CONTENTS xvii WWW.GOFLY.ONLINE Y ONLI NE FLI GHT SCHOOL Limitations on radio transmissions..........................................................................................................129 Use of foreign language........................................................................................................................................... 129 Obscenities, Offensive language, Non essential communications.......................................................................... 129 Chapter 14 Radio Telephony & Procedures................................................................................. 130 Principles of radio wave propagation....................................................................................................................... 130 Frequency bands for Very High Frequency (VHF) radio.......................................................................................... 130 Airband VHF (118 MHz to 137 MHz). . .................................................................................................................... 130 VHF Navigation (108 MHz to 117.95 MHz).............................................................................................................. 130 Limitations of VHF radio. ......................................................................................................................................... 130 Factors affecting VHF reception...............................................................................................................130 Line of Sight............................................................................................................................................................. 130 Range ..................................................................................................................................................................... 130 Interference ............................................................................................................................................................. 130 Frequency Congestion ............................................................................................................................................ 130 Selective Listening .................................................................................................................................................. 130 Equipment Limitations . ........................................................................................................................................... 131 Human Factors ....................................................................................................................................................... 131 Obtaining relevant VHF frequencies for an aerodrome........................................................................................... 131 Obtaining relevant VHF frequencies for flight in a nominated area......................................................................... 131 Communication coverage for a nominated area...................................................................................................... 131 Radio procedures from Aeronautical Information Publication (AIP).....................................................131 Recreational Aviation Australia (RAAus) Flight Operations Manual.....................................................131 The phonetic alphabet...............................................................................................................................132 Listening watch........................................................................................................................................................ 132 Alerted See and Avoid............................................................................................................................................. 132 Transmission of numerals........................................................................................................................................ 133 Transmission of recreational aircraft call signs........................................................................................................ 133 Circuit operations.......................................................................................................................................134 Flights to and from the training area........................................................................................................134 Flights outside of defined CTAFs.............................................................................................................135 All Stations Call........................................................................................................................................................ 135 Calling Another Aircraft in Class G Airspace ........................................................................................................... 135 Requesting Information in Class G Airspace .......................................................................................................... 135 Chapter 15 Radio Communications Equipment.......................................................................... 136 Radio Controls............................................................................................................................................136 On/Off Switches ...................................................................................................................................................... 136 Frequency Selector ................................................................................................................................................. 136 Squelch Control ...................................................................................................................................................... 136 Transmit Button ....................................................................................................................................................... 136
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