Air carrier operations ideally require uninterrupted communications between both air traffic control agencies, and company operations, and/or out-station handling agents. Much of these communications are achieved by voice, using either short range VHF, or HF for long distance communications. This situation is changing in that information is being digitized and routed over data links including satellites with print-outs available as required. The antenna map shows the typical equipment installed in a modern jet transport for communication purpose.
Obviously there are many equipment manufacturers producing communications and navigation equipment. In these lessons no attempt is made to portray any specific type, and the diagrams should be regarded as typical of the many and various models available.
thanks do check my mechanical section too http://aviamech.blogspot.com/
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