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Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
680-090-2041
Version 5.0
http://www.midlandradio.com
12
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
Press and release the On/Off Volume Knob to turn
the mobile radio on. Press and hold the On/Off
Volume Knob at least two seconds to turn the mobile
radio off. Rotate the knob clockwise to increase the
speaker volume. Rotate the knob counter-clockwise
to decrease the speaker volume.
While the radio is performing power-on self-tests, it
will display the greeting message and the current
zone selection. The radio will power-on to the last
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.
Figure 4.2 – Increase volume
Figure 4.1 – On/Off
Figure 4.3 – Decrease volume
Enter 5
digit
password
Press OK
to
continue
Figure 4.4 – Power-on password entry