SADISOPSG/9-WP/23

27/4/04

SATELLITE DISTRIBUTION SYSTEM OPERATIONS GROUP (SADISOPSG)

NINTH MEETING

Dakar, Senegal, 1 to 4 June 2004

Agenda Item	3:	Operation of the SADIS
3.3:	Operational efficacy of the SADIS

OPERATIONAL EFFICACY OF THE SADIS IN ASECNA MEMBER STATES

(Presented by ASECNA)

SUMMARY
This paper highlights the assessment of SADIS operational efficacy broadcast in ASECNA member States during years 2002/2003.

1.	INTRODUCTION

1.1	This paper shows a brief summary of the assessment of SADIS operational efficacy broadcast in the 15 ASECNA member states during years 2002/2003. Attached is the summary of the assessment forms from ASECNA meteorological centres. Three centres out of the 15, were not included in this assessment because there are no VSAT SADIS receivers installed in these centres, they are receiving SADIS data from the ASECNA telecommunication network.

2.	DISCUSSION

2.1	The Table 1 highlights the status of SADIS operational efficacy broadcast in 15 sites according to the annual assessment questionnaire.

2.2	As a result, the quality of the reception signal (4.a), the availability of WAFS products in T4 facsimile format (4.b.i), in GRIB code (4.b.ii), the availability of OPMET message information (4.b.iv) and the overall assessment of the reliability of VSAT receiving equipment (5.a) are all found good everywhere except in Ouagadougou for unavailability of OPMET, Niamey for bad quality of the reception signal and an unavailability of WAFS products in T4 format, and in N'djamena for bad quality of the reception signal and unavailability of OPMET information. All 12 centres found the administrative messages broadcast on SADIS sufficient to keep advise of the broadcast status except in Lomé. All faults developed in the ASECNA VSAT receiving equipment, were repaired by local technicians or by technicians from ASECNA headquarters in Dakar and no equipment was returned to London.

3.	CONCLUSION

3.1	According to these results, it appears that ASECNA has gained a good experience in the maintenance of SADIS reception equipment and in the training of the operational personal on using this system.

4.	ACTION BY THE SADISOPSG

4.1	The SADISOPSG is invited to:

a)	note the information included in this paper;

b)	note the willingness of ASECNA to provide its expertise in the SADIS maintenance and operational personal training; and

c)	recommend that ASECNA's efforts in the implementation of the SADIS system, be reflected in the report of SADISOPSG/9 meeting.

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SADISOPSG/9-WP/23

APPENDIX

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