Spelling is used ia. when

1. Rate of transmission is not important in low- traffic airport
2. We want to give a chance to write the massage
3. In the radio call there are more than two names reporting points
4. ✓The callsign other than airline designator, some abbreviatons and difficult wordsCorrect answer

Explanation

Spelling using the phonetic alphabet is required for proper names, service abbreviations, and words that might be difficult to understand or subject to…

🔒 The full EASA/ICAO explanation is available in the app.

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