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Furuno SCX20 Compact Dome Satellite Compass (1.0 Heading Accuracy), NMEA2000 Certified
Furuno SCX20 Compact Dome Satellite Compass (1.0 Heading Accuracy), NMEA2000 Certified

Up to $1000 Mail-in Rebate

Brand New with Factory's Warranty
List Price: US$1,600.00
Our Price: US$1,395.00
You save US$205.00!

Availability:: Usually ships the next business day
Product Code: SCX20

Description Extended Information
Compact Dome Satellite Compass (1.0 Heading Accuracy), NMEA2000 Certified

Data TypeNMEA2000

Display TypeSupplied Separately

Power Usage12-24 VDC

Receiver TypeGPS or GLONASS or Galileo or QZSS or SBAS


  • Quad-antenna design for extreme accuracy

    Utilizing four separate GNSS Antennas for the ultimate in responsiveness, the SCX-20 set a new standard for reliable and accurate heading for all of your marine electronics. Traditionally, a Satellite Compass calculates heading using one baseline between two antennas; the SCX-20 four antennas can calculate heading information using any one of the six baselines drawn between the four antennas. The unprecedented quad-antenna design of the SCX-20 makes it capable of calculating extremely accurate heading, pitch, roll, and heave information. It is the perfect heading solution for complex vessel installations where the view of satellites may sometimes be obstructed.
  • Superior accuracy for all your sensors

    The SCX-20 enhances the performance of on-board equipment such as Radar, Fish Finders, Sonar, and Autopilots. Accurate heading information empowers your NAVpilot to keep a better course, saving time, fuel, and money on every voyage; meanwhile, precise pitch, roll, and heave information stabilizes the display for many Furuno Fish Finders and Sonars, allowing for an accurate presentation even in the roughest of seas.

    Radar Plotter 
    True echo trails are available when the SCX-20 is connected to your Furuno Radar, helping to determine own ships movement as well as the movement of other vessels. Accurate speed and heading data ensures that target trails are displayed smoothly and accurately, without the jagged, zig-zag appearance common to compasses with a higher degree of deviation.


    Fish Finder
    Even in heavy seas, accurate heave compensation from SCX-20 enables Fish Finders such as the FCV-1150 or NavNet TZtouch/TZtouch2/TZtouch3 to show you an unwavering presentation of the seabed, without the undulations caused by sea conditions.


    Accurate pitch and roll information allows Furuno Sonar systems to display a steady image on the screen, even in foul weather. 

  • Radar Echo Trail ZIG-ZAG Domination

    FURUNO SCX-20/21
    When connected to Furuno SCX-20/21, the Radars echo trails hold steady and clearly depict an accurate echo trail thanks to the SCX-20/21s amazing accuracy.

    Company A
    Company As satellite compass fails to uphold a steady heading, making echo trails virtually unintelligible.

    Company B
    Company Bs heading accuracy fluctuates by +/- 3˚ with a slower update, causing an echo trail that has a wide zig-zag pattern.

    Company C
    Company Cs heading accuracy fluctuates by +/- 5˚ with a faster update, causing an echo trail that is indistinguishable and confusing.
  • Relay Critical Data

    Effortlessly connect with existing Furuno systems in order to elevate your awareness of own vessel and the surrounding area by displaying critical information across several products including NavNet TZtouch MFDs, NAVpilot-300, FI-70, and GP-39! Initial setup can be done from NavNet series MFD, NAVpilot-300 and GP-39.

    3-Axis Speed
    Pitch, Roll, Heave
    Rate of Turn (RoT)
    Heading (HDG)

  • Perfect for NavNet TZtouch MFD, NAVpilot-300, and WASSP installations

  • Outputs accurate Time, Position, Heading, COG/SOG, ROT, Roll/Pitch/Heave 3-Axis Speed, Air Temperature and Air Pressure data

  • Unprecedented heading accuracy for Radars, Sonars, and Navigation

  • Utilizes four Multi GNSS (GPS, QZSS, GLONASS, Galileo) antennas

  • 1.0 degree heading accuracy, 0.02 knot speed accuracy

  • Lightweight antenna - only 1.0kg!

  • A comparison that says it all

    Test Conditions:
    Roll - Amplitude 20, 10 sec. period
    Pitch - Amplitude 10, 6 sec. period
    Heading - 5, 15 sec. period
    Standard - ISO22090-3 (2015)



1575.42 MHz (GPS/Galileo/QZSS/SBAS)
1602.5625 MHz (GLONASS)
Tracking code
Heading Accuracy
Heading/Roll/Pitch: 1.0 rms (static) 0.5 rms (dynamic)
Settling time
60 seconds approx.
Position Accuracy
GPS: 5m approx. (2 drms, HDOP < 4)
MSAS: 4m approx. (2 drms, HDOP < 4)
WAAS: 3m approx. (2 drms, HDOP < 4)
1 Port NMEA2000
Input: 059392/904, 060160/416/928, 061184, 065240, 126208/720, 130847
Output: 059392/904, 060928, 061184, 065280,126208/464/720/992/993/ 996/998, 127250/251/252/257/258, 129025/026/029/538/539/ 540,130310/312/314/316/577/578/816/817/818/819/822/823, 130833/834/842/843/845/846/847
25C to +55C (storage: -30C to 70C)
Power Supply
12-24 VDC: 0.2-0.1 A (4 LEN @ 9 VDC)

Equipment List


  • Cable AssemblySCX-20: FRU-NMEA-PMMFF cable (6m)
    SCX-21: FRU-CF-F cable (15m)
    SCX-20: Roof or Pole Mount
  • SCX-21: Pole Mount ONLY


  • Installation materials, spare parts
  • Interface Unit:SCX-20: FI-70
    SCX-21: GP-39


Interconnection Diagram

Note: The price is subject to change at any time without any notice. Not responsible for any typographical errors. Any products can be cancelled from sale at any time.
  • All products sold here come with Full Manufacturer's Warranty
  • Email us at
  • ask@marinedeal.com for any quesitons
  • WarningWARNING: This product can expose you to chemicals including Di-n-hexyl Phthalate, DnHP, which is known to the State of California to cause reproductive harm, and Vinyl Chloride which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov.

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