CDMACDMA (Code-Division Multiple Access) refers to any of several protocols used in second-generation (2G) and third-generation (3G) wireless communications. As the term implies, CDMA is a form of multiplexing, which allows numerous signals to occupy a single transmission channel, optimizing the use of available bandwidth. The technology is used in ultra-high-frequency (UHF) cellular telephone systems in the 800-MHz and 1.9-GHz bands.
PCMCIAShort for Personal Computer Memory Card International Association, and pronounced as separate letters, PCMCIA is an organization consisting of some 500 companies that has developed a standard for small, credit card-sized devices, called PC Cards. Originally designed for adding memory to portable computers, the PCMCIA standard has been expanded several times and is now suitable for many types of devices. There are in fact three types of PCMCIA cards.
Other Features Of Ubiquam UM-300
105 x 8 x 54 mm
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Type: GSM; Supported Standards: GSM, GPRS, EDGE, 3G, HSDPA, HSPA +; Placement: external; Interface: USB; Power over USB: Yes; Dimensions (WxHxD): 89 x 12 x 45 mm; Weight: 45 g; Additional information: to receive data - 28.8 Mb/s., transmission - 5.7 Mbit/s., connector for external antenna, memory ex...
Type: CDMA; Supported Standards: CDMA, EV-DO Rev A; Placement: external; Interface: USB; Power over USB: Yes; Dimensions (WxHxD): 77 x 16 x 36 mm; Weight: 42 g;...