Fire and Police services in four Southern Idaho counties - Lincoln, Gooding, Jerome and Twin Falls - needed to improve communications and reduce costs by consolidating to a single despatch system. Radio users are spread across a wide area.
将客户故事下载为PDF紧急服务的移动收音机的用户遍布大面积,但需要一个系统,使它们能够所有访问相同的无线电通道。他们确定了一个同时广播系统 - 从相同频率的许多发射机同时广播 - 将提供它们所需的内容。
然而,Simulcast系统可以购买和维护昂贵,因为需要精确控制变送器,以在覆盖范围内接收未置换的音频信号。随着时间的推移,传输器频率漂移和调制变送器的音频信号必须校正。
The Fire and Police Services chose a TaitNet Quasi-Sync system for its key advantage over traditional technology: the Tait system uses advanced computer technology to virtually eliminate the maintenance. TaitNet QS uses high stability oscillators to maintain a very stable transmitter frequency.
Tait North America, in conjunction with dealer Teton Communications, installed a four-channel system with a total of 20 sites for the emergency services in Southern Idaho:
The new system delivers high audio quality to areas not previously covered. Digital signal processing-based Line Equalizer Modules that route audio to each transmitter, analyze the characteristics of the neighboring transmitter and automatically adapt their own signal to match.