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Basic Operation
Performing Communication
Selecting Communication Mode
This transceiver is equipped with AMS (Automatic Mode Select) which automatically
selects between 4 modes of transmission to fit the signal being received. Because the
transmission is automatically adjusted to that of the other station, not only C4FM digital
signals, but analog signals are also recognized.
Press % to display [

DN*] on the LCD.
* (The display depends on the received signal.)
䰢䰒䰛䰢䰒䰛
䰢䰒䰛䰢䰒䰛
䰒䰙䰒䰙
Ā
䎧䎱
䰔䰕
䰔䰕
䰀䯿䯿䯺䯼䯼䯼䰀䯿䯿䯺䯼䯼䯼
䯽䰀䰁
䯽䰀䰁
ÿĀÿĀ
Example of when AMS is displayed.
To fix the transmission mode for operation, switch the transmission mode with %.
Pressing % toggles between communication modes in the order listed below.
[

DN (AMS)]  [DN (V/D mode)]  [VW (FR mode)]  [FM (analog)]
Operation mode Display Description of Modes
AMS
(Automatic Mode Select)


Transmission mode is automatically selected from 4 types
according to the signal received.
(“” part differs depending on the received signal.)
V/D Mode
(Voice/Data simultaneous
transmission mode)
DN Call is less prone to interruption due to detection and correction
of voice signals during digital voice signal transmission. This is
the standard mode for C4FM FDMA Digital
Voice FR Mode
(Voice Full Rate Mode)
VW Digital voice data transmission using the entire 12.5kHz band.
Enables high-quality voice communication.
Data FR Mode (High Speed
Data Communication Mode)
High speed data communication using entire 12.5kHz band.
This mode is automatically selected for image communication.
Analog FM Mode FM Analog communication using FM mode.
Effective when the signal is weak and audio is susceptible to
interruption in digital mode.
Cautions
z Digital communication can be performed only on the A-band.
z Digital communication cannot be performed on the B-band.
z In V/D mode (“DN” on the LCD), position information is included in the radio wave during voice
communication, however, it is not include in the Voice FR mode (“VW” on the LCD).
FT1DR_DE_Eng.indb 32FT1DR_DE_Eng.indb 32 13/06/28 15:1613/06/28 15:16
32


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