PPRuNe Forums - View Single Post - VHF Line of sight maths explanation

28th Oct 2009, 22:45

#19 (permalink)

IO540

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Quote:

Your A/C radio has enough TX power to reach the visual horizon.

That's a curious thing to be certain of. I can go to 20,000ft or so. How many watts are required to guarantee the statement? It has to be a finite value.

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