Tyco Electronics M7200 Manual Do Utilizador

•  The OpenSky network administrator also determines if the emergency is declared on the currently 

selected talk group or a “default” emergency talk group. Again, this is based upon the radio’s 
currently active profile. A talk group upon which an emergency is declared on is considered an 
“emergency talk group.” 

•  Upon successful emergency declaration: 

¾ 

An emergency tone will sound in the radio’s speaker/headset if the radio is not in stealth mode. 

¾ 

At the declaring radio, the Emergency button flashes red if the radio is not in stealth mode. The 
administrator can configure the radio to automatically transmit upon successful emergency 
declaration, at which point the 

 button will flash red. However, the 

 button flashing 

red is not a requirement for successful emergency declaration. 

¾ 

For an emergency call declaration, “EMERGENCY” indicates in the bottom line of the display. 
In addition, the emergency talk group’s name appears in the top line of the display, followed by 
an asterisk (*). The emergency talk group can be forwarded across the OpenSky network for 
emergency communications. 

¾ 

For an emergency alert declaration, “EMERG ALERT” indicates in the bottom line of the 
display. 

¾ 

For an emergency call declaration, other radio users and/or dispatchers at consoles will hear the 
emergency signal, a distinctive 3-tone burst. They will also hear audio from the declaring radio’s 
“hot” microphone, if any. 

¾ 

For an emergency alert declaration, only dispatchers at consoles will hear the emergency signal 
and, if any, audio from the declaring radio’s “hot” microphone. 

¾ 

For an emergency call the declaring radio’s microphone remains “hot” for a predetermined 
amount of time. In other words, the radio transmits audio for a period of time even when the 
microphone’s PTT button is not depressed. Audio is transmitted over the emergency talk group. 
When the microphone is “hot” for this initial period (typically ten seconds), simply speak into it 
for voice transmission. 

If an emergency declaration is not successful, the radio will periodically re-attempt until it is successful. 
During this retry period, the radio will flash “EMERG PEND” on the bottom line of the display. It will 
display “EMERG RETRY” for each attempt. 

When this feature is enabled and an emergency call or alert is declared by pressing the emergency button, 
the radio will not play a tone and will display an abbreviated emergency message (default is EBA). This 
feature is enabled or disabled via programming or via the menu. 

 

If the Silent Emergency feature is enabled or disabled via programming, the setting will 
survive power cycle. Enable/Disable selection via the menu will NOT survive power cycle 
and the enable/disable state will revert to the programmed setting at power up. 

To clear an emergency, press and hold the Emergency button for at least three seconds. However, this can 
only be accomplished at the radio where the emergency was originally declared (the initiating radio), by a 
dispatcher at a console, at a supervisory radio, or by the network administrator. When the emergency is 

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