TM 1-1510-225-10
3B-147
Table 3B-81. Frequency Control,
Communication Page
(Continued)
NO.
DESCRIPTION/FUNCTION
3
Enter preset callsign or display airport
callsign.
4
Enter frequency or channel.
5
To access preset list.
6
Indicates preset number.
7
To access the V/UHF control page.
8
Recall frequency to last tuned.
The crew may also tune a V/UHF frequency
using the scratchpad of any CDU page and the
Quicktune switch, located on the pilot and copilot
control yoke. Enter any of the following into the CDU
scratchpad and press the Quicktune switch to tune the
radio:
1. A valid V/UHF frequency, channel, or net
identifier.
2. A valid callsign for a V/UHF frequency
located in the preset list. This does NOT
include airport frequency callsigns.
When the crew changes the radio frequency, the
FMS-800 saves the previous frequency. To return to
the previous frequency, press the RECALL line select
key or press the Quicktune push button with no CDU
scratchpad entry.
(b) Preset Frequency Tuning. Preset
frequencies can be entered manually on the V/UHF
preset pages, which can be stored on or loaded from a
data cartridge. The FMS-800 maintains one list of 52
presets for the V/UHF radio. To select a preset
frequency, either enter the preset number and press
line select key 4R on the Communications page,
access the V/UHF presets pages and select one of the
52 available presets, or enter the preset callsign and
press the appropriate line select key. Once the preset
is selected, the preset number is displayed in the
preset number field on the Communication page along
with the associated callsign. Figure 3B-119 and Table
3B-82 shows how to use the V/UHF presets pages.
To tune the radio to a preset callsign, enter the
callsign and press the appropriate line select key on
the Communication page. The FMS-800 will search
the preset list for that callsign and tune the radio to
that frequency, if found. If the callsign is not found,
SIGN NOT FOUND will be displayed.
