4. INSTALLATION

4.7Digital Interfacing

This equipment can receive navigation data in IEC 61162-1 Ed2/2 format.

Priority

 

TIMEDATE

ZDA

L/L

GNS > GGA > RMC > GLL

SOG

VTG > VBW > RMC

STW

VHW > VBW

COG

VTG > RMC

Input data sentence description

GGA: GPS position fixing condition

$--GGA,hhmmss.ss,llll.lll,a,yyyyy.yyy,a,x,xx,x.x,x.x,M,x.x,M,x.x,xxxx*hh<CR><LF>

+-- 11

+----

10

+---------

9

+---

+------------

8

+---+

------------------

 

7

+

-------------------------

 

 

6

 

+

----------------------------

 

 

 

5

 

+

-------------------------------

 

 

 

 

4

 

+----

+

---------------------------------

 

 

 

 

 

3

 

+---

+---------------------------------------------

 

 

 

 

 

 

 

2

 

 

+

-------------------------------------------------------------

 

 

 

 

 

 

 

 

1

 

 

1.UTC of position

2.Latitude, N/S

3.Longitude, E/W

4.GPS quality indicator (see note)

5.Number of satellite in use,00-12, may be different from the number in view

6.Horizontal dilution of precision

7.Antenna altitude above/below mean sealevel, m

8.Geoidal separation, m

9.Age of differential GPS data

10.Differential reference station ID, 0000-1023

11.Checksum

NOTE

0 = fix not available or invalid

1 = GPS SPS mode, fix valid

2 = differential GPS, SPS mode, fix valid

3 = GPS PPS mode, fix valid

4 = Real Time Kinetic. Satellite system used in RTK mode with fixed integers 5 = Float RTK. Satellite system used in RTK mode with floating fingers

6 = Estimated (dead reckoning) mode

7 = Manual input mode

8 = Simulator mode

The GPS quality indicator shall not be a null field.

4-11

Page 57
Image 57
Furuno NX-700A manual Digital Interfacing, Priority

NX-700A specifications

The Furuno NX-700A is an advanced navigation system designed specifically for professional mariners and commercial vessels. Known for its robust performance and precision, it integrates state-of-the-art technology to enhance safety and efficiency at sea. One of the most notable features of the NX-700A is its dual-channel frequency system, which allows for improved target detection and tracking capabilities. This dual-channel operation ensures that the system can differentiate between multiple targets, reducing the risk of collisions and enhancing situational awareness.

Another significant aspect of the NX-700A is its high-resolution display. The system is equipped with a large LCD screen that provides clear and detailed graphical representations of surrounding waters, including navigational aids and potential hazards. The intuitive interface allows for easy operation even in challenging conditions, ensuring that crews can concentrate on their primary task: safe navigation.

Further enhancing the usability of the NX-700A is its advanced GPS functionality. The system employs multi-GNSS (Global Navigation Satellite System) technology, enabling it to obtain accurate position fixes from various satellite constellations, including GPS, GLONASS, and BeiDou. This capability ensures that mariners receive reliable positioning data regardless of their location, which is crucial during navigation in remote areas.

The NX-700A also features robust connectivity options, including NMEA 2000 and NMEA 0183 support. This allows the system to interface seamlessly with other onboard equipment, such as autopilots, engine monitoring systems, and electronic chart plotters. Such integration enhances operational efficiency and aids in maintaining a central command point for navigation.

Marine safety is further bolstered with the NX-700A's built-in man-overboard function, which provides rapid and precise positioning information in emergency situations. The system can also store critical navigational data, which can be accessed quickly during emergencies, contributing to enhanced safety protocols on board.

In summary, the Furuno NX-700A is a sophisticated navigation solution that combines high-resolution displays, advanced GPS technology, dual-channel frequency systems, and robust connectivity. Whether used in fishing vessels, cargo ships, or pleasure yachts, the NX-700A stands out as a reliable tool for enhancing maritime safety and navigation efficiency. With its user-friendly interface and essential features, it embodies the modern requirements of marine navigation technology.