Operation Manual

3-42 Operations
Two types of Distress Calls can be made: one that specifies the type of
distress and one that does not.
Unspecified Distress Call
To make a Distress Call without specifying type of distress:
1) Open the door labeled DISTRESS on the back of the handset and press
and hold the DISTRESS button. dSr flashes on the 7-segment display
and the DSC indicator appears. On the dot matrix display, a countdown
message appears.
2) Continue to hold the DISTRESS button for the duration of the
countdown. An alert tone is sounded at one-second intervals.
3) After the countdown has completed, the message RELEASE appears
on the dot matrix display. Release the DISTRESS button.
The unit switches to channel 16, displays the message AWAIT ACK,
and monitors channel 70 for an acknowledgement.
Even if you fail to hold the button for the full 4 seconds, the DISTRESS
call will be made automatically when the countdown has completed.
The unit retransmits the DISTRESS call at random intervals of 3.5 to 4.5
minutes, until a response is received or the call is manually cancelled.
press
DISTRESS
Countdown starts 1 second after pressing
DISTRESS key. The types of DISTRESS
can be selected by releasing the key
before the Countdown is completed.
release
DISTRESS
no operator
response
RAY230_sect3_3.p65 7/13/2001, 1:42 PM42