ACR Electronics Satellite2 406 Руководство по поддержке продукта - Страница 13
Просмотреть онлайн или скачать pdf Руководство по поддержке продукта для GPS ACR Electronics Satellite2 406. ACR Electronics Satellite2 406 20 страниц. Emergency position indicating radio beacon
Печатать страницуNOTE: There are no user serviceable items inside the EPIRB. DO NOT OPEN THE EPIRB UNLESS TO
DISABLE IN CASE OF FAULTY ACTIVATION.
Self contained long life batteries with a five-year recommended replacement cycle provide power. See
Factory Authorized Service Center for replacement.
Battery replacement includes servicing the EPIRB by replacing all o-rings, testing the water seal and the
electrical properties.
Always refer all long life battery replacement and other EPIRB service to a factory authorized service
center.
For the nearest location of a factory authorized service center, call 1-800-432-0227 Ext. 112 (toll free) or
visit our website at www.acrelectronics.com
5.3.1
The Satellite
™ 406 and RapidFix™ 406 contains lithium batteries which meet the requirements of the
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DOT Hazardous Materials Regulations. They also meet the United Nations Classification of Lithium
Batteries for Shipment as "Non – Dangerous Goods".
SECTION 6 – THE SEARCH AND RESCUE SYSTEM
6.1
General Overview
EPIRB's provides distress alerting via radio transmission on 406 MHz to satellites of the COSPAS-
SARSAT network. The RapidFix™ 406 can also transmit a distress alert to the GEOSAR network that
includes GPS latitude and longitude coordinates that are inputted through an I/R Interface that connects to
the data output of a GPS Receiver.
The message transmitted is unique for each beacon, which provides identification of the transmitter
through computer access of registration files maintained by the National Oceanic and Atmospheric
Administration or other National Authority. Remember, if your beacon is not registered, Search and
Rescue (SAR) Authorities do not know who you are, or how to contact anyone who might know anything
about your situation (Refer to section 1).
Once the signal (406 MHz) is relayed through the LEOSAR and/or GEOSAR network, SAR forces
determine who is closest, and then track the signal using the 121.5 MHz homing frequency for intermediate
and short-range location.
6.2
Satellite Detection
EPIRB's transmits to the satellite portion of the COSPAS-SARSAT System. COSPAS-SARSAT is an
international system that uses Russian Federation and United States low altitude, near-polar orbiting
satellites (LEOSAR) that assist in detecting and locating activated 121.5/243 MHz beacons and 406 MHz
Satellite beacons.
COSPAS and SARSAT satellites receive distress signals from EPIRB's transmitting on the frequency of
406 MHz. The COSPAS-SARSAT 406 MHz beacon signal consists of a transmission of non-modulated
carriers followed by a digital message format that provides identification data. The 406 MHz system uses
Satellite-borne equipment to measure and store the Doppler-shifted frequency along with the beacons
digital data message and time of measurement. This information is transmitted in real time to an earth
station called the Local User Terminal (LUT), which may be within the view of the satellite, as well as being
stored for later transmission to other LUTs.
The LUT processes the Doppler-shifted signal from the LEOSAR and determines the location of the
beacon; then the LUT relays the position of the distress to a Mission Control Center (MCC) where the
distress alert and location information is immediately forwarded to an appropriate Rescue Coordination
Center (RCC). The RCC dispatches Search and Rescue (SAR) forces.
The addition of the GEOSAR Satellite system greatly improves the reaction time for a SAR event. This
satellite system has no Doppler capabilities at 406 MHz, but will relay the distress alert to any of the LUT
stations. When there is GPS data included in the distress message, SAR authorities instantly know your
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