HARRIS CORPORATION TR-0054-E Manual Do Utilizador
MM-013994-001, Rev. Ap1
134
exceeds the pre-programmed parameters is found, the radio will change to the new system and emit a tone
(if enabled through programming). If the control channel is completely lost, the radio will enter Wide
Area System scanning and search the programmed adjacent systems until a suitable control channel is
found.
(if enabled through programming). If the control channel is completely lost, the radio will enter Wide
Area System scanning and search the programmed adjacent systems until a suitable control channel is
found.
11.19 EMERGENCY
OPERATION
The radio's ability to declare an emergency, clear an emergency, remain locked on an emergency system
and group, and the emergency audio and display freeze can each be enabled or disabled through
programming. When an emergency is declared scanning will stop and restarts only after the emergency
has been cleared.
and group, and the emergency audio and display freeze can each be enabled or disabled through
programming. When an emergency is declared scanning will stop and restarts only after the emergency
has been cleared.
11.19.1 Receiving
an Emergency Call
When receiving an Emergency Call on the selected group and system, an alert beep is heard and is
displayed. The message
displayed. The message
*RXEMER*
flashes in the display on line two until the emergency condition is
cleared.
11.19.2 Declaring
an Emergency Call
Perform the following steps to send an emergency call to a selected system and group (or on an optionally
pre-programmed group).
pre-programmed group).
1. Press and hold the red EMERGENCY button that is on top of the radio in front of the antenna for
approximately one second (this time is programmable and therefore could be longer or shorter; check
with the system administrator). The radio will transmit an emergency call request with the radio ID
until an emergency channel assignment is received.
with the system administrator). The radio will transmit an emergency call request with the radio ID
until an emergency channel assignment is received.
2. When the working channel assignment is received, the radio sounds a single beep indicating the radio
has auto keyed (see Table 8-4) and is ready for voice transmission.
*TXEMER*
flashes on line two in
the display until the emergency is cleared.
3. Press PTT and speak into the microphone in a normal voice. and momentarily turn ON.
4. Release PTT when the transmission is complete.
To clear the emergency first press and hold the button. While continuing to hold the button, press the
EMERGENCY button. (This will work if the radio is programmed to clear emergencies.)
EMERGENCY button. (This will work if the radio is programmed to clear emergencies.)
11.20 INDIVIDUAL
CALLS
11.20.1 Receiving and Responding to an Individual Call
When the radio receives an individual call (a call directed only to the user's radio), it un-mutes on the
assigned working channel and displays . The first line on the display shows the logical ID number of the
unit sending the message, or the associated name if the ID number is found in the individual call list. The
radio can be programmed to ring when an individual call is received. If enabled, the ring begins five
seconds after the caller un-keys and will continue until the PTT button, the button or the individual call
mode is entered.
unit sending the message, or the associated name if the ID number is found in the individual call list. The
radio can be programmed to ring when an individual call is received. If enabled, the ring begins five
seconds after the caller un-keys and will continue until the PTT button, the button or the individual call
mode is entered.
The volume of the ring is adjustable through the volume control levels.