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Emergency and Special Call are not operational during conventional failsoft. In addition,
the g control will not operate.
12.4 EMERGENCY OPERATION
The radio's ability to declare an emergency, clear an emergency, remain locked on an emergency 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 will restart only after the emergency has been
cleared.
12.4.1 Receiving an Emergency Call
When receiving an emergency call from the selected group and system, an alert beep is heard and
the BSY indicator lights. The message *RXEMER* flashes in the display on line 2 until the
emergency condition is cleared. Follow standard emergency procedures.
12.4.2 Declaring an Emergency
To send an emergency call to the selected system and group (or on an optionally pre-programmed
emergency group), proceed as follows:
1. Press and hold the red E or “
E” emergency button 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.
2. When the working channel assignment is received, the radio sounds a single beep (Autokey
alert tone) indicating it is ready for voice transmission. *TXEMER* flashes on line 2 in the
display until the emergency is cleared.
3. Press PTT and speak into the microphone in a normal voice.
4. Release PTT when the transmission is complete and listen for a reply.
5. The emergency can be cleared by pressing and holding the c button followed by pressing
the E or “
E” emergency button then releasing both buttons.
12.5 SYSTEM SCAN OPERATION
The radio can be programmed with the following System Scan features. These features are automatically
enabled upon radio power up. A key or menu option is also defined to allow the System Scan features to be
toggled during radio operation. This is covered in the Menu Selection and Pre-Programmed Keypad Key
sections. The System Scan state will be maintained through system changes but will default to ON at power
up.
12.5.1 Wide Area System Scan
The M7100
IP
Series mobile radio can be programmed for wide area system scan operation for
multi-site applications. Upon the loss of the currently selected system's control channel, radios can
be programmed to automatically scan the control channels of other systems. If a new control
channel is found, the radio will switch to the new system and sound an alert tone.