1. EUM/OPS/09/VWG/003 M. Horny Issue 1 – 27-29 October 2009 Page 1 Plans for the Introduction of a High Rate DCP Service on MSG DCP and HRDCP Comparison HRDCP message Overall Planning User and Manufacturer Liaison

2. EUM/OPS/09/VWG/003 M. Horny Issue 1 – 27-29 October 2009 Page 2 DCP Comparison “Standard” DCP  Baud Rate = 100 bps  Current Slot allocation = 1min30sec.  Timing accuracy = +/- 15 seconds  Data per DCP message = 649 bytes  Channel bandwidth MTP = 3KHz  Channel Bandwidth MSG = 1.5 KHz  Max nb of messages per channel per day = 760 High Rate DCP  Baud Rate = 1200  Slot allocation = 10 sec minimum  Timing accuracy = +/- 0.5 seconds  Data per DCP message min 653 bytes for 10 second time slot.  Channel Bandwidth = 2.25 KHz  Max nb of messages per channel per day = 10800  Maximum message size single message = 65535 bytes

3. EUM/OPS/09/VWG/003 M. Horny Issue 1 – 27-29 October 2009 Page 3 HRDCP Message format HeaderPlatform Data CRC Trailer 42123 DCP Address 31 Res. 1 Platform Data Length 16 Sequence Counter 8 Engineering Information Version 3 Type 1 Compr. 2 Health 10 Spare 24 12bytes4 1–65535bytes(but also TX time limited) Bits Bytes MSB Sent First

4. EUM/OPS/09/VWG/003 M. Horny Issue 1 – 27-29 October 2009 Page 4 Main HRDCP characteristics Support lossless compression Scrambled and encoded, using a convolutional concatenated encoder – RS (255,232) as inner code – Modulation modes: –CMM1: unmodulated carrier only, –CMM2: BPSK modulation for preamble and ASM, and –CMM3: OQPSK for HRDCP coded message frame.

5. EUM/OPS/09/VWG/003 M. Horny Issue 1 – 27-29 October 2009 Page 5 Overall Planning Phase 1- DCP Receiver Prototype Testing with standard DCPs –November 2009 Phase 2- DCP Receiver Prototype Testing with HRDCPs –3 rd Quarter 2010 Phase 3 - Operational Implementation –End 2010

6. EUM/OPS/09/VWG/003 M. Horny Issue 1 – 27-29 October 2009 Page 6 Users and Manufacturers Liaison September 2009 EUMETSAT Meteorological Satellite Conference –A poster presented at the conference with information about HRDCPs. DCP Flyer –A EUMETSAT DCP Flyer will be produced describing the Meteosat Data Collection System and highlighting the benefits of HRDCPs. This is planned for 4th quarter 2009. HRDCP Workshop –This workshop is planned for 15 th of March 2010 aimed at DCP manufacturers and large DCP Operators and will cover: –Overall HRDCP implementation plan –Detailed discussion of the HRDCP specifications –Manufacturers plans for the introduction and marketing of HRDCPs –HRDCP certification process

7. EUM/OPS/09/VWG/003 M. Horny Issue 1 – 27-29 October 2009 Page 7 CONTACT EUMETSAT Michel Horny: E-mail: Michel.Horny@eumetsat.intMichel.Horny@eumetsat.int Phone: +00 49 6151 807 891 Fax: +00 49 6151 807 304