TM 11-6605-202-12/TO 5N3-3-10-1
CONTROLS AND INDICATORS (continued)
COURSE INDICATOR 1
Fixed index
Provides reference mark for scale dial.
Rotates under fixed index reference mark to indicate aircraft
Scale dial
heading.
Annunciator
Shows dot (.) or cross ( + ) to indicate misalinement (non-
synchronization) of the compass set.
Radio pointer No. 2
Indicates bearing of No. 2 adf (automatic direction finder) or
vor (very high-frequency, omni-directional radio range) radio
signal.
Radio pointer No. 1
Indicates bearing of No. 1 adf or vor radio signal.
Synchronizing knob
Is manually rotated to null annunciator and synchronize
(electrically and mechanically aline) the compass set.
SET HDG knob
Moves the heading select cursor to desired heading.
Heading select cursor
Indicates desired heading.
Power failure indicator
Shows to indicate loss of power to compass set.
(not shown)
ADF/VOR knob
Selects adf or vor signal for radio pointers No. 1 and No. 2.
3-3
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