NAVIGATION AND
COMMUNICATION
AIRPLANE
OPERATIONS
MANUAL
2-18-21
Page
10
Code
01
MARCH 30, 2001
− Knob functions when selecting a user programmed channel.
CHANNEL
SELECT KNOB
KNOB FUNCTION
Left outer Rotate until brings up user channel
number 1 or 40. If user channel 1 is
being displayed, the next clockwise
increment of the knob will cause
ITU channel 401 to be displayed,
then 601, 801, and on. User
channels are designated by 1-or 2-
digit channel numbers appearing at
the right side of the CHAN display
(the left two or three digits are
blanked).
Left inner (pushed in or
pulled out)
No effect on user channels.
Right outer With user channel 1 displayed,
clockwise rotation of this knob will
increment through the 40 user
channels one channel at a time.
The next increment past user
channel 40 will cause the lowest
ITU channel number (401) to be
called up. With user channel 40
displayed, counterclockwise rotation
of the right outer knob will decre-
ment through the user channels, 1
channel at a time. The next
decrement past user channel 1 will
cause the highest ITU channel
number (2510) to be called up.
Right inner (pushed in or
pulled out)
No effect on user channels.
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