Motorola MAX638 User Manual - Page 17
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Basic Operation
Basic Operation
To Turn the radio On
Turn the radio ON/OFF VOLUME knob clockwise. The
last system that was prior to power-down will be dis-
played.
To Receive
Select the system by pressing the system
until the proper system is displayed. Select the talk-
group by pressing talkgroup
until the proper talkgroup is shown. A conventional
system will be indicated by digits only. A trunked sys-
tem will be indicated by a digit and a letter.
To Transmit On a Trunked System
When the transmit Indicator LED lights steady or after
the talk permit tones sound, press the PTT switch and
speak into the microphone in a normal voice. If you
hear tone(s) when you push the PTT switch, the sys-
tem alerts you that certain conditions exist. Refer to
the Alert Tone table for explanations.
To Transmit On a Conventional System
The yellow indicator LED will light if any other unit is
active on the channel. Do not transmit if someone else
is using the channel. When you press the PTT switch
located on your microphone, the Transmit indicator will
light steady to indicate that "you are on the air". It will
remain lit until the PTT switch is released.
12
button
Sel
or talkgroup
button