Consumer Band (CB) radios popularize inexpensive shared channel medium

ellular igital acket ata: An enhanced system overlay for transmitting and receiving data over cellular telephone networks.

See Cellular Digit Packet Data.

Cellular Digit Packet Data. A data transmission technology that uses unused cellular phone channels to transmit data in packets.

The transfer of data via unused bandwidth normally used by mobile phones between 800 and 900 MHZ. Speeds of up to 19.2 kbits/sec are possible.

abbreviation for "Cellular Digital Packet Data"] A wireless radio frequency (RF) communication service that can deliver data packets over existing cellular phone networks that have been upgrading for CDPD. CDPD is capable of transfer speeds of up to 19.2 KBPS. The CDPD packets are actually sent between pauses in the cellular phone conversations. CDPD cellular modem service is currently available in about 65 US cities.

Cellular digital packet data. Sending digital data over the existing advanced mobile phone system by transmitting dense packets on vacant analog channels.

Cellular Digital Packet Data (CDPD) is a technology installed on many analog cellular towers for transmitting and receiving data over cellular networks. Technology that allows data files to be broken into a number of "packets" and sent along idle channels of existing cellular voice networks.

Cellular Digital Packet Data. An open wireless transmission standard allowing two-way 19.2-Kbps packet data transmission over existing cellular telephone channels (AMPS with CDPD capability.) In essence, CDPD technology uses idle network capacity caused by pauses in phone conversations and gaps between calls placed, etc. to transmit data.

(Cellular Digital Packet Data) A wireless carrier, an inernet protocol based network, who's specs have just been finalized (1993). 19,200bps, 114 byte packets. 800 Mhz, uses 0.6 3 watts to transmit. Operates in the 9000 cell sites. Sends digital data over idle analog voice channels, such as CSC. (see PCWeek 13 13, 4,3/34,34 29 Jan 1996 for CDPD distribution)

Cellular Digital Packet Data - a method of sending data through cellular networks. CDPD is used with wireless credit card terminals to transmit transactions and deposits in mobile environments.

Cellular Digital Packet Data. An enhanced system overlay for transmitting and receiving data over cellular networks. Supports AT&T's PocketNet service.

Cellular Digital Packet Data. A contention-based packet access scheme for analog cellular channels. CDPD transmits and receives digital data using idle analog cellular channels.

Cellular digital packet data. A digital cellular standard used in some smart phones. Transmission rates are limited to 19.2 Kbps.

Cellular Digital Packet Data. A wireless communications protocol being used by many law enforcement agencies for mobile computer communications.

A standard capable of transmitting Web data to PDAs such as Palm Pilots. Whenever a lag occurs in data transmission, CDPD squeezes data into reserved spaces between analog cell channels. Although this data is low priority, carriers charge per packet.

Cellular Digital Packet Data. Short for Cellular Digital Packet Data, CDPD is a data transmission technology developed for use on cellular phone frequencies. CDPD uses unused cellular channels to transmit data in packets. This technology offers data transfer rates of up to 19.2 Kbps, better error correction and quicker call set up than using modems on an analog cellular channel.

Cellular Digital Packet Data - An early packet data network operated over the AMPS network in the US provides up to 19.2 kbps of raw data speed. Packet switching allows each user to time-share channels, allowing multiple users on the same channel, and increasing capacity.

Cellular digital packet data is an add-on technology that enables first-generation analog cellular telephone systems to provide packet data. It uses unused bandwidth normally used by AMPS mobile phones to transfer data with speeds up to 19.2 kbps. Introduced in 1994, CDPD is now being usurped by 2.5G and 3G technologies.

Short for Cellular Digital Packet Data, a data transmission technology developed for use on cellular phone frequencies. CDPD uses unused cellular channels (in the 800- to 900-MHz range) to transmit data in packets. This technology offers data transfer rates of up to 19.2 Kbps, quicker call set up, and better error correction than using modems on an analog cellular channel.

Cellular Digital Packet Data. A digital wireless transmission system that is deployed as an enhancement to the existing analog cellular network. Based on IBM's CelluPlan II, it provides a packet overlay onto the AMPS network and moves data at 19.2 Kbps over ever-changing unused intervals in the voice channels. If all the channels are used, the data is stored and forwarded when a channel becomes available. CDPD was developed as a wireless extension to an IP network and uses the four octet (0.0.0.0) address for connections. CDPD networks cover most of the major urban areas in the U.S. and has been deployed by AT&T, Ameritech, GTE, BellAtlantic Mobile and other carriers. By the late 1990s, incompatibility issues had been worked out, and roaming agreements and interoperability between carriers is generally nationwide. CDPD modems are available on PC Cards for laptop and handheld computers.

A technology that separates data files into many "packets" and sends them through empty channels of existing voice networks. It allows users to send and receive data from anywhere in a particular coverage area at any time, quickly and efficiently.

Cellular Digital Packet Data. A wide-area, wireless data networking technology. CDPD is an open standard for using existing cellular networks for wireless data transmission. Packets of data are sent along channels of the cellular network.

Cellular Digital Packet Data. The technique of transmitting information over a digital cellular network.

