AUTOKEY (TRUNKED MODE ONLY)
After being placed in queue or releasing the PTT button prior to a working
channel assignment, the site calls the radio when a channel becomes avail-
able. 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 as-
signed channel.
CALL QUEUED (TRUNKED MODE ONLY)
A high-pitched tone after pressing the PTT button indicates the system has
placed the call request in the queue. The receiving unit(s) also hear the tones,
indicating they will receive a call shortly. If the PTT button is released, the
radio will autokey whenever a channel becomes available (see Autokey).
SYSTEM BUSY (TRUNKED MODE ONLY)
Three low-pitched beeps will be heard if the radio is keyed when the system
is busy, if no channels are available for sending the message, if the call
queue is full, or if an individual call is being attempted to a radio that is
transmitting. Releasing the PTT button and rekeying initiates a new channel
request.
CALL DENIED (TRUNKED MODE ONLY)
If the radio is keyed and a low pitched tone is heard then the radio is not
authorized on the system that has been selected.
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, inter-
rupting communications. Release and re-key the PTT button to maintain
communications. This will reset the carrier control timer and turn the trans-
mitter back on.
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