Navigation and Seamanship

6.6.2.2. Function of Direction Finder

The Direction Finder performs two functions

1. Establish a line of position (LOP) along which the transmitting station and a vessel lie.

2. Determine the direction in which the transmitting station lies

Identification of radio Beacons

The technical details of the beacons positioned along the coasts are given in Admiralty List of Radio Signals and in List of Radio determination and Special Service Stations. The particulars such as frequency of transmission, time of operation (if applicable), range (or power output), position, duration of service, period of transmission etc,.