User's Manual

Viking Portable 600 Radio Operating Manual 6-13
SmartNet / SmartZone / P25 Trunked Features
6.8.3.1 Emergency Hot Mic
If Emergency Hot Mic has been enabled for emergency calls, automatic transmitting
occurs with microphone audio unmuted without having to manually press the PTT switch.
The automatic transmit period is programmed for 10-120 seconds in ten-second intervals.
If the “Increment by 1” option is enabled, the automatic transmit period is programmed for
1-12 seconds in one-second intervals. If this feature or emergency calls are not enabled by
programming, automatic transmitting does not occur. This feature is initiated only on the
first press of the Emergency button. Subsequent presses do not trigger automatic
transmissions. To reset this function, cycle power or press and hold the Emergency button.
6.8.3.2 Placing an Emergency Call
1 If required, select a channel of a system on which Emergency Calls are enabled and
press the Emergency option button or select that menu parameter. The Emergency
Alarm is then sent as described in Section 5.9.1, Emergency Alarms if applicable.
2 Emergency Alarm entry is displayed upon the pressing of the Emergency button.
Console Ack is displayed when an ack is received back from the console for an
Emergency Alarm, indicating that the dispatcher acknowledges the emergency.
Emergency Exit is displayed when the user presses and holds 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 (private, 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, Surveillance Mode), the radio will behave in accordance to the individual
surveillance mode options. If “No Receive Activity During Emergency” is
programmed, receive audio and the front panel LED are disabled in the receive mode.
5 To exit this mode, cycle radio power or press and hold the Emergency button.
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 Alarm
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.
Preliminary Draft 3/9/12