User Manual

14221-1200-2000, Rev. A
18
6.6 ALERT TONES
The Unity mobile radio also provides audible alert tones or “beeps” to indicate the various operating
conditions. These alert tones can be enabled or disabled through programming.
Table 6-4: Alert Tones
NAME
TONE
DESCRIPTION
Call Originate
A short mid-pitched
tone.
Sounds after keying the radio (Push-To-Talk button is pressed). Indicates the radio
has been assigned a working channel.
Autokey A mid-pitched tone.
After being placed in a queue or releasing the PTT button prior to a working channel
assignment, the site calls the radio when a channel becomes available. At this
point, the radio automatically keys the transmitter (autokey) for a short period to hold
the channel. The radio sounds a mid-
pitched tone when it is clear to talk.
Immediately press the PTT button to keep the assigned channel.
Call Queued A high-pitched tone.
Sounds after pressing the PTT button indicating the system has placed the call
request in the queue. The
receiving unit(s) also sound(s) the tone to indicate they
will receive a call shortly.
System Busy
Three low-pitched
tones.
Sounds if the radio is keyed when the system is busy, if no channels are available
for sending the message, if the call queue is fu
ll, or if an individual call is being
attempted to a radio that is transmitting.
Call Denied A low-pitched tone. Indicates the radio is not authorized on the system that has been selected.
Carrier
Control Timer
Five short high-
pitched warning
tones followed by a
long low-pitched
tone.
Sounds if the programmed time for continuous transmission is exceeded. The
transmitter shuts
down shortly after the alert, interrupting communications. Release
and re-key the PTT button to maintain communications. This resets
the carrier
control timer and turns the transmitter back on.
Key Press
Alert
A short tone.
Indicates 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.
Page
(P25T Only)
Three high-pitched
tones.
In P25 trunked mode, if the receiving radio accepts a page, both the receiving and
transmitting radios emit three high-pitched tones.
Out of Range One low pitched tone.
Indicates the radio is in Wide Area Scan. The radio periodically beeps when in Wide
Area Scan.