Tait TP9400 Series P25 - About the radio controls

38 Getting started
About the radio controls
The radio controls are the PTT key, power/volume
control, channel selector, 3-way selector control
(optional), scroll keys, selection keys, and function
keys. Some keys 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.
display
PTT key
(press-to-talk)
scroll keys
alphanumeric
keys
speaker /
microphone
power / volume
control
channel selector
red/green
status LED
right selection key
left selection key
function key 1
3-way selector
control (optional)
function key 2
function key 3
function key 4