GARMIN GMR FANTOM 18 Doppler Radar Antenna

Only 1 in stock
SVB price: €1,848.70
You save: 13%
Excl. VAT, excl. shipping costs.
This is a NET-price excluding German VAT. Shipments to countries outside of the EU may be subject to import duties and taxes.
€1,848.70 This is a NET-price excluding German VAT. Shipments to countries outside of the EU may be subject to import duties and taxes.
Available variants:
Image of GMR FANTOM 24 Doppler Radar Antenna

GARMIN GMR FANTOM 24 Doppler Radar Antenna

The 24-inch, 40 W solid-state Garmin GMR Fantom 24 dome radar features MotionScope technology, which uses the Doppler effect to detect and highlight moving targets to help you avoid potential collisions. Fully integrates with select Garmin chartplotters.

Article Number
Model no.
Garmin - GMR FANTOM 18 Radar Antenna
Antenna type
Tx power
40 W
Max. range
48 nm
Beam width
5.2 °
Doppler mode
Rotational speed
48 RPM
7.7 kg
Compatible displays
GPSMAP 8410, GPSMAP 8410 xsv, GPSMAP 722, GPSMAP 722 Plus, GPSMAP 722xs, GPSMAP 722xs Plus, GPSMAP 723, GPSMAP 723xsv, GPSMAP 922, GPSMAP 922 Plus, GPSMAP 922xs, GPSMAP 922xs Plus, GPSMAP 923, GPSMAP 923xsv, GPSMAP 1022, GPSMAP 1022xsv, GPSMAP 1222, GPSMAP 1222 Plus, GPSMAP 1222 Touch, GPSMAP 1222xsv, GPSMAP 1222xsv Plus, GPSMAP 1222xsv Touch, GPSMAP 1223, GPSMAP 1223xsv, GPSMAP 7407, GPSMAP 7407xsv, GPSMAP 7408, GPSMAP 7408xsv, GPSMAP 7410, GPSMAP 7410xsv, GPSMAP 7412, GPSMAP 7412xsv, GPSMAP 7416, GPSMAP 7416xsv, GPSMAP 8412, GPSMAP 8412xsv, GPSMAP 8416, GPSMAP 8416xsv, GPSMAP 8417 MFD, GPSMAP 8422 MFD, GPSMAP 8424 MFD

Product details

18-inch Dome Radar with MotionScope™ Technology

  • 18-inch, 40 W solid-state, dome radar
  • MotionScope™ technology uses the Doppler effect to detect and highlight targets moving toward you or away in different colors to help avoid collisions, find flocks of birds, and track weather
  • Pulse Compression technology provides high resolution while maximizing energy, to enhance detection and identification of targets
  • Target Size allows you to adjust the size of objects on the radar image
  • 20 foot to 48 nautical mile detection range

The 18-inch, 40 W solid-state Garmin GMR Fantom 18 dome radar features MotionScope technology, which uses the Doppler effect to detect and highlight moving targets to help you avoid potential collisions. Fully integrates with select Garmin chartplotters.

High-power 40 W Radar with 5.2 Degree Beam

You get excellent close- and long-range target detection ranging from as close as 20 feet to 48 nautical miles, even in fog or rain. Its 5.2 degree horizontal beamwidth provides a high resolution image and high antenna gain so it can pick out targets at a distance. The result is this radar paints a clear, concise image of the shoreline, other vessels and impending weather — right on your Garmin chartplotter. You get consistent target positions, excellent target separation and reliable operation. Its 8-bit true color imagery also helps you discriminate large targets from small ones and enhances target separation. Radar data is overlaid onto charts (autopilot or heading sensor recommended). Low power consumption, instant turn on and no delay from warming up as with magnetron radars. Rotation speeds of 24 for reduced power consumption and 48 rpm to provide fast screen updates.

MotionScope Doppler Technology

GMR Fantom radars use the Doppler effect to detect and highlight moving targets to help you avoid potential collisions, find flocks of birds and track weather formations. The Doppler effect is the frequency shift in the radar echo due to the relative motion of the target. This allows for instant detection of any targets moving toward or away from the radar. MotionScope highlights the moving targets in different colors on the radar display so you can navigate around other boats or severe weather, or toward fishing spots where birds are feeding at the surface.

Target Size
Allows you to adjust the size of objects on the radar image.

Auto Bird Gain
Fishermen know, when you find birds at the water’s surface, you’ll also find fish. To further improve your fishing experience, use Auto Bird Gain, which helps to locate flocks of birds at the water’s surface where baitfish are also likely to be found.

