User's Manual

10
5. Radio operation
The definition of the various buttons of the TPD-8424 series is the same as Figure 5-1).
Figure 5-1) TPD-8424 Series button definition
5.1 Power ON/OFF Button
When the power ON / OFF button pressed for more than 3 seconds, start-up sound occurs with
company logo and the radio turns ON. Push again power ON/OFF button while the radio power is
ON, the power is OFF with "Good bye" sound.
5.2 PTT Button
Pressing PTT button, the radio mode is transmission and releasing the button, it is receiving mode.
It is recommended to talk 5~10cm away from the microphone for the best voice communication.
5.3 ZONE Button (Program settings)
When you press the ZONE button, the registered ZONE which registered by program is changed to
a step-by-step and can be select your request channel use by UP / DOWN buttons.
5.4 MENU/ENTER Button
When you press the NENU / ENTER button, currently programmed menu is displayed and you can
select a desired menu using by VOLUME + / LEFT button or VOLUME- / RIGHT button.