PPRuNe Forums - View Single Post - ADF ident audio frequency?

7th Nov 2009, 03:22

#9 (permalink)

Loose rivets

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Yes, I recall hearing the very first DME idents. Even to my young ears it seemed very high after the melodious 400 cps. Oh, okay, Hertz.

Take the middle C on a piano and the A above it. Your 400 Hz will be very roughly between the two.

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