Location Data Retransmit Capability
During 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 by the
response center. In this situation you will
temporarily lose voice contact with the operator and
the messages "SENDING LOCATION DATA" and
"DATA RECEIVED" 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.
152Global Positioning System
Vehicle 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, typically within
100 feet. In addition to latitude and longitude,
the system also determines heading and speed.
Vehicle positioning information is relayed to the
Lincoln Security Response Center ONLY
during roadside or emergency requests. The
response center will not be able to track your
location while in an inactive state.
