Crystal DBH034PK, User Manual, Page: 8 / 18

Transmitting (sending speech)
The unit is continuously in the Receive mode when the unit is turned ON and not
transmitting. When a signal is received on the current channel, “RX” ic on will be displayed
on the LCD screen. a. Press and hold the
(PTT) button (Push to Talk) button to transmit
your voice. The transmit signal icon “TX” will display on the LCD screen. b. Hold the unit
in a vertical position with the Mic (Microphone) 5 cm away from the mouth. While holding
the
(PTT) button , speak into the microphone in a normal tone of voice. c. Release the
(PTT) button when you have finished transmitting.
For others to receive your transmission, they must be on the same channel as you.
Squelch control
The DBH034PK has automatic squelch control, which silences the constant background
noise during periods of inactivity. The radio will still receive transmissions when a signal is
present, however it will eliminate background noise when a signal is not present.
To open the squelch (turn off automatic squelch control), press and hold down the
“(UP)
button” , RX receive symbol will appear on the display and a constant static noise can be
heard. The radio is now allowing all signals to be heard.
Low Battery Meter Indicator
The radio can detect the low battery level when the battery voltage goes low. The battery
icon will display the low battery status. When battery voltage is low, the empty battery
symbol will appear and continue to blink. The battery symbol will continuously blink until it
totally drains the battery voltage where then you will have to recharge or replace the
batteries.
MAIN MENU
To access the main menu, while the radio is powered on, press the
“(MENU) button.” To
navigate through each menu option, press the “(MENU) button” multiple times until the
desired feature is reached. Use the “UP/Down button” to make changes.
Menu options include:
1. Channel selection
2. CTCSS code settings
3. Voice operated exchange
4. Call tone
5. Key tone
6. Roger beep
7. Repeat
NOTE: Duplex Mode also known as Repeater is only available/displayed on selected
channels
(1-8 and 41-48). It will not display on the menu as an option when the radio is on another
channel
To exit the menu press the
“(PTT) button” and the default channel screen will reappear,