Data transmission technology developed for use on cellular phone frequencies. CDPD uses unused cellular channels (in the 800– 00MHz range) to transmit data in packets. This technology offers data transfer rates of up to 19.2Kbps, quicker call set up and better error correction than using modems on an analogue cellular channel. Transmits packets of data over cellular networks without interfering with voice transmission.

Cellular Digital Packet Data. An add-on technology that enables first-generation (1G) analog systems to provide packet data. Today, 2.5G and 3G systems are replacing CDPD.

Developed by Nortel Networks, Cellular Digital Packet Data (CDPD) is an open standard for supporting wireless Internet access from cellular devices. CDPD also supports Multicast, which allows content providers to efficiently broadcast information to many devices at the same time.

Telecommunications companies can use CDPD to transfer data on unused cellular networks to users. If one section, or "cell," of the network is overtaxed, CDPD automatically allows for the reallocation of resources.

Cellular Digital Packet Data. A digital overlay on AMPS analog cellular networks, it reuses the unused channel capacity in a voice cellular network for packet switched data, either on dedicated data channels or hopping between idle voice channels. It was first deployed in the US in 1993.

A technology for transmitting data over analog cellular networks. Requires a special modem and the wireless carriers' network must be upgraded to accommodate such data transmissions.

A telecommunications solution that allows wireless packet switched data connectivity through the existing cellular communications network. In other words, it's wireless data that allows you to access the network.

A technology that allows telecommunications companies to transfer data over existing cellular networks to users.

CDPD stands for Cellular Digital Packet Data. It is also referred to as "wireless IP" and is a method of sending and receiving information via mobile devices. CDPD allows information to be sent in "packets" or blocks over the existing analog cellular network. It is best suited for short, periodic bursts of information. CDPD is a wireless transmission method that uses the analog cellular network, also known as Advanced Mobile Phone System (AMPS). CDPD allows information to be transmitted on idle cellular voice channels.

a digital data transmission technology developed for cellular networks. Operating at 19.2 Kbps, it sends data over constantly changing open intervals in voice channels. If the system is busy, the data is sent when a channel opens up.

Cellular Digital Packet Data. Wide area data network which takes advantage of existing AMPS (US) cellular network by transmitting data packets on unused voice channels. Data is transmitted using RS(63,47) at an effective rate of 14Kbit.

ellular igital acket ata. A technology used to transmit packet data over cellular voice networks at speeds from 300 to 19.2Kbp

(Cellular Digital Packet Data) Packet overlay on analog cellphone network. Provides 19.2 Kbps and deployed by AT&T and several other carriers. See CDPD.

Cellular Digital Packet Data, Paquetes de datos digitales celulares

Cellular Digital Packet Data. An overlay network for transmitting wireless data over first- and second-generation networks.

Cellular Digital Packet Data. Open standard for two-way wireless data communication over high-frequency cellular telephone channels. Allows data transmissions between a remote cellular link and a NAP. Operates at 19.2 Kbps.

Cellular Digital Packet Data; a packet switched data service largely deployed in the USA. The service uses idle analogue channels to carry the packetised information.

Cellular Digital Packet Data. Allows telecommunications companies to transfer data over existing cellular networks to users. CDPD is currently a common choice for wireless data in the US.

Cellular Digital Packet Data. An add-on technology that enables first-generation analog systems to provide packet data. CDPD is an IP network that runs at 19.2 Kbps with throughputs typically less than 10 Kbps. Today, CDPD is being phased out with 2.5G and 3G systems.

Cellular Digital Packet Data. A technology used to send digital data over vacancies in the existing analog voice network. CDPD uses RC4 airlink encryption, so is very secure, and offers theoretical throughput of 19.2Kbps, with real-world applications of around 11-12Kbps.

Cellular Digital Packet Data is a specification for supporting wireless access to the Internet and other public packet-switched networks. Cellular telephone and modem providers that offer CDPD support make it possible for mobile users to get access to the Internet at up to 19.2 Kbps.

cellular digital packet data, a wireless digital transmission technology that is overlaid on an analog cellular network

Cellular Digital Packet Data, a specification that supports wireless access to the Internet or other public networks. It uses packet switching, so a persistent link isn't needed, making it especially useful for mobile devices. CDPD is quickly being replaced by higher-speed services in 2.5G and 3G cellular networks.

Cellular Digital Packet Data. An enhanced packet overlay on analog cell phone networks used to transmit and receive data. This technology allows data files to be broken into a number of packets and sent along idle channels of existing cellular voice networks. CDPD provides 19.2 Kbps and is deployed by AT&T among several other carriers.

A North American standard for transferring packet data over cellular phone channels.

Cellular Digital Packet Data, a protocol designed and deployed over analog wide-area networks (typically AMPS cellular networks). CDPD transparently piggybacks on cellular analog conversations to enable simultaneous voice/data transmission.

Cellular Digital Packet Data technology is used by telecommunications carriers to transfer data to users via unused analog cellular networks. If one part of the network -- a specific geographic area or "cell" -- is overused, CDPD can automatically reallocate network resources to handle extra traffic.

An enhanced system overlay for transmitting and receiving data over cellular networks. Technology that allows data files to be broken into a number of "packets" and sent along open channels of existing cellular voice networks.