Navtex Decoding Software for Ham Radio Operators
Find software applications for receiving and decoding Navtex marine safety information and weather reports.
NAVTEX, or Navigational Telex, is an international automated direct-printing service for broadcasting maritime navigational and meteorological warnings, as well as urgent safety information to ships. Hams often monitor these transmissions on specific longwave and mediumwave frequencies, using their receivers to pick up these important safety-at-sea messages. While primarily a marine service, the signals offer an interesting challenge for operators keen on digital modes and signal decoding.
This category provides various software tools for decoding NAVTEX signals. Operators can find PC-based NAVTEX decoders like MeteoFax32 and SeaTTY, which use a computer's sound card to process the audio from a radio receiver. There are also mobile solutions, such as DroidNavtex, allowing decoding on Android devices. Beyond NAVTEX, some programs like RadioRaft and DSCdecoder offer broader capabilities for decoding other maritime digital modes, including RTTY, CW, and DSC signals from coast stations and ships.
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DSCdecoder decodes the DSC digital signals from ships and coast stations using the sound card in your PC. You need a suitable MF, HF or VHF band radio receiver tuned to one of the DSC distress and calling channels or to one of the Navtex channels -
Weatherfax decoding software with modem -
Frisnit Navtex decoder -
RadioRaft decodes 10 different ARQ modes, 8 different FEC modes, Packet, Baudot, CW... It works with a Hamcomm interface or a radiomodem. RadioRaft offers automatic detection of modes, speeds and shift. It comes with a frequencymeter/baudmeter included, it has signal frequency tracking and a bit by bit display mode. Very easy to use. practical and fast. -
Program to receive weather reports and navigational warnings transmitted on longwave and shortwave bands in RTTY and NAVTEX modes. None additional hardware is required - your need only receiver and computer with a sound card. -
Yet Another Navtex decoder is a windows NAVTEX decoding software