The Bluetooth® specification continues to evolve, thanks to the Bluetooth® Special Interest Group (SIG). Bluetooth® also uses encryption, keeping shared data safe as it travels between devices. To enable sharing over other types of networks requires extensive configuration of the operating system and resources, fit only for administrators or those familiar with networking protocols. The great advantage of Bluetooth® is that it is very easy to establish a network and sharing. Broadcast radius can be reduced by various factors, however, including certain types of building materials, interference or weak batteries. Bluetooth® uses radio frequency (RF) signals and therefore does not require line of sight. Class 1 Bluetooth® broadcasts up to about 328 feet (100 m), while Class 2 has a range of about 33 feet (10 m). SD cards are about the size of a postage stamp.Ī Bluetooth® PAN is very handy for connecting personal devices across relatively short distances. This minimalistic format is more convenient for slimline devices than using a USB Bluetooth® adapter, even when the product can support either. The modem utilizes the SDIO card slot to create a Personal Area Network (PAN).
A Bluetooth® SD card, also called a Bluetooth® SDIO (In/Out) card, is a device that combines the SD format with an In/Out device - in this case, a Bluetooth® modem. They are used in portable devices such as digital cameras, cell phones, personal digital assistants (PDAs), and mobile computers. Secure Digital (SD) cards are removable memory storage cards about the size of a postage stamp.
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