Raymarine Quantum 2 CHIRP Doppler Radar
Using advanced Doppler processing, the system instantly highlights moving radar contacts and color codes them to indicate whether they are inbound or outbound. The Quantum 2 Doppler Radar makes it easy to discern potentially dangerous targets when navigating in high-traffic areas.Easily identify dangerous targets
Raymarine Quantum 2 Doppler target processing readily identifies and color codes moving radar contacts for instant recognition and reduced risk of collision.Superior collision avoidance
Quantum 2 MARPA mode provides an effective means of dangerous target tracking. Raymarine MARPA target tracking is the same technology trusted by the United States Coast Guard.Super-easy to install and lightweight design
Quantum 2 has very low power consumption and it can be installed in a traditional wired configuration, or use its built-in Wi-Fi technology to connect it to your Raymarine MFD.
Superior performance for situational awareness
CHIRP Pulse Compression detects contacts as close as 18-feet for zero-visibility navigation and up to 24-mile range for early detection of traffic, navigation aids, landfall and weather.Raymarine Quantum 2 CHIRP Doppler Radar features
- Doppler moving target display allows for superior situational awareness at-a-glance
- Fully automatic ARPA target tracking, along with manual MARPA mode
- Adjustable TrueTrails target history shows the motion history of moving contacts
- CHIRP Pulse Compression detects contacts as close as 18-feet for zero-visibility navigation
- 24-mile range for early detection of traffic, navigation aids, landfall and weather
- Immediate awareness – Quantum starts up and is ready to go in seconds
- Superior interference rejection eliminates noise from other radars
- Simplified installation with Wi-Fi or thin wire network connectivity
- Easy upgrade – Quantum 2 fits the same bolt pattern as other Raymarine scanners
- Lightweight and easy to install – Quantum weighs up to 50% less than comparable magnetron radars
- Safe emissions – mount Quantum anywhere onboard
- Low power consumption for extended battery life under sail
How Doppler radar works?
- Microwave energy waves are bounced off of a distant target, just like conventional radar.
- Moving targets send back echoes whose frequencies shift upward or downward from what was originally transmitted.
- For inbound targets, the frequency increases as the leading edge of the returning echoes are received more frequently as the target’s range decreases.
- For outbound targets, the frequency drops as the returning echoes spread out as its range increases.
- Doppler radars are engineered to detect these small shifts in wave frequency, and use them to classify moving radar targets.
Automatic target acquisition and tracking
The Quantum 2 also features fully automatic target acquisition and tracking. Configure custom safety or alarm zones and be alerted to new radar contacts entering the zone. Quantum 2 can begin tracking those contacts automatically, calculating their course, speed, closest point of approach and more. You’ll be alerted to dangerous contacts with audible alerts and easy to understand on-screen graphics.

True Trails
Quantum 2 features Raymarine’s new True Trails target history display. The True Trails feature enables you to see a historical “wake” behind every moving contact. This additional information makes it even easier to interpret the motion of other vessels, and make smart maneuvering decisions to pass safely.TECHNICAL DETAILS
MODEL | RAYMARINE QUANTUM 2 |
General Specifications | |
Dimensions Diameter | Height | 541.0 mm | 209.5 mm |
Weight | 5.6 kg |
Supply voltage | Either 12 V dc or 24 V dc nominal Minimum: 10.8 V dc | Maximum: 31.2 V dc |
Power consumption | Transmit mode (maximum): 17 W | Standby mode: 7 W | Sleep mode (applies only to radars connected via Wi-Fi): 2 W |
Waterproofing | IPX6 |
Operating temperature range | -10°C to +55°C |
Storage temperature range | -25°C to +70°C |
Additional storage conditions | Store upright; do not block vents on underside |
Humidity | Up to 95% at 35°C |
Maximum wind speed | 100kts |
Transmitter | |
Type | X-band solid-state transmitter with pulse compression technology |
Transmit frequency | 9354 MHz to 9446 MHz |
Peak power output | 20W |
Duplexer | Circulator |
Pulse widths (3 dB) | 40 ns to 14.7 us |
Chirp lengths | Chirp lengths: 400 ns to 20 us |
Pulse reptition frequency | 1200 Hz to 4800 Hz |
Chirp bandwidth | Up to 32MHz |
Standby mode | Scanner rotation - OFF | Scanner transmission - OFF | Wi-Fi link - ON |
Antenna | |
Type | Patch array |
Beamwidth (nominal) | Horizontal: 4.9° | Vertical: 20° |
Polarization | Horizontal |
Rotation speed | 24rpm nominal |
Doppler | |
Target tracking | Tracking of 25 simultaneous MARPA and / or ARPA targets |
Target filtering | True Motion mode identifies only those objects that are moving relative to the vessel |
Compatibility | |
Radar type | Quantum 2 with Doppler |
MFD compatibility | Axiom and Axiom Pro |
Perfect for | Sailboats, RIBs, and smaller powerboats |
Type | Solid State CHIRP Pulse Compression with Doppler target tracking |
Range performance | 24NM |
Performance | Lightweight and easy to install. Excellent short and long range performance. Detect targets as close as 18ft |
Automatic Bird Mode | No |
MARPA Target Tracking | Yes |