Techno Tv : Expert Tech Guide

BASICS Bluetooth – Bluetooth tutorial technology

Bluetooth basics

Bluetooth technology is not new, but in many ways it seems still more than the word buzz than well-understood technology, commonly accepted. You see ads for Bluetooth, PDA, and Laptop-capable phones, and search for websites show all kinds of different devices utilizing this wireless standard. But what’s wrong?


Before entering into technology, said Bluetooth withdraw all itself, and worth it. This term is far less technology than you imagined, and found its roots in European history. The Danish king of 940 to 981 is famous for its ability to help people communicate, name (in English) … Harald Bluetooth. It may be rather unclear, but reference is suitable for wireless communication standards.

Other items that should be investigated are Bluetooth logos. Based on the characters of the alphabet runic (used in ancient Denmark), it was chosen because it seems to be a combination of English language b and asterisks.

Just like 802.11 b / g wireless network system and many cordless phones, Bluetooth devices operate on 2.4 GHz radio signals. The band seems to be rather crowded, and interference between devices may be difficult to avoid. The phone is now offered on the 5.8 GHz band to help improve this, and Bluetooth has taken its own steps to reduce interference and improve the quality of transmission. Version 1.1 of the Bluetooth standard greatly reduces interference problems, but requires a hardware that is completely different from the original 1.0C standard, thus eliminating the opportunity for backward compatibility.

The typical Bluetooth specifications show a maximum transfer rate of 723 Kbps and a range of 20-100 meters (65 to 328 feet – depending on the device class). This speed is a small portion offered by wireless standards 802.11 B or G, so it is clear that Bluetooth does not pose a threat to replace your wireless network. Although very similar to 802.11 in many ways, Bluetooth has never been intended to be a network standard, but does have many practical applications.

Practical application

There are various products that take advantage of Bluetooth capabilities, from laptops and PDAs, to headphones and input devices, and even wireless printer adapters.

Many laptops include an onboard Bluetooth adapter to allow the system to connect to any Bluetooth device outside the box. For laptop or desktop systems that do not have a default adapter, there are many Bluetooth USB adapters available.

Bluetooth supports PDAs allows for wireless synchronization and convenient data transfer.

Headphones can use Bluetooth for two purposes … audio playback and mobile communication. Using something cellular headsets with Bluetooth enabled cellphones allow anyone to be hand-free, as well as free wire.

Logitech, and other manufacturers, also produce input devices that remove cables thanks to Bluetooth. You can add a Bluetooth mouse to your system, or the mouse and keyboard. One advantage that the wireless bluetooth keyboard / mouse combination has a standard RF wireless keyboard / mouse combination is a range. Where most standard RF keyboard / mouse combinations have a range of up to 6 feet; The Bluetooth keyboard / mouse combination will usually have a range of up to 30 feet.

The Bluetooth printer adapter makes a very convenient printer sharing by eliminating the need for cable or special configuration on a typical network. Printing to a compatible cellphone printer

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