22
DB-750X
General Setting
5.
Press the main band selector knob or
key to store value and
return to function menu. Press
key or hold selector knob for 1
second to store setup and exit.
Top
short press:
In VFO mode, short press this key; the
frequency step size changes to 1 MHz. In channel mode,
adjust selector knob to jump 10 channels.
Bottom
long press:
In standby, long press this key
to add/delete optional signaling, repeat the long press
to set optional signaling to DTMF, 5-Tone or 2-Tone.
After the above setup, to activate repeater, hold microphone PTT key and
[
DOWN
]
key and the radio will transmit selected tone.
1.
Press
key to enter function menu.
2.
Turn the main band selector knob to
choose No. 20 menu. The LCD displays
"
KEYMOd
"
3.
Press the main band selector knob to enter function setup.
4.
Switch the main band selector knob to choose desired mode.
KEY1:
Normal mode; the top four keys
have same functions as the buttom
four keys.
KEY2:
The top four keys are shared by both bands. The bottom four
keys will be re-defined.
5.
Press the main band selector knob or
key to store value and
return to function menu. Press
key or hold selector knob for 1
second to store setup and exit.
kEYpAD MoDE SETUp
LCD display of DT means DTMF; 5T means 5-Tone;
2T means 2-Tone.
Bottom band
long press:
Talk Around. When this
function is activated, transceiver does not communicate
through the repeater. The transceiver will transmit on the
repeater's output frequency with its CTCSS/DCS signaling.
Repeat the operation to turn off Talk Around.
Bottom
short press:
Frequency reverse function.
When current channel is setup with offset direction and
offset frequency, press this key to turn on frequency reverse
function. When frequency reverse function is on, the TX
frequency changes to the RX frequency and RX frequency
changes to the TX frequency. The signaling will also be
reversed if CTCSS/DCS signaling existed in this channel.
Repeat the short press to turn off frequency reverse.
Bottom
long press:
In standby, hold this key until the
LCD displays
, indicating the compander function is on.
Repeat above operation to turn off compander function.
Bottom
short press:
In standby, press this key to set
the CTCSS/DCS code for current channel.
When the LCD displays ENC, the current channel is enabled
with CTCSS encode function.
When the LCD displays ENC and DEC, the current channel is
enabled with CTCSS /DCS code function.
When the LCD displays DCS and DCS icon, the current
channel is enabled with CTCSS code function.
When the LCD displays OFF, the current channels, CTCSS /
DCS function is disabled.
Bottom
long press:
In standby, long press this key
to enter CTCSS/DCS scan. When a matching CTCSS/
DCS signal is detected, the scan will pause according to
scan dwell time. The scan direction can be changed by
7
NOTE
Configuration of keypad in KEY2 mode:
1.
2.
3.
4.
5.
6.
7.
