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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
11
key until activating the function menu.
Rotate the dial or use
21
[UP/DOWN]
keys to select the desired menu.
Press the dial to enter to the parameter setting state and rotate it or
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use
[UP/DOWN]
keys to select the desired value.
Press the dial again to go back to the menu and set next parameters,
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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
11
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
21
[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.
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This menu appears only in the VFO mode.
Press and hold
11
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
21
[UP/DOWN]
keys
to select the value from 2.5K, 5K, 6.25K,
10K, 12.5K, 15K, 20K, 25K, 30K and 50KHz.
Press [PTT] to set and exit or press the dial to set and continue.
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Press and hold
11
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
21
[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
11
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
21
[UP/DOWN]
keys to select ON or OFF.
Press [PTT] to set and exit or press the dial to set and continue.
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MENU 02: AUTOMATIC OFFSET
MENU 03: VFO CHANNEL STEP SETTING
When the ARS is ON, the transceiver will
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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 "-"