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Old 11th Jan 2017, 19:05
  #23 (permalink)  
Mike Flynn
 
Join Date: Feb 2016
Location: S.E.Asia
Posts: 1,954
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Agreed.

Morse and signal squares are relics of a bygone era.

Airfield NDB's with morse idents were just an additional pilot workload.

The USA used weather and airfield info on the NDB instead of morse code.

The old ADF system was useful in its time.
Other information transmitted by an NDB[edit]
Apart from Morse Code Identity of either 400 Hz or 1020 Hz, the NDB may broadcast:

Automatic Terminal Information Service or ATIS
Automatic Weather Information Service, or AWIS, or, in an emergency i.e. Air-Ground-Air Communication failure, an Air Traffic Controller using a Press-To-Talk (PTT) function, may modulate the carrier with voice. The pilot uses their ADF receiver to hear instructions from the Tower.
Automated Weather Observation System or AWOS
Automated Surface Observation System or ASOS
Meteorological Information Broadcast or VOLMET
Transcribed Weather Broadcast or TWEB
https://en.wikipedia.org/wiki/Non-directional_beacon
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