■
Announcement function
Moreover while in the emergency mode Emergency
APCO P25 Mode Operation
■
Announcement function
Transmitting
The Announcement function allows you to send an
announcement signal to only a specific group, and
only in the Trunking mode.
The members of the target group can only receive,
and not transmit, announcements.
[Digital Button] key assignment is necessary to use
Moreover, while in the emergency mode, Emergency
calls can be transmitted with [PTT] to a Talkgroup.
If your transceiver is programmed for Silent
operation, you can transmit Emergency alarms and
Emergency calls without the beep sounding or the
LCD display lighting. [Emergency] key assignment is
necessary to transmit the Emergency alarm.
▒
NOTES:
[Digital Button] key assignment is necessary to use
the Announcement function.
1
Push [Digital Button] to enter the digital call
type selection mode.
2
Push [CH Up] or [CH Down], or rotate
[CH Up/Down] to select “ANNOUNCEMENT.”
▒
▒
When the Auto TX function is pre-set, the
▒
transceiver automatically transmits the
▒
microphone audio for the specified time
▒
period*2 after the emergency alarm
▒
transmission, even if the emergency repeat
▒
cycle is set to ‘1.’ Ask your dealer for details.
▒
- An HM-148G or HM-152 hand microphone is
▒
required for the transceivers
3
Push and hold [PTT] to transmit the
announcement signal to the target group.
• The Transmit indicator lights red.
4
Push and hold [PTT] and speak into the
microphone.
▒
required for the transceivers.
▒
When the Auto RX function is pre-set, the
▒
transceiver stands-by in the audible mode, for
▒
the specified time period*2, after the
▒
emergency alarm transmission.
*1 Depending on the emergency repeat cycle setting.
*2 Depending on the pre-set value.
microphone.
5
Release [PTT] to stop transmitting.
Receiving
1
When a matched announcement signal is
received;
• The Busy indicator lights green.
• The ringer sounds. (Depending on the pre-
Transmitting an Emergency alarm
1
Push and hold [Emergency] for the specified time
period*2 to enter the emergency mode.
• The countdown starts immediately.
2
After the specified time period*2 has passed, the
transceiver automatically transmits an Emergency
alarm once, or repeatedly, to inform the
setting.)
• “ANNOUNCEMENT” and calling station ID
(or name) are displayed for 2 sec.
(Depending on the pre-set value.)
dispatcher that the transceiver is in the emergency
condition.
• To exit the emergency mode, push and hold
[Emergency] before transmitting an
Emergency alarm.
• When the emergency repeat cycle is set to ‘1,’
the transceiver transmits an Emergency alarm,
exits the emergency mode and returns to normal
2
You can listen to the announcement.
■
Emergency transmission
The P25 emergency mode can be accessed by
pushing the [Emergency] key. An Emergency alarm
g
y
operation.
• After receiving an acknowledgement, “ACK
RECEIVED” is displayed, and depending on the
pre-set value, the transceiver exits the emergency
mode.
• When an acknowledgement is not received, “NO
ACKNOWLDG” is displayed. And depending on
the pre-set value the transceiver automatically
The calling station name (or ID)
54
is automatically transmitted once, or repeatedly*1,
to the dispatcher (Trunking mode) or Talkgroup
(Conventional mode).
the pre set value, the transceiver automatically
transmits the microphone audio (Auto TX).
3
To exit the emergency mode, turn the power
OFF.
