Originally Posted by
Crash one
Could someone please explain what on earth use this would be to anyone with a light single strapped to their arse? Shirley if you can't get someone, call someone else?
Must be an age thing.
It is of course totally irrelevant to someone flying at low altitude with no VOR (and probably no other ground based radio nav aids). Not everyone who straps a single to their backside operates in the same way. It is useful for predicting when you have the potential to hear a ground station (which given the much higher power output and good antenna setup tend to achieve their theoretical transmit distance). This can be useful when you are on a long transit and have been relaying via overhead CAT, and as others have said, when you should expect VOR or other VHF signal reception as you come back into range of civilisation.