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词汇 Advanced Mobile Phone System
分类 英语词汇 英语翻译词典
释义

Advanced Mobile Phone System

中文百科

模拟式移动电话系统

模拟式移动电话系统(Advanced Mobile Phone System,AMPS),又称为北美移动电话系统,第一代移动电话系统。

AMPS于1980年在美国发展,是一种蜂巢式系统,将所涵盖的区域划分为细胞群,使用800MHz的频段。因易受电波干扰及窃听,2000年代后逐渐被全球移动通信系统(GSM)所取代。

英语百科

Advanced Mobile Phone System 类比式行动电话系统

Motorola DynaTAC 8000X TACS mobile phone
 Dr. Martin Cooper of Motorola made the first private handheld mobile-phone call on a larger prototype model in 1973. (The image shows a reenactment.)

Advanced Mobile Phone System (AMPS) is an analog mobile cell phone system standard developed by Bell Labs, and officially introduced in the Americas on October 13, 1983, Israel in 1986, Australia in 1987, and Pakistan in 1990. It was the primary analog mobile phone system in North America (and other locales) through the 1980s and into the 2000s. As of February 18, 2008, carriers in the United States were no longer required to support AMPS and companies such as AT&T and Verizon have discontinued this service permanently. AMPS was discontinued in Australia in September 2000 and in Pakistan by October 2004.

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