sat nav LINCOLN CONTINENTAL 1997 Owners Manual

82Similarly, if the cellular call is disconnected by the
network prior to receipt of the termination tone,
another call to the response center will also
automatically be dialed. The message ªREDIAL IN
PROGRESSº will be displayed on the Message
Center and voice communication with an operator
will be restored.
NOTE:During redial calls, full control of the
cellular phone is returned to you. Pressing either
the ªPWRº or ªENDº button on the cellular
handset will terminate the assistance request and
reset the system.Location Data Retransmit CapabilityDuring an activation, the Lincoln Security Response
Center operator has the capability to initiate a
retransmission of the electronic data message. This
may be necessary to ensure a more precise
determination of vehicle location or to track a
vehicle that is moving. To accomplish the
retransmit, a special tone is sent to the vehicle bythe response center. In this situation you will
temporarily lose voice contact with the operator and
the messages ªSENDING LOCATION DATAº and
ªDATA RECEIVEDº will respectively be displayed
on the Message Center. After the data
retransmission is complete, voice communication
will be restored and the CID, LAT, LON and HDG
message will again alternately toggle on the Message
Center display.
Global Positioning SystemVehicle location is continuously updated via Global
Positioning System (GPS) technology. GPS was
developed by the U.S. Department of Defense for
worldwide navigational and positioning purposes. It
utilizes a constellation of 24 orbiting satellites
located more than 20 thousand kilometers above
the earth. At any given time, several of the 24
satellites should be visible to the vehicle's GPS
receiver. Based on the time for signals emitted by
these satellites to reach the receiver, an on-board
computer will determine the vehicle's location,
File:05fncfc.ex
Update:Fri Sep 6 14:53:57 1996

84Positioning capability temporarily
degraded after battery reconnectWhen your vehicle is started, the Lincoln RESCU
GPS receiver begins the process of determining
vehicle location. The receiver will search the sky
and attempt to acquire signals from all visible
satellites. A real-time clock and an almanac
containing detailed information about the satellite
constellation are stored in the on-board computer's
memory and are used to expedite the search. If the
vehicle's battery is disconnected, the clock memory
is erased and time and date are lost. Once the
battery is reconnected, it could take approximately
15 minutes to reacquire the clock and for
positioning capability to be restored. During this
time, the system will operate but the response
center will not be able to identify your location. In
this situation, the operator will depend on you to
provide verbal information regarding vehicle
location.
Inoperative if cellular signal marginal or
unavailableSince the Lincoln RESCU System utilizes the
vehicle's cellular phone, it can only be operated in
geographical areas with cellular coverage. Although
approximately 90 percent of the U.S. population
lives and works in cellular coverage areas, there are
various rural or mountainous areas where coverage
is marginal or does not exist. If an activation occurs
in this situation, the messages ªNO CELLULAR
SIGNALº and ªWAITING TO ACQUIREº will
alternately be displayed on the Message Center. If
after several attempts cellular service cannot be
acquired, the message ªUNABLE TO PLACE CALLº
will be displayed, the assistance request will be
terminated and the phone will return to its normal
operating mode.
File:05fncfc.ex
Update:Fri Sep 6 14:53:57 1996