Syn-Tech III P25 Portable Radio
OPERATION MANUAL
680-090-2040
Version 5.0eng
http://www.midlandradio.com
13
4 OPERATION
4.1 Basic
Operation
Despite the radio’s advanced feature set, the basic receive and transmit operations can
still be quite simple. The radio is capable of distinguishing between analog and digital
signals, and the channel may be configured to receive both signal types with no user
intervention. The radio channel may also be configured to allow users to transmit
analog signals, digital signals, or choose the appropriate transmit mode.
4.1.1
Turning the Radio On and Off
Rotate the On/Off Volume Knob clockwise past
the detent to turn the radio on. Rotate the knob
further clockwise to increase the speaker
volume. Rotate the knob counter-clockwise to
decrease the speaker volume. Rotate the knob
counter-clockwise past the detent to turn the
radio off.
While the radio is performing power-on self-
tests, it will display the greeting message and
the current zone selection. If the channel switch
is in the sixteenth position, the radio will power-
on to the last selected channel. In any other
position the radio will power-on to the switch-
selected channel.
If a power-on password has been
set, the radio will prompt for
password entry when it is turned on.
Use the numeric keypad to enter the
correct password then press the left
soft key (OK). If the password is
entered incorrectly five times, the
radio will lock and must be
reprogrammed to reset the
password.
Enter 5
digit
password
Press OK
to
continue
Figure 4.3
– Power-on password entry
Figure 4.1
– On/Increase Volume
Figure 4.2
–Off/Decrease Volume
