[Elecraft] OT: AM mode

[Nate Bargmann]

* On 2013 16 Jul 14:31 -0500, Ken G Kopp wrote:
> VHF/UHF aircraft radio has always been AM, and is likely / certain
> continue to be.  Why?  It's used world wide and discussions about
> changing it to FM have continued for years.  The conclusion seems
> to be that there is simply too much usage worldwide and little reason
> to make the change.  The cost to change to another mode would be
> horrendous!  Of course manufacturers would -love- to see the change.

>From a coworker that worked in avionics years ago one reason can be
summed up in two words--capture effect.  As AM does not have it, an air
controller can tell when two aircraft transmit at once, much like on HF
SSB for us.  Beyond that and I would be into speculation.

73, de Nate >>

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