A satellite (26) is operable to transmit timing information to a plurality of paging sites having towers (10) associated therewith and satellite receivers (48) associated therewith. This provides a simulcast transmission of the timing information such that the timing information arrives at each of the...http://www.google.fr/patents/US5355529?utm_source=gb-gplus-shareBrevet US5355529 - Paging system with satellite time base
