User's Guide

U3 USER GUIDE
17
4. PTT button: To use the current channel to PTT call.
The U3 radio supports both analog and digital mode,
if the current channel is programmed as a digital mode,
Uni2TDMA, the home display will indicate this: .
On the top line of display is status bar, this bar indicates you the state of radio.
Icon
Description
Indicate the signal strength.
Indicate the current time.
Indicate you have a unread message.
Indicate the Bluetooth function is enabled.
Indicate the radio is programmed as digital mode.
Indicate the radio is connected with one accessory such as
Programming Cable or External Speaker Microphone.
Indicate GPS function is activated.
Indicate U3’s battery gauge.
On last two line of the display is second status bar. This bar also indicates you the
state of radio.
Icon
Description
Indicate alarm clock is activated.
Indicate the current date.