Ericsson LZT-1872R1A manual Alert Tones, Standard Tones

system.

ALERT TONES

The radio generates a number of alert tones to indicate various events. The following section describes the alert tones.

STANDARD TONES

Power-UP	If programmed, a tone will sound on
	power-up after the radio passes the
	self test.
Low Battery	A low pitch tone will sound every 130
	seconds when the battery is low and
	needs charging.
Carrier Control	The Carrier Control Timer (CCT)
Timer	alert is a pulsed tone signal that
	sounds whenever the PTT button is
	continuously pressed for a pre-
	programmed length of time. After
	nine seconds of pulsing the
	transmitter	shuts	down	and
	communications is interrupted.			To
	maintain communications, release
	and re-key	the PTT	switch.	This

resets the timer and turns the transmitter back on. The CCT is a built-in precaution against in- advertent use of the system.

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