NAVIGATION AND
COMMUNICATION
AIRPLANE
OPERATIONS
MANUAL
2-18-23
Page
2
Code
01
REVISION 33
SELCAL CONTROLS AND INDICATORS
1 - SELCAL BUTTON
− A striped bar illuminates inside the associated button to alert the
crew that communication is desired on VHF 2 or HF. A SELCAL
voice message sounds simultaneously.
− When pressed, after a system activation, the striped bar
extinguishes and the system is reset.
SELCAL PANEL
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