SPECIFICATION FOR COSPAS-SARSAT

SPECIFICATION FOR COSPAS-SARSAT 406 MHz DISTRESS BEACONS C/S T.001 Issue 3 – Revision 10 October 2009 - i - C/S T.001 - Issue 3 - Rev.10 October 2009 SPECIFICATION FOR COSPAS-SARSAT 406 MHz DISTRESS BEACONS History Issue Revision 1 0 2 0 3 0 3 1 3 2 3 3 3 3 3 4 3 5 3 6 3 7 3 8 3 9 3 10 Date April 1986 November 1988 November 1995 January 1998 October 1998 October 1999 October 2000 October 2002 October 2003 October 2004 November 2005 November 2007 October 2008 October 2009 Comments Approved by the Cospas-Sarsat Steering Committee (CSSC-15) Approved by the Cospas-Sarsat Council (CSC-1) Approved by the Cospas-Sarsat Council (CSC-15) Approved by the Cospas-Sarsat Council (CSC-19) Approved by the Cospas-Sarsat Council (CSC-21) Approved by the Cospas-Sarsat Council (CSC-23) Editorial changes, approved by the Cospas-Sarsat Council (CSC-25) as Corrigendum to C/S T.001 Issues 3 - Rev.3 Approved by the Cospas-Sarsat Council (CSC-29) Approved by the Cospas-Sarsat Council (CSC-31) Approved by the Cospas-Sarsat Council (CSC-33) Approved by the Cospas-Sarsat Council (CSC-35) Approved by the Cospas-Sarsat Council (CSC-39) Approved by the Cospas-Sarsat Council (CSC-41) Approved by the Cospas-Sarsat Council (CSC-43) - ii - C/S T.001 - Issue 3 - Rev.10 October 2009 LIST OF PAGES Page # Date of latest revision cover Oct 09 i Oct 09 ii Oct 09 iii Oct 03 iv Nov 07 v Nov 07 vi Oct 03 1-1 Oct 03 1-2 Oct 03 2-1 Oct 03 2-2 Oct 03 2-3 Oct 04 2-4 Nov 07 2-5 Oct 03 2-6 Oct 03 2-7 Oct 03 2-8 Oct 03 3-1 Oct 04 3-2 Oct 04 4-1 Nov 05 4-2 Nov 05 4-3 Oct 09 4-4 Oct 09 4-5 Oct 08 4-6 Nov 07 Page # Date of latest revision A-1 Oct 98 A-2 Oct 09 A-3 Nov 07 A-4 Nov 07 A-5 Oct 98 A-6 Oct 99 A-7 Oct 98 A-8 Oct 98 A-9 Oct 09 A-10 Oct 09 A-11 Oct 09 A-12 Oct 09 A-13 Oct 98 A-14 Nov 05 A-15 Oct 98 A-16 Nov 05 A-17 Nov 07 A-18 Nov 07 A-19 Oct 09 A-20 Nov 07 A-21 Nov 07 A-22 Oct 98 A-23 Oct 98 A-24 Oct 03 A-25 Oct 08 A-26 Oct 08 A-27 Oct 98 A-28 Oct 08 A-29 Oct 08 A-30 Oct 08 B-1 Oct 98 B-2 Oct 98 B-3 Oct 98 B-4 Oct 98 B-5 Oct 98 B-6 Oct 98 C-1 Oct 03 C-2 Oct 03 T1OCT03 - iii - C/S T.001 - Issue 3 - Rev.5 October 2003 TABLE OF CONTENTS Page Revision History ............................................................................................................................i List of Pages .................................................................................................................................ii Table of Contents..........................................................................................................................iii List of Figures...............................................................................................................................vi List of Tables................................................................................................................................ vi 1. Introduction.........................................................................................................................1-1 1.1 Purpose...........................................................................................................................1-1 1.2 Scope..............................................................................................................................1-1 2. System Requirements.........................................................................................................2-1 2.1 Beacon Functional Elements..........................................................................................2-1 2.2 Digital Message Generator.............................................................................................2-1 2.2.1 Repetition Period..................................................................................................2-1 2.2.2 Total Transmission Time.....................................................................................2-1 2.2.3 Unmodulated Carrier............................................................................................2-1 2.2.4 Digital Message....................................................................................................2-1 2.3 Modulator and 406 MHz Transmitter............................................................................2-3 2.3.1 Transmitted Frequency.........................................................................................2-3 2.3.2 Transmitter Power Output....................................................................................2-4 2.3.3 Antenna Characteristics........................................................................................2-4 2.3.4 Spurious Emissions..............................................................................................2-5 2.3.5 Data Encoding......................................................................................................2-5 2.3.6 Modulation...........................................................................................................2-6 2.3.7 Voltage Standing-Wave Ratio.............................................................................2-7 2.3.8 Maximum Continuous Transmission..................................................................2-7 3. Digital Message Structure..................................................................................................3-1 3.1 Basic Structure...............................................................................................................3-1 3.2 Beacon Coding...............................................................................................................3-2 .../... ... - tailieumienphi.vn