1946C - Marine radar FURUNO - Free user manual and instructions
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| Product Type | Marine Radar |
| Brand | Furuno |
| Model | 1946C |
| Display Size | 7 inches (diagonal) |
| Display Type | Color LCD |
| Transmitter Power | 4 kW (nominal) |
| Maximum Range | 36 nautical miles |
| Dimensions (W x H x D) | 11.5 x 8.5 x 4.5 inches |
| Weight | 8.5 lbs (3.9 kg) |
| Power Supply | 10.2–31.2 VDC (12/24 V) |
| Power Consumption | 36 W (typical) |
| Functions | Radar overlay, MARPA target tracking, waypoint navigation, echo trail |
| Antenna Type | Dome antenna (24 rpm) |
| Radar Frequency | X-band (9.4 GHz) |
| Maintenance | Clean display with soft cloth; inspect antenna cable connections annually |
| Safety | Never operate near flammable materials; ensure proper mounting |
| Spare Parts | Antenna, display unit, power cable, mounting bracket available |
| Repairability | Serviceable by authorized Furuno technicians |
| General Information | Part of Furuno NavNet series; user manual available in PDF (239 pages) |
Frequently Asked Questions - 1946C FURUNO
How do I install the Furuno 1946C radar?
Installation requires mounting the display unit and dome antenna. Consult the user manual for detailed steps and ensure proper cable routing. Power off before installation.
What is the maximum range of the 1946C radar?
The Furuno 1946C can detect targets up to 36 nautical miles, depending on target size, sea state, and antenna height.
Can I use the 1946C radar for chart plotting?
Yes, the 1946C integrates radar overlay on charts and supports waypoint navigation, but it is primarily a radar display. For full chartplotter functions, consider a networked GPS/plotter.
How do I clean the radar display?
Use a soft, lint-free cloth slightly dampened with water or a mild screen cleaner. Avoid abrasive cleaners that may damage the anti-reflection coating.
What power supply does the 1946C require?
The unit operates on 10.2–31.2 VDC (compatible with 12V or 24V systems). Check the manual for proper fuse rating.
How do I perform MARPA target tracking?
MARPA (Mini Automatic Radar Plotting Aid) is activated via the menu. Select a target on the radar screen and enable tracking. The system will display course, speed, and closest point of approach.
What should I do if the radar does not power on?
First, check the power cable connections and verify voltage at the unit. Ensure the circuit breaker is on. If still off, contact Furuno support.
Is the antenna cable included?
Yes, a standard 15-meter antenna cable is typically supplied. Longer cables may be ordered separately.
How often should I service the radar?
Annual inspection of antenna bearings, cable integrity, and display connections is recommended. Refer to the maintenance schedule in the manual.
Can I view the manual in other languages?
The official manual is in English, but Furuno offers translated versions upon request. You can also use the AI translation feature on the manual page.
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