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BUSY CHANNEL LOCK-OUT(BCL)
This feature prevents accidental transmission on a busy channel.
This is recommended on channels where CTCSS is being used. If the channel is
“active” and the signal is coming from a non or different CTCSS code user the
BCL feature will prevent you from transmitting.
To activate BCL
Press and hold
[BCL] for 1.5 secs until “BCL”
appears on display.
To De-activate BCL
Press and hold
[BCL] for 1.5 secs. until “BCL”
disappears from the display.
SENDING CALL TONES
The UH-042XR is equipped with two types of tones
that user can use to alert other users or identify yourself prior to transmission.
You can also apply the signal at the end of the transmission.
To use the Call Tones,
Press [▲] (for call tone A) or [▼] (for call
tone B) while pressing the
[PTT] switch. Call tone
will be transmitted for 3 seconds. (You will also
hear this tone from your radio as well).
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PTT
Switch
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