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(EVolution-Data Optimized) A 3G digital service provided by CDMA cellular carriers worldwide such as Verizon and Sprint (now T-Mobile) in the U.S. EV-DO works on EV-DO cellphones as well as laptops and portable devices with 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.

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References in periodicals archive ?
EVDO: EVDO (Evolution Data Only) is a telecommunications standard which is an evolution of the CDMA2000 (IS-2000) standard.
The acquisition of the particular business of Airvana, which has been a supplier of EVDO software to Ericsson, was structured as a share purchase, the buyer said.
Some of the newer technologies inducted in the network are: i) GSM mobile 2G, ii) GSM Mobile 3G, iii) Wireline (DSL) Broadband, iv) WiMAX, v) CDMA WLL, vi) EVDO, vii) IP Tax, viii) Digital Satellite Phone Terminal (DSPT), ix) MLLN, x) FTTH / GPON /.GEPON etc
ISLAMABAD, July 14 -- As per latest data compiled by Pakistan Telecommunication Authority (PTA), the subscriber base of WiMax and EvDO services of WLL sector has shown 73 percent growth in the last six months while the subscriber base has jumped from 190,947 in October 2009 to 331,416 in April 2010.
Our current products are focused on widely deployed cellular technologies including CDMA EVDO Rev A, HSPA, WiMAX and LTE.
Taipei, June 23, 2009 (CENS) -- VIA Telecom vows to snatch up half of China Telecom's contracts for 10 million evolution data only (EVDO) cards after commanding a quarter of the mainland China's market for CDMA (code division multiple access) chips.
Free wireless access, using Sprint's EVDO high-speed network, enables users to download from Amazon a selection of over 140,000 books, magazines, and newspapers.
The 4540 Series Power Meters capture, display, and analyze RF signals in the time and statistical domains and sustain a range of technologies including RADAR, GSM, EDGE, CDMA, EvDo, UMTS, WiFi, WiMax, LTE, CATV, OFDM, and MiMO.
The first is internet (1X) and the second is high-speed internet (EVDO).
According to the company, its Wireless Internet service uses next-generation EVDO technology which provides unlimited wireless access to the Internet for customers at speeds comparable to wired broadband connections including cable modem or DSL.
The service connects to the internet through the Verizon wireless EVDO high speed network.