PPRuNe Forums - View Single Post - LHR Atis and QNH readbacks with a/c type.

4th Jan 2010, 14:58

#23 (permalink)

Jumbo Driver

Join Date: Jun 2000

Location: UK

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The reason not all can receive it is because 121.935MHz is a 8.33kHz spaced frequency and, IIRC, carriage of 8.33kHz equipment is only mandatory in UK above FL195.

JD

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