Dual Watch; Emergency Alarm; Channel/Frequency Scan; Channel Scan Skip - Alinco DR-638 Instruction Manual

Vhf/uhf fm mobile transceiver
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5
Basic Operations

DUAL WATCH

In standby, Press
and while
press
key to enter Dual Watch mode. The radio will scan the
channel in every 5 seconds. When the radio receives matching signal, it
pause scanning until the signaling disappear. Repeat above operation to
exit Dual watch.

EMERGENCY ALARM

To start emergency alarm, press and hold
-ceiver displays ALARM and emit alarm. Re-power on the transceiver to
exit alarm. This transceiver has 4 kind of alarm which can be setup by
programming software.

CHANNEL/FREQUENCY SCAN

F RE Q UENCY SCAN
14
In VFO mode, press the
During the scanning, turn the dial or press [UP/DOWN] keys to change
the scanning direction. Press [PTT] or keys other than [UP/DOWN] to
stop scanning.
C H ANN EL SCAN
In Memory mode, press the
During the scanning, turn the dial or press [UP/DOWN] keys to change
the scanning direction. Press [PTT] or keys other than [UP/DOWN] to
stop scanning.

CHANNEL SCAN SkIP

In Memory mode, turn the dial to choose the
channel to skip during scanning. Press
and while
icon is displayed on the screen,
icon is displayed on the screen,
key until the trans
or
key to start scanning.
or
key to start scanning.
press
key. A beep sounds twice and the channel is set as the skip
channel and "P2" icon. Repeat it to cancel the setting, a beep is heard
once and "P2" icon dissapears.

MEMORY CHANNEL PROGRAMMING

11
In VFO mode, select the desired frequency by using the dial or
numerical keys.
21
Press
key to display
display.
31
Rotate the dial or press
memory channel number.
41
While displaying the
and a number, press
appears on the display. While it's displayed, press and hold the
key again until a beep is heard and MEN-IN dissapears. The memory
channel is set. If
icon dissapears during operation, simply press
the
key again to resume.

SEARCH SCAN RANGE SETTING

Five different search scan ranges are programmable.
Set a pair of upper and lower limit frequencies in each L1/U1- L5/
U5 memory channels to activate the function. L stands for the lower
and U stands for the upper limit. The upper
limit must exceed the lower limit frequency.
Please refer above "MEMORY CHANNEL
PROGRAMMING" section for how to memory frequencies.

CHANNEL COPY

11
In memory mode, select the desired channel by using the dial or
numerical keys.
and a memory channel number on the
[UP/DOWN] keys to select a desired
key. MEN-IN

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