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Related to EV-DO: Cdma, 1xrtt, LTE, Mobile WiMAX


(EVolution-Data Optimized) A 3G digital service provided by CDMA cellular carriers worldwide such as Verizon and Sprint in the U.S. EV-DO works on EV-DO cellphones as well as laptops and portable devices that have EV-DO modems. Part of the CDMA2000 standards, EV-DO users have experienced data rates up to 800 Kbps typically with more latency than DSL and cable service. EV-DO is also known as "1xEV-DO."

Revisions 0, A and B
Revision 0 of EV-DO provided a data rate of 2.45 Mbps, which was increased to 3.1 Mbps with Revision A (TIA-856 Rev. A). In addition, Revision A is based entirely on the IP protocol.

Revision B (TIA-856 Rev. B) is the "multicarrier" version and supports two or three channels (2x, 3x), which can be combined to increase the data rate for video and other high-speed requirements. There have been several nomenclature variations; for example, 3-channel EV-DO Rev. B has been called "3XRTT," "MC-3X," and "IMT-CDMA MultiCarrier 3X." See CDMA, CDMA2000, WCDMA, LTE and cellular generations.

EV-DO Signal Strength
The "EV" is the EV-DO signal strength on this cellphone, which is only one bar at this moment. The "1X" signal, also one bar, is the standard CDMA voice and text messaging channel. As the phone travels, the strength of the two signals may differ.

References in periodicals archive ?
Rates apply to all Power Vision users and do not change in areas that have been upgraded to EV-DO Revision A.
In addition to the launch of EV-DO Revision A, Sprint also announced CDMA network enhancements that will boost coverage on the Sprint Mobile Broadband Network and iDEN network enhancements in the following areas:
The EV-DO service launch increases the ways Sprint customers can connect when mobile and augments a unique remote access service portfolio consisting of the nationwide PCS 1xRTT network and more than 19,000 Wi-Fi (Wireless Fidelity) access points in prime locations.
The Sprint EV-DO service provides a broadband-like wireless data experience that is up to 10 times faster than 1xRTT service, with average download speeds of 400-700 kbps and a peak rate of up to 2.
Sprint Power Vision users in the 20 upgraded major metropolitan markets should experience significantly faster average upload speeds of 300-400 kbps (compared with 50-70 kbps of current EV-DO networks).
As Sprint's mobile broadband network continues to grow, so does its device portfolio with the addition of the only EV-DO Revision A-capable USB modem.
The upgraded EV-DO Revision A coverage in the Buffalo market will initially be concentrated at the Buffalo Niagara International Airport, and from downtown Buffalo north to North Tonawanda; south to Lackawanna; and east to Harris Hill.
The upgrade to EV-DO Revision A is expected to further drive Sprint's wireless data leadership as customers will be able to use the upgraded network to utilize applications such as all IP video telephony, high-performance push-to-talk (walkie-talkie service), multi-user video conferencing, real-time gaming and video streaming as they become available.
SALT LAKE CITY -- Sprint (NYSE:S) today announced that it has upgraded the Sprint Power Vision Network(SM), the nation's largest wireless broadband network covering more than 174 million people, with the faster EV-DO Revision A technology in the greater Salt Lake City area.
The full-featured Chameleon CTM 152 is a Kyocera-enabled M2M solution designed to leverage EV-DO networks and is the first industrial data modem to integrate the Passport KPC650 PC Card, which performs up to 35 percent faster than competitors according to third party testing(a).
The upgraded EV-DO Revision A coverage in the Pittsburgh market will initially be concentrated at the Pittsburgh International Airport, Pittsburgh's downtown business district, along most of Interstate 79 from Washington to Cranberry, and in and around New Castle and Butler where wireless data demand is highest, and will expand from there to include Sprint's entire market footprint.