Page 67 - Remembering ISTEL
P. 67

Remembering ISTEL




       expansions  and  the  ever  growing  need  for  communications,  the  existing
       microwave network was not able to provide the communications they would
       require for the 1980s.


                                                                            Group         Systems,          the
                                                                            forerunner of BL Systems,
                                                                            were  given  the  task  of

                                                                            creating  the  expanded
                                                                            microwave network.


                                                                            They had to conduct many
                                                                            surveys        assessing        the

                                                                            telephone and data traffic
                                                                            for all BL Cars sites and to
                                                                            design,  install  and  have
                                                                            ready for service by the 1st

                                                                            January            1978,           a
                                                                            communications  network

                                                                            connecting  all  BL  Cars
                                                                            sites.

                                                                            After  a  large  amount  of

                                                                            effort, this target was met
                                                                            and  on  the  1st  January
                                                                            1978          the         present

                                                                            Microwave  Network  went
                                                                            into  service.  The  new

                                                                            network  had  four  new
                                                                            microwave radio links but
                                                                            still    incorporated           the
                                                                            Austin        Morris         radio

                                                                            equipment          which       had
                                                                            undergone             a       very

                                                                            extensive  upgrade.  It  was
                                                                            realised  at  this  stage  that
                                                                            this  radio  equipment  was
                                                                            already eight years old and

                                                                            even        with       upgrades
                                                                            required  replacing  within

                                                                            three to four years.



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