Posted by Mary Ann Neder | Mar 15, 2010 | Comments 0
A separate Apple document filed with the FCC has disclosed a previously unknown difference in the dimensions between the iPad Wi-Fi and Wi-Fi + 3G models. The document reports, the Wi-Fi + 3G model is 0.3mm taller and 0.1mm wider than the Wi-Fi only model, due to the 3G model’s top antenna panel. This is also in addition to a previously disclosed 0.1 pound difference in weight between the models, which was announced when the iPad was first introduced back in January.
Posted by Mary Ann Neder | Mar 13, 2010 | Comments 1
Both versions of the the iPad, Wi-Fi and Wi-Fi + 3G, have appeared on the FCC’s (Federal Communications Commission) website. Although the user manual, external photos, and other materials are still being withheld at Apple’s request, there are several small discoveries to be made. Both models of the iPad have two Wi-Fi antennas, one that is shared with Bluetooth, and one that is not. These antennas cannot transmit simultaneously, are “fed with different power levels,” and are located in different places within the casing. Exact reason for the dual antenna configuration was not provided but it appears to be for reception diversity, allowing the iPad to decide which antenna is working better and switch between them, opting for the higher power version when needed.