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Garmin GMR Fantom 18x Dome Radar - White

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This incredibly powerful 18″ dome radar has beauty and brains and 50 watts of output power.


  • GMR Fantom brings the power. Fifty watts of it, actually.
  • See targets clearly, and adjust their sizes as needed.
  • With power save mode, you get to choose when to use full power and when to pull back.
  • Every second of power usage counts. Cut back even more by choosing your active times down to the second
  • MotionScope™ technology shows targets in colour as they move toward you or away.

High-Powered Radar - The 50-watt solid-state dome radar has a range from 20’ to 48 nautical miles, even in fog or rain. Plus, it delivers up to 60 RPM rotation speed for a refresh rate that can detect movement at any speed.

High-Resolution Radar - High-resolution images and high antenna gain help to pick out targets at a distance, while 8-bit true colour imagery enhances target separation.

MotionScope Technology -  MotionScope uses the Doppler effect to detect moving targets and highlight them in different colours, so you can navigate around other boats or severe weather or toward fishing spots where birds feed at the surface.

Power Save Mode - The power save feature lets you choose when you need more power or less, so you have power when you need it and conserve it when you don’t.

Timed Transmit Mode - With timed transmit mode, you can even specify active and inactive times down to the second to help reduce power consumption, so you can stay on the water longer than ever.

Intuitive Operation - The radar doesn’t have any complex user settings to deal with, so they’re easy to install and start using.

Physical & Performance

  • Maximum range: 48 NM
  • Radar type: Radome
  • Dimension: 18x: 20″ x 9.80″ (50.80 x 24.90 cm)
  • Transmit power: 50 W
  • Beam width: 18x: 5.20° horizontal, 25° vertical
  • Power Input: 10-32 V DC
  • Antenna Length: 18x: 17″ (43.18 cm)
  • Rotation speed (RPM) Up to 60 rpm, depending on settings
  • Minimum range: 6 metres
  • Waterproof: IPX7
  • Weight: 18x: 14.0 lbs / 24x: 17.40 lbs


  • Auto Gain: Dynamic
  • Echo Trails: Yes
  • Max power consumption, transmitting (power save)  24 W
  • Overlay: Yes
  • Dual radar support: Yes
  • MotionScope: Yes
  • Auto Bird Gain: Yes
  • Power Consumption (standby)  4 W
  • MARPA target tracking:  yes (requires heading sensor, sold separately)
  • Max power consumption, transmitting (normal mode) 33 W
  • Scan averaging: Yes
  • Target size: Yes

 In The Box

  • GMR Fantom 18x Dome Radar
  • Power cable (15 m/49.21 ft)
  • Network cable (15 m/49.21 ft)
  • Network adapter cable (GMN 2.0 Small to GMN)
  • Installation instructions
  • Mounting hardware kit and template
  • Garmin Marine Network adapter cable (small connector to large connector)


The Sydney-to-Perth rail link is currently closed due to heavy rain and flooding. The Melbourne-to-Adelaide rail link is also closed due to damage caused by a train derailment.

This situation is causing extended delays of deliveries to Western Australia for the following shipping services:

- Australia Post eParcel - Regular
- TNT Road

If you need an order in Western Australia urgently, consider using  the "Australia Post eParcel - Express" service if it is available for your order. Alternatively contact our WA MAIL ORDER DEPARTMENT to discuss options based on stock already available in WA.


Australia Post and our Commercial Couriers are expecting the festive season to be extra busy this year. Based on their advice, we cannot guarantee orders placed after the cut-off dates listed below will be delivered by Christmas.

To avoid disappointment place your Christmas orders as early as possible.

State Regular Express
ACT 11th Dec 15th Dec
NSW 11th Dec 15th Dec
NT   5th Dec 11th Dec
QLD 11th Dec 15th Dec
SA 11th Dec 15th Dec
TAS 11th Dec 15th Dec
VIC 11th Dec 15th Dec
WA   1st Dec 11th Dec


Overseas, offshore islands and distant mainland locations may take up to 3 or 4 weeks to deliver. Please contact your local Mail Order Department to discuss specific details relating to your situation.


All orders are shipped from our Brookvale, Sydney order fulfilment centre. Orders are normally shipped within 5 business days - most quicker!

Shipping day estimates after your order leaves our fulfilment centre in Sydney are based on Australia Post domestic delivery times:

 State   Regular
 ACT   2 - 3 business days   1 - 2 business days
 NSW   2 - 4 business days   1 - 3 business days
 NT   4 - 13 business days   3 - 5 business days
 QLD   3 -12 business days   2 - 4 business days
 SA   3 - 5 business days   2 - 4 business days
 TAS   4 - 8 business days   2 - 4 business days
 VIC   3 - 5 business days   2 - 3 business days
 WA   5 - 10 business days   2 - 6 business days

Last updated 12/09/2023

* These delivery times are an estimate and actual delivery times may vary based on peak periods and other external factors. Bulky orders may take longer.

Shipping rates are automatically calculated based on live quotes supplied by our shipping partners. The quote takes into consideration, the bulk of your cart, where you want it delivered and if you want express or standard shipping.

Get a shipping rate estimate by adding items to your online cart. Go to the cart by clicking on the shopping cart icon located at the top right of the page. Then enter your shipping destination information into the "Estimate Shipping and Tax" section of the shopping cart summary.

International Shipping

We are currently unable to deliver online orders outside of Australia.

If you are located outside of Australia and wish to place an order offline. Please contact our Mail Order department or send us an enquiry via the orange help bubble located at the bottom right of this page.



Online purchases can be returned/exchanged within 30 days. Some exclusions do apply.

Visit our Returns Policy page for details on how you can return an item.