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Old 03-03-2013, 05:58 AM
  #3  
PerfInit
Gets Weekends Off
 
Joined APC: Oct 2008
Position: JAFO- First Observer
Posts: 997
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BH,

It is interesting (and sad) that aviation communications have not left the 19th century (a little humor). The aviation communications VHF radio spectrum (118-135.975 Mhz) operates using Amplitude Modulation (AM) mode. Other than Citizen's Band (CB) (26-27 Mhz), and some Amateur Radio (ham) hobbyists, AM is a mode that is hardly ever used anymore for communication.

It works, but is "archaic". Businesses and Public Safety Agencies have all swithched to FM and Digital Spread Specktrum (trunking) which is much more secure.

AM is very succeptible to interference. New and better technology has been available for quite some time (20+ years). Why the aviation industry continues to "ancestor worship" is beyond me.

Good luck with that mission! It will keep you busy....

Blue skies and tailwinds!
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