Apco P25 Mode Operation - Icom IC-F9011 User Manual

■ General ■ General
APCO Project-25 (P25) is designed for public safety
digital radio, and allows you to make a call to a
specific station (Individual call) or to a particular
group (Talkgroup call or Announcement call*) in the
Conventional and Trunking mode. Other P25
transceivers on the channel will not listen in on a call
that does not match their Individual/Talkgroup/
announcement group ID or NAC (Network Access
Code).
Moreover, the following functions and calls are
available:
Pager function
Radio Inhibit
Uninhibit function Uninhibit function
Radio Monitor function
Radio Check function
Status Message,
Short Message
Status Query,
Phone Call
Emergency Call
Encryption function Encryption function.
NAC matching is not necessary for the above
functions and calls.
Each transceiver has a unique ID, and it allows it to
be substituted with an alphanumeric name, if
programmed. You can use this ID (or name) to
select a target station to call, and the ID (or name) of
th t the target station is displayed after receiving a call. t t ti i di l
*Trunking mode only
▒✔ IMPORTANT for Trunking mode operation:
▒• The public Trunking transceiver should be
▒ registered and group affiliated with the control
▒ channel in a current repeater system, to be
▒ operated in the Trunking mode.
▒ After the registration and group affiliation are
▒ successful, the Trunking operation can be
▒ performed.
▒• When the Full Off Air Call SetUp (FOACSU)
▒ function is turned ON, beeps sound after
▒ receiving an Individual call on the Trunking mode,
▒ which is a request for the user's permission to
▒ accept the call. ▒ accept the call.
4-1-7

APCO P25 Mode Operation

d ft i i ll
■ Control Channel Hunt function
(P25 Trunking mode only)
The P25 Trunking mode allows the transceiver to
automatically hunt for a control channel in a
repeater system, according to the pre-programmed
hunt list* when;
• Turning the power ON.
• The P25 Trunking mode is selected.
• The transceiver goes out of range and does not The transcei er goes o t of range and does not
receive the downlink signal from the current
registered control channel.
-"OUT OF RANGE" is displayed. (Simple and 10-key
models only)
-S-meter icon is displayed according to the received
signal strength level. (Simple and 10-key models
only)
-" " is NOT indicated.
(Simple and 10-key models only)
* The valid control channels (up to 64) are listed on
the hunt list.
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