Echo Trails
A fading “trail” is left on the screen to help you quickly and easily identify moving targets and potential collision threats. Trails are corrected for your boat’s rotation when an autopilot or heading sensor is connected to your Garmin network.

Dual Range
Single radar antenna is capable of providing split screen images on your chartplotter side-by-side, with independent range setting and controls for both close and long range.

Dual Radar Support
Provides redundancy and the ability for each display unit on the boat to select data from 1 of 2 different radar sources.

Dynamic Auto Gain
Dynamic Auto Gain automatically adjusts to your surroundings for optimal performance in all conditions.

Dynamic Sea Filter
Dynamic Sea Filter automatically adjusts gain to changing sea conditions with user options for low, medium or high filtering.

Radar Overlay
Overlays the radar image on the chartplotter’s map page. An autopilot or heading sensor is recommended for best results.

MARPA Target Tracking
Mini-automatic radar plotting aid (MARPA) tracks up to 10 selected targets, helping you keep track of other vessels and avoid collisions.

Guard Zone
Set the safety zone and receive an alarm when an object enters the zone.

Variable range markers (VRM) and electronic bearing lines (EBL) allow rapid measurements of distance and bearing to vessels and land.

All Garmin radars are designed to be easy to install and easy to use. There are no complex user settings to adjust; just install your radar and start using it. You can rely on the GMR Fantom radar to provide reliable, optimum performance in all conditions. Because, it’s your time.

Technical Data:

Dimensions 50.8 cm (diameter), 24.8 cm (height) [20" (diameter), 9.75" (height)]
Weight 7.7 kg (17 lbs)
Waterproof IPX7
Antenna length 43.18 cm (17")
Power consumption 3 W (standby) 18-24 W (regular usage)
RPM 24/48 rpm (dual rotation)
Transmit power 40 W
Power supply 10-32 V DC
Beam width 5.2° horizontal, 25° vertical
Max. range 48 nm
Min. range 6 m
Radar type Radome
High definition Yes
MARPA traget tracking Yes (requires heading sensor, sold seperately)
Guard zone alarm Yes
Colour 8 bit
Radar overlay support Yes
Dual range support Yes
No transmit zone Yes
Additional MotionScope: Yes, Auto Bird Gain: Yes, Dual Radar Support: Yes, Echo Trails: Yes
Delivery contents GMR Fantom 18, Mounting hardware kit, Power cable (15 m/49.21 ft), Network cable (15 m/49.21 ft), Installation instructions, Mounting template


en-flag Manual
PDF, 889,45 KB
de-flag Manual
PDF, 1,13 MB
es-flag Manual
PDF, 891,89 KB
fr-flag Manual
PDF, 1,03 MB
it-flag Manual
PDF, 1,03 MB

What other SVB customers have to say

100% real reviews

1 customer reviews

4 (out of 1 ratings)
5 Stars
3 Stars
2 Stars
1 Stars
Cas Greyling V.
by Cas Greyling V. Flag of Namibia 7/18/2021 Verified purchase
Easy to install and easy to use! Lifesaving!
Very easy to use and very handy when the fog come in!

Rate product

How would you rate this product?
Completely fails to meet my expectations
Only some expectations are met
Meets my basic expectations
Slightly better than my general expectations
Fully exceeds my expectations
Click on the stars to rate

Comparison with other products

This product
Item no.
Customer ratings
No rating yet
Garmin - GMR FANTOM 18 Radar Antenna
Garmin - GMR FANTOM 24 Radar Antenna
7.7 kg
9.5 kg
Beam width
5.2 °
3.7 °
Availability / Price
only €1.848 70
Buy now
only €2.184 83
Buy now

Customers ask customers

Ask other SVB customers who have already purchased this product from us about their experience.

Your question will be automatically forwarded to other SVB customers and published on the product page. Please do not ask any questions which can only be answered by the SVB team – such as the status of an order or product availability. You are also more than welcome to contact our SVB team by email at: or by phone on: +49 (0)421 57290510 .

Technical question

User image of Julian  K.
Julian K. asked
on Sep 8, 2020
Flag of English How can I connect the radar antenna to my chart plotter?
SVB expert image
Garmin S. answered
on Sep 8, 2020
You can connect the Radar antenna with the supplied Garmin marine Network cable.
User image of Olegs G.
Olegs G. asked
on Jan 9, 2024
Flag of English I have gsrmin gpsmsp720s, I can connect to gmr 18 fantom?
No answers yet. Be the first to answer this question!