无线同频选呼系统李新胜用国产３０ＭＨｚ、１５０ＭＨｚ无线对讲机作内部通信时．往往采用同频组网方式．虽具有使用简便、呼叫迅速、设备简单、价格低廉等优点，但却存在一呼百应、相互干扰、无法保密等缺点．给使用者带来一定的不便。本文介绍的同频选呼系统．采用先进... Radio frequency selective calling system Li Xinsheng Domestic 30MHz, 150MHz wireless intercom for internal communication. Often using the same frequency networking. Although it has the advantages of easy to use, quick call, simple equipment, low price and so on, it suffers from many drawbacks such as over-riding, mutual interference and being unable to keep secrets. Give the user some inconvenience. This article describes the same frequency selective call system. Using advanced ...