Audiovox FR-1500XTM - Manual (Page 9)

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NOTE: In KEY LOCK, all buttons will be disabled except for the Up ( ) Control/
Volume Button (6), the Down ( ) Control/Volume Button (11), the Monitor (M) Button
(14) and the PTT Button (16).
Push-To-Talk (PTT) Button (16):
Pressing and holding this button will allow you to speak to any transceiver that is set to
the same channel and privacy code setting as yours. Hold the transceiver approximately
1 to 2 inches from your face as you speak into the built-in microphone (17). After you
have finished speaking, release the PTT button to allow for reception of incoming
signals. It is not possible to transmit and receive at the same time.
The transmit LED indicator (4) located above the LCD Panel (5) will light red while the
PTT button is pressed. Releasing the button allows the unit to revert to standby mode.
The PTT button can also be used as a two-way call ringer. Pressing the button twice
quickly will call another party on the same channel. The letter T (transmit) will appear in
the display and the user-selected call melody will sound.
Volume Control (6 and 11):
In the standby mode, adjust the volume to a comfortable level between 01 and 16 by
pressing the Up (6) button to increase the volume level and the Down (11) button to
decrease the volume level. Pressing the Monitor (M) button momentarily will check the
volume setting level.
Up Button (6):
In the standby mode, pressing this briefly will increase the volume. In the function edit
mode, pressing the button briefly will shift from the current option in each sub-menu to
next option in the same sub-menu.
Pressing the button for more than 1.5 seconds allows navigation at a more rapid rate.
In the standby mode the volume will increase rapidly. In the function mode, different
options can be rapidly changed.
Down Button (11):
In the standby mode, pressing this briefly will decrease the volume. In the function edit
mode, pressing the button briefly will shift from the current option in each sub-menu to
next previous option in the same sub-menu.
Pressing the button for more than 1.5 seconds allows navigation at a more rapid rate.
In the standby mode the volume will decrease rapidly. In the function mode, different
options can be rapidly changed.