Campbell COM9522B Manuel d'instructions télécharger pdf (Page 12)

9522B Iridium Satellite Modem and COM9522B Interface Modem

FIGURE 1-1. 9522B Base Station Configuration

FIGURE 1-2. 9522B Remote Station RS-232 Configuration

FIGURE 1-3. 9522B Remote Station CS I/O Configuration

1.5 Where it Works

Unlike other satellite systems, the Iridium satellite network is located in a low

polar orbit, giving the system complete global coverage.

Their relatively low altitude (780 km) means that they are situated close to

transmitting modems and, therefore, require less transmission energy.

Additionally, the Iridium network consists of 66 satellites in 11 planes with an

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Campbell COM9522B Manuel d'instructions Page 12