Audiovox FR-1428 - Manual (Page 14)

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times until the Beep Tone icon ( ) appears flashing and “on” or “oF” appears.
Then press Up ( ) or Down ( ) to set the function off. Press the PTT button to
confirm your selection. When “oF” is selected, no beep tones should be heard.
To enable the key tones proceed as before, until Beep Tone icon appears flash-
ing. The “On” icon will appear. Then press Up ( ) or Down ( ) button to set the
function to on and the beep tones will be heard.
Key Lock
This feature prevents accidental change of unit settings. While enabled, Key
Lock allows only the PTT button to operate.
To enable Key Lock, press the Function (F) button for more than 2 seconds until
Key Lock icon (
) appears. To disable the Key Lock function, press the
function button for more than 2 seconds until Key Lock icon disappears.
To Transmit
1. Set the desired primary channel.
2. Press and hold the PTT (Push-to-Talk) button while speaking slowly and
clearly in a normal voice, approximately 2 to 3 inches from the microphone.
3. The transmit lightning indicator ( ) will appear while transmitting.
4. Release the PTT (Push-to-Talk) button when you finish speaking to receive
incoming signals.
To Receive.
1. Set the desired channel.
2. Adjust the volume control to the desired listening volume by using the up
and down buttons.
3. The transceiver will play strong received signals through its internal speaker
or through a headset, if so equipped.
4. The receive lightning indicator ( ) will appear while transmitting.