COMMUNICATIONS, VHF COM
Operation
Aircraft Operations Manual
4/3.2
C
PAGE
1
Jun 01/18
COLLINS PRO LINE II
1.
LIMITATIONS
Not applicable.
2.
NORMAL OPERATION
CONDITIONS
NORMAL PROCEDURES
2.1
POWER UP
1.
ESS, L and R AVION switches
ON
. . . . . . . . . . . . . . . . . . .
−
The VHF COM systems are switched ON/OFF by ESS (COM 1) and R AVI-
ON (COM 2) switches.
2.2
VHF COM SYS-
TEM TEST
1.
TEST button (COM control unit)
PRESS AND
. . . . . . . . . . . . . . . . . .
HOLD.
−
Control unit enters and displays Diagnostic Fail Code
−
Two tones will be heard.
2.
TEST button
RELEASE.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3
PROGRAM-
MING OF THE
FREQUENCY
MEMORY
The Control unit contains six programmable memorycells.
1.
XFR/MEM switch
MEM PRESS.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
−
Momentarily press switch to select memorycell to be programmed.
2.
STO button
PRESS.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
−
Momentarily press STO to enter program mode.
3.
Frequency selector
SET FREQUENCY.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
−
Set frequency in memorycell.
4.
STO button
PRESS.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
−
Momentarily press STO to enter program frequency.
−
Control unit will also return to normal.
5.
To set up next memory frequency, proceed with item 1 above.
No activity for 3 seconds will return Control unit to normal display.