Hot Mic Emergency |
Once emergency mode has been
radio-user initiated with an 
Emergency
button-press, and
then once an Emergency Alarm acknowledge has been received
back to the radio (from the dispatcher / console), or all alarm retries have been exhausted
(see Retry Counter), Hot
Mic Emergency causes the radio to automatically key-up
and transmit an emergency Call (see Emergency Operation).
The radio transmits with its microphone remaining automatically
unmuted / open for the time selected by the Hot Mic
Tx Period field. The radio is then in normal emergency Call
mode. This is also known as Emergency with Voice to Follow.
When the Long Keypress for Emergency
field is not
set to "0", the Emergency Call Mode is exited with a
long-keypress of the Emergency button. 
This is also known as "Trunking Emergency with Voice to Follow".
Available for: ASTRO 25 and Type II - Trunking
Systems
|
Another
press of the Emergency
button does not re-initiate another
Emergency Hot Mic transmission; emergency
mode must be exited and then
re-initiated in order for the "automatic key-up"
Hot Mic transmission to re-occur. |
Exiting
emergency mode
is accomplished with a Long
Keypress Duration of the Emergency Button or by powering-off
the radio. |
|
Emergency via
Silent Audio |
Once emergency mode has been
radio-user initiated with an
Emergency
button-press, and
then once an emergency alarm acknowledge has been received
back to the radio (from the dispatcher / console), or all alarm retries have been exhausted
(see Retry Counter),
the radio automatically keys-up
into this emergency mode with its microphone remaining muted /
closed. This transmission continues for the amount of time specified
in the Silent Audio Tx
Period field. The radio is then in normal emergency Call mode.
When the Long Keypress for Emergency
field is not
set to "0", the Emergency Call Mode is exited with a
long-keypress of the Emergency button.
Available for: ASTRO 25 Trunking
communications ONLY |
