Audiovox FR540 - Manuel (Page 12)

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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 indicator ( ) will illuminate 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.
Monitor Function
The Monitor (M) button can be used to play all signals present on a
channel. This is useful when communicating with other parties at
extreme range.
The monitor function can be locked on by pressing the Monitor (M)
button for three seconds. When the monitor lock has been activated,
the LCD display will indicate BUSY. Pressing the monitor button a
second time will unlock the monitor function.