User's Manual

16
6
Parameter Setting Mode (SET MODE)
You can set the operating parameters and functions of DR-638 to best
suite your demands.
Press and hold
1.
key until activating the function menu.
Rotate the dial or use
2.
[UP/DOWN] keys to select the desired menu.
Press the dial to enter to the parameter setting state and rotate it or
3.
use [UP/DOWN] keys to select the desired value.
Press the dial again to go back to the menu and set next parameters,
4.
or press [PTT] or key to set the new parameter and return to
the operating mode.
MENU 01: APO (AUTOMATIC POWER OFF)
Once APO is activated, the transceiver will be automatically switched off
when the pre-set time is elapsed.
Press and hold
1.
key until activating
the function menu.Rotate the dial or use
[UP/DOWN] keys to select the menu 01
APO and press the dial.
Rotate the dial or use
2.
[UP/DOWN] keys to
select the value from 0.5 to 12 hours, or
OFF for not using this function.
Press [PTT] to set and exit or press the dial to set and continue.
3.
This menu appears only in the VFO mode.
Press and hold
1.
key until activating
the function menu.Rotate the dial or use
[UP/DOWN] keys to select the menu 03
STEP and press the dial.
Rotate the dial or use
2.
[UP/DOWN] keys
to select the value from 2.5K, 5K, 6.25K,
10K, 12.5K
Press [PTT] to set and exit or press the dial to set and continue.
3.
Press and hold
1.
key until activating the function menu. Rotate
the dial or use [UP/DOWN] keys to select
the menu 04 BAND and press the dial.
Rotate the dial or use
2.
[UP/DOWN] keys to
select the value from
ON: Turn on VFO band lockout function
This transceiver has automatic offset function. When this function is on,
the transceiver will automatically transmitting with RX frequency ± offset
frequency.
Press and hold
1.
key until activating
the function menu.Rotate the dial or use
[UP/DOWN] keys to select the menu 02 ARS and press the dial.
Rotate the dial or use
2.
[UP/DOWN] keys to select ON or OFF.
Press [PTT] to set and exit or press the dial to set and continue.
3.
MENU 02: AUTOMATIC OFFSET
MENU 03: VFO CHANNEL STEP SETTING
When the ARS is ON, the transceiver will
4.
automatically turn on offset direction, the
default offset for 144MHz range is 0.6MHz,
and 440MHz range is 5MHz.
MENU 04: VFO BAND LOCKOUT
Frequency range Offset Direction
145.200-145.495MHz LCD displays "-"
146.610-146.995MHz LCD displays "-"
147.000-147.395MHz LCD displays "+"
442.000-444.995MHz LCD displays "+"
447.000-449.995MHz LCD displays "-"