User Guide

CTM-110/120 Installation & Operation Manual

Page 5

1702-0037 Rev 3.2

The first CDMA networks (now called CDMAone) were commercially launched in 1995, and

provided roughly 10 times more capacity than analog networks - far more than TDMA or GSM.

Since then, CDMA has become the fastest-growing of all wireless technologies. In addition to

supporting more traffic, CDMA brings many other benefits to carriers and consumers, including

broader coverage and stronger security.

Just as the second generation of wireless technology improved upon earlier systems, the industry

looked to a third generation of technology for more advances. Although wireless was used

almost exclusively for voice communication, the ability to deliver data over the air was also very

promising, especially as Internet users and content proliferated.

In 1999, the International Telecommunication Union adopted an industry standard for third-

generation (3G) wireless systems that can deliver high-speed data and other new features.

Because CDMA2000 is evolved directly from the previous generation of proven CDMA

systems, it provides the fastest, easiest, most cost-effective path to 3G services. While all 3G

technologies (CDMA2000, WCDMA and TD-SCDMA) may be viable, CDMA2000 is much

further ahead in terms of product development, commercial deployment and market acceptance.

The first commercial CDMA2000 networks were launched in South Korea in early 2001. A large

and growing range of CDMA2000 chipsets, terminals and network infrastructure systems are

now in volume production and gaining economies of scale, as many more North American,

Latin American and Japanese carriers plan to roll out CDMA2000 services in 2002 and 2003

CDMA2000 1X technology supports both voice and data services over a standard (1X) CDMA

channel, and provides many performance advantages over other technologies. First, it provides

up to twice the capacity of earlier CDMA systems, helping to accommodate the continuing

growth of voice services as well as new wireless Internet services. Second, it provides peak data

rates of up to 153 kbps (and up to 307 kbps in the future), without sacrificing voice capacity for

data capabilities. And because it's backwards-compatible with earlier CDMA technology,

CDMA2000 1X provides an easy and affordable upgrade path for both carriers and consumers.

For more information about CDMA visit the CDMA Development Group (CDG) at

http://cdg.org/ The CDG is an industry consortium of companies who have come together to

develop the products and services necessary to lead the adoption of CDMA wireless systems

around the world.

The Global Positioning System (GPS) is a worldwide radio-navigation system operated by the

US Department of Defence (DoD) and formed from a constellation of 24 satellites orbiting at

an altitude of 10,900 nautical miles and with an orbital period of 12 hours.

CDMA Overview

GPS Overview