User Manual

14221-1200-2000, Rev. A
13
6 OPERATION
6.1 TURN THE RADIO ON
Rotate the POWER ON-OFF/VOLUME knob clockwise, out of detent to turn the radio on. A short
beep (if enabled through programming) indicates the radio is ready for operation. The display indicates, if
programmed, the last selected system name on line 1 and the last selected group or channel name on line
two.
6.2 CH-721 FRONT PANEL COMPONENTS
The front panel of the control head includes a dot matrix display, controls for menu navigation, an
emergency button, three pre-set buttons, a Power On-Off/Volume Control knob, and a microphone
connector. In addition, the system model control head features a DTMF keypad.
Table 6-1 lists all default front panel controls and their functions. All functions and controls of the Scan
radio operate the same as the corresponding functions and controls on the System radio.
Figure 6-1: System Model
Figure 6-2: Scan Model
NOTE
Button function may vary depending upon system programming, radio hardware, and
optional configurations. Complete the table in Section 9 if the keys have been remapped
to provide new functions.