Draft 02 - Sep 1 2015
6-16
Viking Mobile Radio Operating Manual
SMARTNET / SmartZone / P25 Trunked Features
6.9.3.2
Placing an Emergency Call
To place an Emergency Call:
1
If required, select a channel of a system on which Emergency Calls are enabled and
press the Emergency option switch, soft button (Lightning Control Head), or select the
menu option. The Emergency Call is then sent as described in Section 5.9.1 if
applicable.
2
Emergency tones sound as follows: Emergency Call entry is played upon the pressing
of the Emergency button. Console Acknowledgement is played when an
acknowledgement is received back from the console for an emergency Call. Emergency
Exit is played when you press and hold the emergency button. Below are the tones for
Emergency.
3
If the preceding Emergency Hot Mic feature is enabled, the call is automatically
transmitted without pressing the PTT switch. If it is disabled, press the PTT switch and
begin speaking as with a standard call.
4
All group calls which follow are then emergency calls (unit, telephone, and call alert
calls are not allowed). If the channel is changed, the call is made on the emergency
talkgroup programmed for the new channel. If the Surveillance Mode is enabled (see
Section 4.10), all indicators, lights, and tones are disabled. If “No Receive Activity
During Emergency” is programmed, receive audio, the front panel LED, and receive
icons are disabled in the receive mode.
5
To exit this mode, cycle radio power or press and hold the Emergency switch.
6.9.4
Emergency Press and Hold
The Viking mobile radio provides two means of activating emergency mode. With an
emergency button programmed, the radio will enter emergency mode upon a press or a
press and hold. Pressing and holding the emergency button while in emergency mode will
cancel emergency. When enabled, the Emergency Press and Hold feature restricts
activation to the press and hold scenario.
Console
Acknowledgement
Emergency Alarm
Ack
Emergency Alarm
Acknowledged
Successful
Two 1000 Hz 175 ms tones with
50 ms spacing followed by Three
1000 Hz 175 ms tones with 150
ms spacing
Emergency Call
Entry
Emergency Button
Press
Emergency button has
been Pressed
1000 Hz continuous tone for 175
ms.
Emergency Exit
Emergency Canceled Emergency is
Canceled
1000 Hz continuous tone for 1
sec.
