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CARRIER CONTROL TIMER
If the programmed time for continuous transmission is exceeded, five short
high-pitched warning tones followed by a long low-pitched tone will be heard.
The transmitter will shut down shortly after hearing the alert, interrupting
communications. Release and re-key the PTT button to maintain
communications. This will reset the carrier control timer and turn the
transmitter back on.
KEY PRESS ALERT
A short tone or "beep" sounds to indicate a key has been pressed. A short low-
pitched tone indicates no action was taken because the key is not active in the
current mode.
DUAL CONTROL SWITCHING
When control is switched to a previously idle control unit, two short high-
pitched tones will sound at the control unit where PTT was pressed, that is
now the active controller.
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