SARSAT Canadian Mission Control Centre TCA Tests at 121.5 MHz Resolute Bay, 27-28 May 1984.
DEFENCE RESEARCH ESTABLISHMENT OTTAWA (ONTARIO)
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The Canadian COSPAS-SARSAT users, and in particular the Officer-in-Charge of the Canadian Mission Control Centre CMCC, were concerned about the performance of COSPAS-SARSAT under fringe coverage conditions. The particular condition of concern was the situation when the Time of Closest Approach TCA was either outside or near the edge of the ground tracking stations viewing window. In order to test the system under these conditions, the CMCC organized test activations of standard, commercially available Emergency Locator Beacons ELTs transmitting at 121.5 MHz through the Rescue Coordination Centre RCC Edmonton at a position on the periphery of the Ottawa SARSAT Local User Terminal LUT coverage. Tests were carried out at Resolute Bay 74.72N, 094.95W on 27-28 May 84. The data generated as a result of these trials was analyzed and results are presented. It is concluded that SARSAT can function adequately under such conditions but that this performance can only be recognized by users, if they have better visibility into available signal processing quality indicators.
- Ground Support Systems and Facilities for Space Vehicles