In a radio paging system and a radio paging method, in which all transmitters are simply synchronized with each other with a satisfactory precision. A central exchange and each transmitter are each provided with a GPS clock for measuring time according to a current time transmitted from the GPS...http://www.google.fr/patents/US5802453?utm_source=gb-gplus-shareBrevet US5802453 - Radio paging transmitter which adjusts its transmission time based on detection of its own transmission delay
Radio paging transmitter which adjusts its transmission time based on ...
