Ocean Signal PLB1 User Manual - page 10
rescueME PLB1 USER MANUAL
10
Part No 912S-01260
7.
7.
7.
7.
APPENDIX
APPENDIX
APPENDIX
APPENDIX
7.1
7.1
7.1
7.1
System Overview
System Overview
System Overview
System Overview
7.1.1
7.1.1
7.1.1
7.1.1
COSPAS/SARSAT System
COSPAS/SARSAT System
COSPAS/SARSAT System
COSPAS/SARSAT System
The COSPAS/SARSAT system utilises two
satellite arrays to provide distress alert
and location data to search and rescue
authorities. The GEOSAR system can
provide near immediate alerting within
the coverage of the receiving satellite.
The LEOSAR system provides coverage of
the polar region beyond the range of the
GEOSAR system. It can calculate the
location of distress events using Doppler processing techniques and is less susceptible to
obstructions which could block a signal in a given direction. The system is comprised of
instruments on board the satellites which detect the signals from the distress beacons.
Ground receiving stations, referred to as Local Users Terminals (LUTs) receive and
process the satellite downlink signal to generate the distress alerts. The distress alerts,
generated by the LUTs, are then received by Mission Control Centres (MCCs) which then
forward the alert to Rescue Co-ordination Centres (RCCs), Search and Rescue Points of
Contacts (SPOCs) and other MCCs.
7.1.2
7.1.2
7.1.2
7.1.2
GPS System
GPS System
GPS System
GPS System
The GPS system is a satellite array that enables a GPS receiver to determine its position
around the globe. There are a minimum of 24 satellites orbiting the Earth providing
accurate position, velocity and time information. The PLB1 PLB has a built in 66 channel
GPS receiver and antenna allowing reception of this positional data. The received position
is then coded into the PLB emergency transmission thus enabling search and rescue
teams to narrow the search area and increase the effectiveness of the rescue operation.
7.2
7.2
7.2
7.2
Accessories
Accessories
Accessories
Accessories
To be completed