Page 26 - Radio BEG-engelsk- engelsk tekst
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© Henning Bach Andersen
So maybe you can work out how many “phone numbers” are in the air?
If you got 2280, you have been good at calculating it. It will be a thin phone book
– 2280 numbers can be on 3 pages!
Therefore, more numbers are needed. Therefore, some are “reused”. In order
to be able to reuse / use the same frequency for another station, there must be
a reasonably large geographical distance between the 2 stations with the same
frequency.
The range depends on the flight altitude and can easily reach 100 NM.
3.3.1 Frequency protection
To avoid disturbing other radio stations, a concept called frequency protection
has been introduced.
Frequency protection is indicated in brackets after the frequency, e.g. (150/50
NM).
This means that you must be within a radius of 50 NM from the radio station and
below flight level 150 before you are allowed to make a call on the frequency.
BEG-english radio marts 2026 - Midtjysk Flyveskole 26
