1513Chapter 40
Message Repeaters
by Glen Ballou and Vic Cappetta
40.1 Digital Audio Storage................................................................... 1515
40.2 Message Repeaters..................................................................... 1515
40.3 How Message Repeaters Work............................................................ 1515
40.4 Message Repeater Usage................................................................. 1516
40.4.1 Hospital Applications for Message Repeaters.............................................. 1516
40.4.2 Factory Floor Applications for Message Repeaters......................................... 1517
40.4.3 Retail Store Applications for Message Repeaters........................................... 1517
40.4.4 School Applications for Message Repeaters............................................... 1518
40.4.5 Transportation Services Applications for Message Repeaters................................. 1518
40.4.6 Information/Broadcast Services Applications for Message Repeaters........................... 1 518
40.4.7 Message-on--Hold Applications for Message Repeaters..................................... 1519
40.4.8 Museum Applications for Message Repeaters............................................. 1520
40.4.8.1 Inductive Loop Systems.......................................................... 1520
40.4.8.2 Infrared Systems................................................................ 1520
40.4.8.3 RF Systems.................................................................... 1520
40.4.8.4 Sophisticated Systems............................................................ 1523
40.5 Narrow Beam Loudspeaker System........................................................ 1524
40.5.1 Voice Evacuation/Mass Notification Systems............................................. 1526
40.5.1.1 Case Study..................................................................... 1526
40.6 Audio Archival........................................................................ 1527
Acknowledgments.......................................................................... 1528
Additional Reading......................................................................... 1528