User's Guide

Table Of Contents
Identifying Radio Controls
English
14
Using the Navigation Buttons
Home Button
The H button returns you to the Home (default) screen. In most
cases, this is the current mode.
For selected radio features, the H button is also used to save
user-edited radio settings or information before returning you to
the Home screen.
Note: Some features do not require you to press
H to go to
the Home screen. Refer to the individual feature
sections in this manual for further details on saving
user-edited radio settings or information.
Data Feature Button
Use this button to access data-related features, such as the
Text Messaging Service (TMS) feature screen.
4-Way Navigation Button
Use this button to scroll up, down, left or right.
Press and release one of the button to scroll from one entry to
the next one. Press and hold one of the button to have the radio
toggles through the list automatically (release the button to
stop).
Multi Function Knob (MFK)
MFK is the on/off button of your radio. See Turning On the
Radio on page 7 for the procedure to power up and down the
radio.
In addition, there are programmable features available for MFK,
which are:
Mode Change Turn MFK to scroll the channel or zone list.
Volume Change Turn MFK to increase or decrease the
volume level of the speaker. Fast turn of MFK makes coarse
tuning of the volume level; slow turn of MFK makes fine tuning
of the volume level. The display shows the volume level and
bars to indicate the current level. The level of last selected
volume before the radio powers down remains the same when
the radio powers up.
APX_4000_M3.book Page 14 Thursday, March 13, 2014 10:59 AM