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Being 'On the Air'

May 26th Fact-of-the-Day

Amateur Radio operators often talk about being 'On the Air' or having been 'On the Air.' Broadcast radio announcers often say they are 'On the Air.' The media and members of the public often refer to radio and television programs that recently 'Aired.' Of course, radio and television signals are sent via waves of electromagnetic radiation which have nothing to do with air. They do not ride on air. They could be sent without air. Otherwise, it would not be possible to receive television signals from earth satellites or to communicate via radio with space research vehicles sent far outside earth's air atmosphere. Next time you go for an airplane or hot air balloon ride you will be 'On Air.' Next them you talk via radio with your feet firmly on earth, you will not be 'On Air,' unless, of course, your backside is supported by an air mattress. ©2005 Martek International All rights reserved.


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