Founder, please read what question Baroda very politely asked. Your answers are of course correct for calling decision heights. But not the correct answer to his very specific question.
He's asking about the call out point, and refernce source for the 1000 foot above stable appraoch call out. This shoud be usoing the barometric altimeter, NEVER the radalt, due to possiblity of undulating terrain, steep escarpments, sea cliffs, deep ravines and canyons, non reflective surfaces or anything else I can't think of
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