Types of Wireless Technology

Infrared

The sensing of light by living things is a universal function. However certain portions of the spectrum of light, mainly those at the extreme end of the spectrum are invisible to the human eye. Infrared, which is located at a portion of the spectrum with wavelengths slightly longer than visible red is one such example. It is not invisible to all eyes, however. Recently it has been discovered that infra red may be used to transmit signals or pulses that could be interpreted by a receiving unit.

Short Wave Radio

Shortwave frequencies oscillate at a rate slower than that of Bluetooth. AM and FM commercial radio signals of today still use this signal. This provides a better signal to noise ratio thereby making blue tooth the medium of choice for data and information transfer, whereas shortwave is better used as a medium for transmitting analog audio.

Bluetooth

Bluetooth operates on a frequency set by an international committee that is assigned to standardize and synchronize the manner in which industrial, scientific and medical devices communicate. With its shorter range and lower power output, this ensures that interference is kept to a minimum.

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