john smith wrote:
DME is slant range, ATC may be horizontal. How high were you?
I was at 2000 feet, which is about 1700 AGL.
Certainly not enough to give you an extra mile of slant range.
You have a digital readout that gives exact distance. The controller
looks at the little space between you and the VOR symbol on the radar
scope. That symbol, a circle, is about a mile in diameter. The
controller looks at that space and he came up with 3 miles. He was
off a mile. No big deal.
Another factor is the physical location of the DME site with respect to
the airport reference point.
How is that a factor?
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