Operation Manual

Page 39FT-991 OperaTing Manual
convenience features
AMS
(
AutoMAtic Mode Select
)
operAtion
Setting the Operation of the AMS Function
UsingtheAMfunctionswitchesthecommunicationmodetomatchthereceivedsignalbutyoucanalternatively
select and lock the transmission mode.
Toggling to the Digital Communication Mode
WithoutusingtheAMSfunction,youcanselectandlockthedigitalcommunicationmode(DNorVW).
1. Press the
MENU(SETUP)
buttontoenterthe
Menu mode.
2. Rotatethe
MULTI
knobtoselectMenuitem“
092
AMS TX MODE
”.
3. Touch
[
SELECT
]ontheLCD,rotatethe
MULTI
knobtoselectthedesiredoperation(seethefol-
lowingtable).
MULTI Knob
MENU(SETUP) Button
4666(4'3 *\
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


1. Touch
[
AMS
] on the screen to set the AMS func-
tionto“OFF”.
2. Touching
[
DIGITAL
] on the screen switches the
digitalcommunicationmodebetweenthefollow-
ing modes.
DN (V/D Mode)
: As the audio signal error is de-
tected and repaired at the same time as the
transmission of the digital audio signal,
itbecomesmoredifficultforconversa-
tionstobecutoff.Abasicdigitalmodeof
C4FM FDMA.
4. Touch
[
ENTER
]
ontheLCDtosavethenewset-
ting.
4666(4'3 *\
56# 10
#/56:
0&$; $''2
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

5. Press the
MENU(SETUP)
buttonortouch
[
BACK
]
ontheLCDtoexittonormaloperation.
AvAilAble
SettingS
explAnAtion oF Function
AUTO TX/RX The operating mode is automatically selected from the three communication modes to match the received signal.
MANUAL TX/RX The operating mode is automatically selected from three communication modes to match the received signal.
Pressing the Microphone PTT switch momentarily, toggles between the Digital (C4FM) and Analog (FM)
communication modes.
DN RX
The RX mode is automatically selected from the three communication modes to match the received signal.
TX The TX mode is automatically changed to the “DN” mode.
VW RX
The RX mode is automatically selected from the three communication modes to match the received signal.
TX The TX mode is automatically changed to the “VW” mode.
ANALOG RX
The RX mode is automatically selected from the three communication modes to match the received signal.
TX The TX mode is automatically changed to the “FM” mode.
VW (FR Mode)
: Digital voice data is transmit-
ted using theentire12.5 kHz bandwidth.
Highqualityvoicecommunicationispos-
sible.