What is NAVTEX receiver?

What is NAVTEX receiver?

The NAVTEX receiver is a Narrow Band Direct Printing (NBDP) device operating on the frequency 518 kHz (some equipment can also operate on 490 and 4209.5 kHz), and is a vital part of the Global Maritime Distress and Safety System (GMDSS). The information received is printed on the receiver’s own paper recorder roll.

Is NAVTEX still operational?

SUMMARY: The U.S. Coast Guard may cease broadcasting Navigational Telex (NAVTEX) over Medium Frequency (MF) after first ensuring the information contained in NAVTEX broadcasts is available via International Maritime Organization (IMO) recognized satellite services.

What is NAVTEX used for?

NAVTEX (NAVigational TEleX), sometimes styled Navtex or NavTex, is an international automated medium frequency direct-printing service for delivery of navigational and meteorological warnings and forecasts, as well as urgent maritime safety information (MSI) to ships.

How do I read NAVTEX messages?

Going section-by-section, the message can be explained as follows; Line 1 – ZCZC indicates the start of a message. F indicates the geographic area and A60 indicates the ‘subject’ of the message. For example, ‘A’ classifies the message as a ‘Navigational Warning’.

What is the range of NAVTEX?

about 400 nautical miles
NAVTEX transmissions have a designed range of about 400 nautical miles.

Where is the NAVTEX area?

Contents

• 1 Stations.
• 2 Navarea 1 – North Atlantic, North Sea, Baltic Sea.
• 3 Navarea 2 – East Atlantic.
• 4 Navarea 3 – Mediterranean Sea.
• 5 Navarea 4 – West Atlantic.
• 6 Navarea 5 – Brasil.
• 7 Navarea 6 – Argentina, Uruguay.
• 8 Navarea 7 – South Africa.

Where do NAVTEX messages come from?

NAVTEX broadcasts are primary made on the international medium frequencies of 518 kHz USB using narrow-band direct printing (NBDP). The characters are encoded using the 7-bit CCIR 476 character set and basic error detection is enabled by employing forward error correction (FEC).

What is identification code of the NAVTEX?

Each Navtex station has an identification code, from “A” to “Z”. The frequency assigned to Navtex are 518 kHz and another (490 or 4209.5 kHz). Navtex broadcasts are primarily made on the Medium frequencies of 518 kHz and 490 kHz.

How many areas are there in NAVTEX?

21 NAVAREAS
Map of the 21 NAVAREAS into which all the world’s oceans are divided. Each serves to allocate responsibility for sending Marine and Safety Information (navigational warnings) to ships at sea, as part of the Global Maritime Distress and Safety System (GMDSS).

What is the transmitting range of most NAVTEX stations?

50-100 nautical miles
What is the transmitting range of most NAVTEX stations? Typically 50-100 nautical miles (90-180 km) from shore. Typically upwards of 1000 nautical miles (1800 km) during the daytime.

What is NAVTEX range?

NAVTEX transmissions have a designed range of about 400 nautical miles.

What are the NAVTEX indicator characters that Cannot be rejected by the receiver and always printed?

Some indicator characters Navigational warnings, meteorological warnings, and search and rescue information cannot be rejected by an operator. Subject indicators A, B, D and L cannot be rejected by the receiver and will always be printed.