Navigation and Seamanship

6.6.2. Types of Radio beacons

1. AERO RADIO BEACON- mainly used by aircrafts and occasionally by ships. Operates continousely.

2. RADIO RANGE- unidirectional aero radio beacon whose transmissions only through definite air routes.

3. MARKER RADIO BEACON- operates continuously for short range ( less than 10 nm) to mark a specific place.

4. CALIBRATION STATION- transmission for calibration of ships D/F receivers is known as a Calibration station. available on request from one hour after sunrise to one hour before sunrise

5. DIRECTION FINDING STATION- wireless station mainly operated for taking radio bearings from vessels.

6. OCEAN WEATHER SHIPS- weather conditions in the North Atlantic and North Pacific Oceans, these ships are equipped with radio beacons In emergencies, these ships also provide D/F and Radar bearings.

7. BEACONS FOR DISTANCE FINDING- beacons emit synchronized sound and radio signals for distance finding.

8. FOG SERVICE BEACON- radio beacons operates only during fog times where the visibility severely affected.