EVDO Rev A Compatibility with Existing EVDO Cards |
| Friday, 28 July 2006 | |
Will my Existing KPC650, S620, PC5740, V620, AirCard 580, PC5220, or V640 be compatible with EVDO Rev A when Verizon and Sprint launch it?Yes!When Verizon launches EVDO Rev A, the current PC5220, Novatel V620, Sierra AirCard 580, Kyocera KPC650 and the PC5740 will be compatible with the new network. When Sprint launches EVDO Rev A, the current AirCard 580, Merlin S620 and PC5740 will be compatible with the new network. EVDO Rev A is backwards compatible with EVDO Rev 0 Cards (all the cards listed above). That means the cards will NOT operate at EVDO Rev A Speeds, but rather they will continue to operate at EVDO Rev 0 speeds. Will there be a firmware upgrade to make the older cards EVDO Rev A compatible? No. EVDO Rev A requires a completely new chipset that cannot be replaced in a firmware upgrade. When will EVDO Rev A be Available? Some are saying early 2007, some are saying 2008 or beyond. It is a lot of work for the carriers to upgrade each cell tower to support EVDO Rev A. They are not even done with EVDO Rev 0, so we are expecting it to take longer. However, we think that the first carrier (Verizon or Sprint) to actually have a large city converted AND be the first, will have bragging rights and get a lot of good PR. When will EVDO Rev A Cards be available? We are expecting EVDO Rev A Cards to be available from the carriers starting late 2006. Keep in mind, that if you have a EVDO Rev A card, it will not operate faster, until the carrier upgrades the cell towers in the areas you need access AND they enable EVDO Rev A. EVDO Rev 0 Current Specs: Download: 2.4Mbs (Average 400Kbps - 700Kbps) Upload: 144Kbps (Average 50Kbps - 100Kbps) EVDO Rev A Current Specs: Download: 3.1Mbs (Average 800Kbps - 1.0Mbps - guessing) Upload: 1.8Mbps (Average 500Kbps - 700Kbps - guessing) From Qualcomm: EV-DO Rev. A is a leading-edge wireless technology, which adds even higher data rates and higher system capacity, as well as improved QoS support for low-latency packet applications. It is a fully backward compatible standard and remains interoperable with deployed EV-DO networks and devices around the world. On the forward link, the peak data rate increases to 3.1 Mbps while the reverse link speed increases to a peak rate of 1.8 Mbps. The increased data rates on Rev. A's physical layer enable richer applications and services. Rev. A offers higher sector capacity within the same 1.25 MHz, allowing operators to support more users and richer applications. Rev. A has twice the sector capacity of Rel. 0 on the reverse link and 1.2 times the Rel. 0 sector capacity on the forward link. The additional QoS support provided by the Rev. A physical layer significantly reduces latency and improves performance of delay-sensitive applications such as push to chat, instant messaging full multimedia content and voice over Internet protocol (VoIP). The CSM6800 and MSM6800 chipset solutions support Rev. A. As always, Rev. A features are backward compatible to earlier CDMA-based systems, thereby preserving the operator's initial CDMA systems investment and providing a low-risk migration path for existing EV-DO systems. Related Articles:
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| Last Updated ( Friday, 28 July 2006 ) |
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Mac EVDO
