Originally Posted by
Squawk7700
The frequency changing “gizmo” was developed back when it was clear what a CTAF was, back in the days of MBZ’s.
That would explain it. Alas, MBZs haven’t been around for quite some time. Wouldn’t be surprising if they came back, though.
(And, with respect, it’s always been clear what a CTAF is and was. It’s just a frequency. What’s been unclear since the abolition of defined zones around aerodromes in G (other than the odd BA and AFIZ) is at what point laterally
and vertically from an aerodrome in G must the CTAF be used.)
So: What is the “height above the aerodrome that could result in conflict with operations at the aerodrome”? Isn’t it axiomatic that if we all have different answers to that question, there’s a ‘safety’ issue? I was hoping that Vag would enlighten us.