RAYMARINE QUANTUM 2 Q24D Doppler Radar Antenna / without cable
SVB item number: 81654
Manufacturer no.: E70498
Raymarine's Quantum 2 CHIRP pulse compression radar with doppler target identification technology provides you with extra safety on both long and short distances. It is supplied without power and data cables. Product details
Recommended retail price:
€2,850.05
only
€2,349.95
-18%
You save: €500.10
Shipping information:
Shipping of bulky goods
Available on 10.06.2026
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Available variants
RAYMARINE
QUANTUM 2 Q24D Doppler Radar Antenna / 10m power and data cable
€2,909.55
only €2,449.95
RAYMARINE
QUANTUM 2 Q24D Doppler Radar Antenna / 15m power and data cable
€2,969.05
only €2,499.95
At a glance!
Product data
- SVB item number 81654
- EAN 723193823101
- Manufacturer no. E70498
- Description Raymarine - QUANTUM 2 Doppler Radar Antenna / without cable
- Antenna technology Radom
- Tx power 20 W
- Max. range 21 nm
- Beam width 4.9 °
- Doppler mode Yes
- Rotational speed 24 RPM
- WiFi Yes
- (M)ARPA Yes
- Compatible displays AXIOM DV, AXIOM RV, AXIOM+ RV, AXIOM Pro S, AXIOM Pro RVX, AXIOM 2 Pro S, AXIOM 2 Pro RVM
- Weight 5.6 kg
- Operating voltage 12 V, 24 V
- Shipping information Shipping of bulky goods
Product details
Raymarine - QUANTUM 2
Raymarine's QUANTUM 2 CHIRP pulse compression radar with doppler target identification technology provides you with extra safety on both long and short distances.
Due to the special processing of Doppler radar data, it is possible to display moving targets in color on the display.
Due to the special processing of Doppler radar data, it is possible to display moving targets in color on the display.
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.
Key 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.
Doppler radar is tuned specifically to detect the radar echo frequency shift returned by moving vs. stationary targets.
Quantum 2 then uniquely color codes moving targets to indicate whether they are getting closer, or moving away.
Inbound targets are colored red.
Outbound targets are colored green.
Color coded targets make it simple to pick out moving traffic from other stationary targets like land, navigation aids or stopped/anchored vessels.
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.
Doppler radar is tuned specifically to detect the radar echo frequency shift returned by moving vs. stationary targets.
Quantum 2 then uniquely color codes moving targets to indicate whether they are getting closer, or moving away.
Inbound targets are colored red.
Outbound targets are colored green.
Color coded targets make it simple to pick out moving traffic from other stationary targets like land, navigation aids or stopped/anchored vessels.
Fully 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.
Quantum 2 also features Raymarine’s new True Trails target history display. The True Trails features 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.
Like every Raymarine Quantum system, you’ll also benefit from a rugged and lightweight design that is super-easy to install. Quantum 2 has very low power consumption making it especially friendly to vessels running exclusively on battery power. Quantum 2 with Doppler can be installed in a traditional wired configuration, or use its built-in Wi-Fi technology to connect it to your Raymarine MFD.
Technical Specifications
|
General Specifications |
|
| Dimensions: diameter x height | 541.0 mm x 209.5 mm |
| Weight: | 5.6 kg |
| Supply voltage: | Either 12 V 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): 2W |
| 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: | 100 kts |
|
Transmitter |
|
| Type: | X-band solid-state transmitter with pulse compression technology |
| Transmit frequency: | 9354 MHz to 9446 MHz |
| Peak power output: | 20 W |
| Duplexer: | Circulator |
| Pulse widths (3 dB): | 4 ns to 14.7 |
| Chirp bandwidth: | Chirp lengths: 40 ns to |
| pulse repetition frequency: | 2083 Hz |
| Chirp bandwidth: | Up to 32 MHz |
| 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 | 24 rpm nominal |
|
Doubler |
|
| Traget Tracking | Tracking of 10 simultaneous MARPA and / or ARPA targets (with Doppler-assisted ARPA) |
| Target Filtering: | True Motion mode identifies only those objects that are moving relative to the vessel |
|
Compatibility |
|
| Raymarine AXIOM series (starting with Lighthouse version 3) | |
| Raymarine AXIOM Pro Series (starting with Lighthouse version 3) | |
| Raymarine eS series (starting with Lighthouse version 3) | |
| Raymarine gS series (starting with Lighthouse version 3) | |
Delivery without multifunction display!
Documents
Certificate
PDF (213,81 KB)
Item 81654, 81655, 81656
Manual
PDF (4,05 MB)
Item 81654, 81655, 81656
Drawing
PDF (2,44 MB)
Manual
PDF (4,23 MB)
Manual
PDF (4,23 MB)
Systems
Product safety
by
Dimitris T.
6/19/2025
Verified purchase
Variant:
81655
in use on a Blackfin Boats - Comby 33 build 1994
6/19/2025
Verified purchase
Variant:
81655
in use on a Blackfin Boats - Comby 33 build 1994
by
Kostyantyn K.
5/22/2025
Verified purchase
Variant:
81656
in use on a Bavaria Yachtbau GmbH - Bavaria 37 Cruiser
5/22/2025
Verified purchase
Variant:
81656
in use on a Bavaria Yachtbau GmbH - Bavaria 37 Cruiser
Images for this rating
Customers ask customers
General question
Craig B.
| Jun 20, 2019
Does this radar need a Raymarine MFD or can it talk directly to an iPad / Laptop ?
Answer
Martin H.
| Jun 20, 2019
The radar cannot talk directly to an iPad, you need to interface it either with WiFi or network cable to the compatible MFD. You can then interface the entire system with an iPad via various Raymarine Apps
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