Defender Home Page
Phone: 800-628-8225 Fax: 800-654-1616 Int'l.: 860-701-3400 Email: Contact Us
Follow us on Facebook
Shipping Info
Defender Home Page
Your Cart
null View Cart View Shopping Cart
null Check My Order(s)
null Track My Package(s)
Conversion Chart
Shopping Areas
Boats & Motors
null Defender Seal null
promo A
promo B
promo C
promo D
Furuno DRS4W 4 kW Wireless Radar Antenna
Upgrade Your Helm And Save Up To $1,000. Just In Time To Discover Your Adventure! Purchase Any Quantity Of Furuno Qualifying Products & Get Cash Back. The More You Buy, The More You Save! From February 14 Thru May 31, 2019.

Furuno DRS4W 4 kW Wireless Radar Antenna

  • Dimensions: 19" Diameter, Beam Width: Horiz.: 7.2° / Vert.: 25°
  • Transceiver: 4 kW, Maximum Range: 24 Nautical Miles, Includes 15 Meter Cable
  • Wireless 2.4 GHz LAN Accessible from iOS Devices* (Requires Free App)
  • Item #: 
    Model #: 


    Shipping Weight: 
    45.46 Lbs.
    List Price: 
    Our Price:
    Status:  null In Stock

    Quantity : 

    Shipping weight reflects calculated Dimensional Weight and is not actual product weight - see here for details.

    Package Includes:

    • Antenna unit RSB-126
    • Power supply cable 10/15/20/30 m


    • The Furuno DRS4W is a 4 kW Wireless Radar antenna, powerful yet compact in size
    • Extremely economical power consumption (24 Watts)
    • Wireless LAN, first Radar in the world accessible from your iOS devices
    • No extra wiring needed except the power source, making installation a breeze
    • Exceptionally simple setup and intuitive operation with user-friendly & free iOS app
    • Fast and easy installation process w/only a single power cable
    • Simple touch interface with familiar gestures
    • Vivid, multi-color Radar target presentation
    • User selectable range scale from 0.125 to 24 nm
    • Accessible from (2) iOS devices – simultaneous operation
    • Furuno 1st Watch Wireless Radar, the world's first wireless Radar that you can access directly from your iOS devices
    • Move around and explore
      • you can do things previously impossible with the new FURUNO 1st Watch Wireless Radar
      • You can bring the Radar display whenever you go, even put it on the iPhone in your pocket
      • Since the display is untethered, you are free to roam the vessel while maintaining full situational awareness of your surroundings
        • For example, you can bring the Radar display with you when jumping into the cabin quickly to grab fishing gear or other tools needed during your voyage
    • Easy to use at 1st glance
      • Plug in the Radar, set up the free app from App Store and you're good to go
      • With familiar gestures it's a breeze to use; you can even use two iOS devices simultaneously
      • The app has been created with simplicity and efficiency in mind, providing reliable information that is easily accessible
      • Less cables, more flexibility Installation is simple with its compact and lightweight Radar antenna
      • Mount it, plug in the power cord and you're done
      • Due to the portability of the iOS devices this makes the system a good option for boats where space constrictions are of concern
      • Please note that iOS devices and their accessories are sold separately and do not come included with this product


  • Antenna:
    • Peak Output Power: 4 kW
    • Type: 488 mm
    • Radome: 19 inch
    • Frequency: 9410 30 MHz
    • Beam Width
      • Horizontal: 7.2°
      • Vertical: 25°
    • Range Scales: 0.125 to 24 nm
    • Antenna Rotation Speed 24 rpm
    • Wind Load Relative wind 70 kn
  • * Wireless LAN:
    • The number of connectable iOS devices: (2) Units
    • Communication Frequency 2.4 GHz band
  • Application:
    • Name "Marine Radar" from Apple App Store
    • Display iPad / iPad min i /iPhone (Customer supply)
    • Compliant OS iOS6/iOS7
    • Screen Orientation Portrait/Landscape (iPad, iPad mini only)
    • Langauge English
    • Method of obtaining "Marine Radar" at App Store (Free of charge)
    • Mode
      • Full screen
      • Day/Night, Gain (auto)
      • STC (auto)
      • Rain
      • Auto Noise rejecter
      • Off center
      • Cursor position
        • iPad , iPad mini
  • Power Supply:
    • Power Input: 12 / 24 Volts DC
    • Draw: 2.1-1.0 Amps (max)
  • Environment:
    • Temperature -25° C to +55° C
    • Waterproofing IP26
  • Equipment List
    • Standard:
      • 1. Antenna unit RSB-126
      • 2. Power supply cable 15 m
    • Optional:
      • 1. Radome mount OP03-93 (Sold Separately)

  • Documentation available at the following links:

    Furuno GP1871F GPS/WAAS Chartplotter with built-in CHIRP Fishfinder
    Item #: 261665
  • Display: 7", Includes 72 Channel GPS with Internal Antenna
  • Power: 12-24 Volt DC, Draw: 1.1 to 0.6 Amp
  • Transducer Sold Separately
  •  Include

    Model #:
    Furuno GP1971F GPS/WAAS Chartplotter with built-in CHIRP Fishfinder
    Item #: 261666
  • Display: 9", Includes 72 Channel GPS with Internal Antenna
  • Power: 12-24 Volt DC, Draw: 1.1 to 0.6 Amp
  • Transducer Sold Separately
  •  Include

    Model #:
    Seaview 14" Aft-Leaning Modular Mount
    Item #: 261737
  • Application: Radomes 18" - 24" dia., Satdomes up to 16" dia., and Cameras
  • Material: Marine Grade Aluminum, Color: White, Dimensions: 7" x 7" x 14"
  • Seaview Top Adapter Plate Required (Sold Separately)
  •  Include
    Model #:

    Have A Suggestion?

    Help us make our site better for everyone! Let us know you've found something wrong or frustrating on this page and we will improve it. Please mark each that apply.

    Product has been improperly categorized
    Page loads too slowly
    Product information is incorrect
    Page has errors or bugs
    Site is frustrating or difficult to use
    Product image is missing or wrong
    Cannot find my size
    Spelling errors on page
    Not enough product information

    Comments or Examples:
    Examples: Missing information such as dimensions and model number, typos, inaccuracies, etc...

    Please include your e-mail address below if you would like us to respond to your comments or questions.             

    Join Our Email List And Receive our Monthly Promotions
    Defender Email Specials
    Click Here For Our Privacy Policy