1. PRINCIPLE OF NAVTEX SYSTEM

NAV

Country

Station

Latitude

Longitude

Freq.

Area

Station

Broadcast schedule (UTC)

area

(kHz)

(nm)

ID

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IX

Saudi Arabia

Jeddah

21 23 N

39 10 E

518

390

H

0705, 1305, 1905

 

 

 

 

 

 

 

 

 

 

Oman

Muscat

23 36 N

58 30 E

518

270

M

0200, 0600, 1000, 1400, 1800, 2200

 

 

 

 

 

 

 

 

 

 

Pakistan

Karachi

24 51 N

67 03 E

518

400

P

0230, 0630, 1030, 1430, 1830, 2230

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X

 

 

 

 

NIL

 

 

 

 

 

 

 

 

 

 

 

 

XI

China

Sanya

18 14 N

109 30 E

518

250

M

0200, 0600, 1000, 1400, 2200

 

 

 

 

 

 

 

 

 

 

 

Guangzhou

23 08 N

113 32 E

518

250

N

0210, 0610, 1010, 1410, 2210

 

 

 

 

 

 

 

 

 

 

 

Fuzhou

26 01 N

119 18 E

518

250

O

0220, 0620, 1020, 1420, 2220

 

 

 

 

 

 

 

 

 

 

 

Shanghai

31 08 N

121 33 E

518

250

Q

0240, 0640, 1040, 1440, 2240

 

 

 

 

 

 

 

 

 

 

 

Dalian

38 52 N

121 31 E

518

250

R

0250, 0650, 1050, 1450, 2250

 

 

 

 

 

 

 

 

 

 

Indonesia

Jayapura

02 31 S

140 43 E

518

300

A

0000, 0400, 0800, 1200, 1600, 2000

 

 

 

 

 

 

 

 

 

 

 

Ambon

03 42 S

128 12 E

518

300

B

0010, 0410, 0810, 1210, 1610, 2010

 

 

 

 

 

 

 

 

 

 

 

Makassar

05 06 S

119 26 E

518

300

D

0030, 0430, 0830, 1230, 1830, 2030

 

 

 

 

 

 

 

 

 

 

 

Jakarta

06 06 S

106 54 E

518

300

E

0040, 0440, 0840, 1240, 1640, 2040

 

 

 

 

 

 

 

 

 

 

Japan

Otaru

43 19 N

140 27 E

518

400

J

0130, 0530, 0930, 1330, 1730, 2130

 

 

 

 

 

 

 

 

 

 

 

Kushiro

42 57 N

144 36 E

518

400

K

0140, 0540, 0940, 1340, 1740, 2140

 

 

 

 

 

 

 

 

 

 

 

Yokohama

35 14 N

139 55 E

518

400

I

0120, 0520, 0920, 1320, 1720, 2120

 

 

 

 

 

 

 

 

 

 

 

Moji

34 01 N

130 56 E

518

400

H

0110, 0510, 0910, 1310, 1710, 2110

 

 

 

 

 

 

 

 

 

 

 

Naha

26 05 N

127 40 E

518

400

G

0100, 0500, 0900, 1300, 1700, 2100

 

 

 

 

 

 

 

 

 

 

Korea,

Chukpyong

37 03 N

129 26 E

518

200

V

0330, 0730, 1130, 1530, 1930, 2330

 

Republic of

490

200

J

0130, 0530, 0930, 1330, 1730, 2130

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pyongsan

35 36 N

126 29 E

518

200

W

0340, 0740, 1340, 1540, 1940, 2340

 

 

 

 

 

 

 

 

490

200

K

0140, 0540, 0940, 1340, 1740, 2140

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Malaysia

Penang

05 26 N

100 24 E

518

350

U

0320, 0720, 1120, 1520, 1920, 2320

 

 

 

 

 

 

 

 

 

 

 

Miri

04 28 N

114 01 E

518

350

T

0310, 0710, 1110, 1510, 1910, 2310

 

 

 

 

 

 

 

 

 

 

 

Sandakan

05 54 N

118 00 E

518

350

S

0300, 0700, 1100, 1500, 1900, 2300

 

 

 

 

 

 

 

 

0020-0030, 0420-0430, 0820-0830,

 

Singapore

Singapore

01 25 N

103 52 E

518

400

C

 

1220-1230, 1620-1630, 2020-2030

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Thailand

Bangkok Radio

13 43 N

100 34 E

518

200

F

0050, 0450, 0850, 1250

 

 

 

 

 

 

 

 

 

 

United States

Guam

13 29 N

144 50 E

518

100

V

0100, 0500, 0900, 1300, 1700, 2100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Continued on next page)

1-7

Page 19
Image 19
Furuno NX-700A manual Latitude Longitude Freq Area Station Broadcast schedule UTC

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.