Home Flying a Flexwing ——————————- All About Radio Airspace Classification ATIS – Automatic Terminal Information Service Basic Service “Blind” Radio Calls Information – transmit & receive Listen to ATC (USA only) Radio Abbreviations Radio Calls and airmanship Radio Frequencies Scottish Information Using the Radio – Letters and Numbers Using the Radio – Words and Phrases ——————————- Index Using the Radio - Letters & Numbers All Letters are transmitted using the phonetic alphabet. Frequencies are transmitted using the word "decimal" as the decimal point. i.e: microlight channel 135.475 would be transmitted as wun tree five decimal four seven five