Originally Posted by
gw3xjc
i am one of the few that use morse on a regular basis.
Well, thousands of pilots use morse every day.
You want to make sure that the signals you are flying on are really coming from the beacon or approach facility that you think you are using.
So each NDB VOR and ILS has its own code transmitted. If you tune in LHR VOR you'll hear .-.. .... .-.
BTW Newer generation aircraft (747-400 and later) have some kind of built-in decoder so you actually don't have to listen to the ident but it's just on your displays.
Regards