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System Operation
3-89
GNS-XL Flight Management System
Rev. 0
Oct/96
REMOTE TUNING
TUNING COMMS
This procedure enables the pilot to keyboard tune the aircraft radios
via the CDU. Some control heads may require placement in the
Remote Mode in order to accept tuning data from the CDU keyboard.
NOTE: If system is configured for 3 Comms the tune section will con-
sist of 4 pages.
1. TUNE Key - DEPRESS.
The Comm Radio TUNE
Page will be displayed.
2. Line Select Key -
DEPRESS (if neces-
sary) to position cursor
over appropriate PRE-
SET field.
3. Frequency - INSERT.
(Figure 3-142)
NOTE: Trailing zeroes are not required.
4. ENT Key - DEPRESS.
TRANSFER? will auto-
matically appear. (Figure
3-143)
5. ENT Key - DEPRESS.
The entered PRESET fre-
quency transfers to
ACTIVE. The new fre-
quency also displays as
the ACTIVE frequency on
the appropriate Comm
control head.
NOTE: Keyboard tuned frequencies may display for a few seconds
then go to dashes if the frequency read back from the radio or the
control head is not available.
NOTE: (MAN) adjacent to Active Comm frequency indicates that the
frequency has been entered using the COMM control head. No
prompts are displayed when Active Comm frequency has been key-
board entered.
COMM 1
ACTIVE (MAN) ------
PRESET 132.55
COMM 2
ACTIVE ------
PRESET 118.80
TUNE 1/3
>
>
Figure 3-142
COMM 1
ACTIVE (MAN) ------
PRESET 132.55
TRANSFER?
COMM 2
ACTIVE ------
PRESET 118.80
TUNE 1/3
>
>
Figure 3-143