CATROS

A radiobeacon is a radio transmitter which emits a distinctive or characteristic signal on which a bearing may be taken (IHO Dictionary, S-32, 5th Edition, 4168).

1. circular (non-directional) marine or aero- marine radiobeacon: a radio station which need not necessarily be manned, the emissions of which, radiated around the horizon, enable its bearing to be determined by means of the radio direction finder of a ship. (IHO Dictionary, S-32, 5th Edition, 802)
2. directional radiobeacon: a special type of radiobeacon station the emissions of which are intended to provide a definite track for guidance. (IHO Dictionary, S-32, 5th Edition, 1378)
3. rotating pattern radiobeacon: a special type of radiobeacon station emitting a beam of waves to which a uniform turning movement is given, the bearing of the station being determined by means of an ordinary listening receiver and a stop watch. Also referred to as a rotating loop radiobeacon. (IHO Dictionary, S-32, 5th Edition, 4444)
4. Consol beacon: a type of long range position fixing beacon.
5. radio direction-finding station:
6. a radio station intended to determine only the direction of other stations by means of transmission from the latter. (IHO Dictionary, S-32, 5th Edition, 4174)
7. coast radio station providing QTG service: a radio station which is prepared to provide QTG service, that is to say, to transmit upon request from a ship, a radio signal, the bearing of which can be taken by that ship. (IHO Dictionary, S-32, 5th Edition, 4108)
8. aeronautical radiobeacon: a radio beacon designed for aeronautical use.
9. Decca: the Decca Navigator System is a high accuracy, short to medium range radio navigational aid intended for coastal and landfall navigation. (Admiralty List of Radio Signals, UK Hydrographic Office, Volume 2, 1994)
10. Loran C: Loran-C is a low frequency electronic position fixing system using pulsed transmissions at 100 Khz. (Admiralty List of Radio Signals, UK Hydrographic Office, Volume 2, 1994)
11. Differential GPS: a radiobeacon transmitting DGPS correction signals.
12. Toran: Toran is an electronic position fixing system used mainly by aircraft.
13. Omega: Omega is a long- range radio navigational aid which operates within the VLF frequency band. The system comprises eight land based stations. (Admiralty List of Radio Signals, UK Hydrographic Office, Volume 2, 1994)
14. Syledis: Syledis is a ranging position fixing system operating at 420-450MHz over a range of up to 400Km.
15. Chiaka (Chayka): Chiaka is a low frequency electronic position fixing system using pulsed transmissions at 100 Khz. (Admiralty List of Radio Signals, UK Hydrographic Office, Volume 2, 1995)