30
About the radio controls
The radio controls are the PTT key, power/volume control, channel
selector, top key, function keys and keypad keys.
Some keys may have functions assigned to both short and long
key presses:
■ a short key press is less than one second, and
■ a long key press is more than one second.
The radio controls and their functions are described in the
following sections.
top key
alphanumeric keys
accessory
connector
(out-of-sight)
speaker/
microphone
status LED
power/
volume control
function key 1
PTT key
(press-to-talk)
function key 2
channel selector