safe to ignore. Major safety improvement vs traditional radar where every target looks the same and you have to manually MARPA-track each one to determine its motion. No limit to the number of Doppler-tracked targets - works on all visible targets simultaneously.
What's the 60 RPM benefit?
60 RPM rotation means the antenna spins 60 times per minute - one complete 360-degree radar sweep every single second. Compare to typical radar at 24 RPM (2.5 seconds per sweep) or 36 RPM (1.7 seconds per sweep). The faster rotation matters for collision avoidance because targets can move meaningfully between sweeps in the older 2.5-second update cycle - by the time you see a target on screen, the actual position may have shifted noticeably. With 60 RPM updates, the radar display is almost real-time, showing target position as it actually is rather than 2.5 seconds delayed. The 60 RPM mode activates automatically at radar ranges up to 2 nautical miles - exactly where collision avoidance happens. At longer ranges, normal rotation speeds.
What chartplotters does it work with?
Full integration via Ethernet with Simrad chartplotters: NSS evo3, NSS evo3S, NSS 4 series (NSS4-10/12/16), NSO multi-display systems, GO series chartplotters. Also compatible with sister-brand displays from the parent company's other marine brands via Ethernet. For non-compatible chartplotters, the HALO24 won't integrate. Plan to use this radar with one of the supported chartplotter brands for proper integration. For boats with no chartplotter, the HALO24 isn't a standalone radar display - it requires a compatible chartplotter to function.
What's Dual Range mode?
The radar simultaneously displays two different distance ranges - typically a close-range scan (1-3 nm) for collision avoidance and a long-range scan (10-48 nm) for weather and overall situational awareness. You see both ranges on the same chartplotter display, typically as split-screen panels. Practical benefit: keep watching for storms building 30+ nm offshore while still tracking close-range collision hazards from passing boats. No need to constantly switch between range settings to do both functions. The pulse compression technology lets the radar handle both ranges without performance trade-offs.
What's the bird mode for?
Bird mode is a highly sensitive radar tuning specifically optimized to detect flocks of birds following baitfish schools - useful for offshore fishing where bird activity often indicates fish below. The radar's increased sensitivity and specific signal processing reveal bird flocks that would otherwise blend into wave clutter or be filtered out. For offshore tuna, mahi, billfish, and similar applications where finding birds finds fish, the bird mode is a meaningful tool. Combined with the long-range capability (spot birds 5-10 nm away vs visual range of 1-2 nm), it significantly extends the search range for productive water.
How is it mounted?
The 24-inch dome antenna mounts at typical radar height: 15-25 feet above the waterline for typical sportfishers and sailboats - higher antenna means longer range (radar range is line-of-sight, limited by earth curvature). Mounting locations: radar arch (the dedicated structure on many sportfishers specifically for radar mounting), hardtop (mid-size center consoles and walkaround cuddies), mast (sailboats - typically masthead or upper mast mounting), or T-top (smaller center consoles). For sailboats, masthead mounting is the highest point but requires routing the Ethernet cable up the mast. For powerboats, hardtop or arch mounting is most common.
What does the install involve?
Plan for 6-12 hours for an experienced installer. Tasks: antenna mounting (using included or custom mounting hardware), Ethernet cable routing from antenna to chartplotter (avoid running parallel to other high-current cables to minimize interference), 12V power wiring to the radar with proper fusing (typical 7.5A circuit breaker), Ethernet connection to compatible chartplotter, and radar setup procedure to calibrate heading sensor alignment and tune for your specific installation. For sailboat masthead installations, plan additional time for cable routing through the mast - often done while the mast is down for other rigging work.
What power does it use?
12V or 24V DC operation (auto-detecting). Power consumption is moderate: typical operation around 1.5-2 amps at 12V (about 20-25 watts), with peak draw higher during transmission. Install with a dedicated 7.5A circuit breaker on a clean 12V (or 24V) circuit. Use 14 AWG marine-grade tinned cable from the boat's electrical panel to the radar antenna for typical cable runs - 12 AWG for very long runs. The radar doesn't strain typical boat electrical systems.
Does it work in rain?
Yes - the radar dome is fully waterproof for marine use including direct rain exposure, wave spray, and washdown. Rain affects radar performance differently than equipment damage: heavy rain creates radar 'clutter' on the display that can mask actual targets. The HALO24's pulse compression technology and weather mode optimize for rain conditions, suppressing rain clutter while preserving target visibility. Severe weather conditions (heavy thunderstorms) reduce effective range as the rain absorbs the radar signal - this affects all marine radars to some degree, not specific to HALO24.
Can I add MARPA target tracking?
Yes - MARPA (Mini Automatic Radar Plotting Aid) target tracking is supported on the HALO24 when integrated with a compatible chartplotter. MARPA lets you manually acquire individual targets (touch the target on the chartplotter), after which the system automatically tracks the target's course and speed, providing CPA (Closest Point of Approach) calculations and collision warnings. Useful for: tracking specific commercial vessels in shipping lanes, monitoring approaching weather, and keeping tabs on specific recreational vessels in busy waters. The Doppler-based VelocityTrack provides automatic motion indication on ALL targets without manual selection, while MARPA provides detailed tracking on specific targets you've manually acquired.
What's the warranty?
Standard Simrad / parent-company limited warranty applies, typically 2 years from purchase covering manufacturing defects in materials and workmanship. Warranty service runs through authorized dealers and service centers in the U.S. and internationally. Save the receipt, installation documentation, and original packaging for warranty service.
