Further, a variety of other data items could be employed for the acquisition oftelemetry data from a transmitter.Turning to FIGS. 10A and 10B, illustrated is a flow chart of a typical routine used by the software 304 of the server 112 to identify particular transmitters within the system S. The routine begins at a step 600 when a packet of data has beenreceived from one of the antennas A.sub.1 104