4.2.5. Methods of signalling

4.2.5. Methods of signalling

4.2.5

  1. Flag signalling
  2. Flashing light signals using the Morse symbols
  3. Sound signalling using Morse symbols
  4. Voice over a loud hailer
  5. Radio telegraphy
  6. Radio telephony
  7. Morse signalling by hand – flags or arms
Last modified: Thursday, 21 June 2012, 7:12 AM