Right. Sirius XM Telematics uses cellular for its communications. The satellite radio service is a one way system, as is GPS. To be tracked "by GPS", a vehicle or other thing must have a way to return its GPS locations to the service that is tracking it. In 95% of cases, this return link is cellular, though there are other methods that use other radio systems, as well as local storage of the information on a memory unit to be retrieved later.
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Right. Sirius XM Telematics uses cellular for its communications. The satellite radio service is a one way system, as is GPS. To be tracked "by GPS", a vehicle or other thing must have a way to return its GPS locations to the service that is tracking it. In 95% of cases, this return link is cellular, though there are other methods that use other radio systems, as well as local storage of the information on a memory unit to be retrieved later.