900 MHz Wireless Speakers
Wireless speakers like any other wireless gadget such as cell phones and cordless phones use wireless transmission technology for transmitting video and data, data, which is music in this case. 900 MHz wireless speakers use radio electromagnetic transmission called radio frequency (RF) of 900 MHz. Technically speaking, 900 MHz radio frequency transmission has a wavelength of one foot. The shorter wavelength of 900 MHz has higher energy packed into the signals, which bounces off objects more efficiently (thus permeating an area more completely and evenly) and travels a longer distance. However, the 900 MHz frequency is not the only available bandwidth in the spectrum and there are other frequencies too on which wireless speakers can operate such as 2.4GHz, 5.8 GHz or the 1800 MHz to 1900 MHz frequency bands reserved for cordless communication using the DECT standard.
The wavelength also determines the length of the antenna used by the receiver. 900 MHz wireless speakers usually have an antenna of six inches in length which is half the wavelength. The 900 MHz transmission of wireless speakers provides stronger signal strength and coupled with the half wavelength antennas, this stronger signal strength results in increased range and performance.
900 MHz wireless speakers are commonly found in the market and for them to come live into action and play astounding music, the assembly requires a main speaker unit which combines the loudspeaker with a radio frequency (RF) receiver and a radio frequency transmitter unit. The RF receiver upon receiving the signal from the radio frequency transmitter, boosts the output through it’s built in amplification unit and plays it over the speaker cone of the wireless speakers.
A manufacturer using the 900MHz bandwidth doesn’t require licenses to use that radio frequency spectrum. Since the spectrum is free and deregulated, there are various other electronic gadgets which use 900 MHz RF. Multiple gadgets such as cell phones, microwave ovens used in close proximity and using the same bandwidth gives rise to chances of signal interferences which will result in noises in the music being played.
Whatever be the pros and cons, it’s a pleasure to have a set of 900 MHz wireless speakers set placed anywhere at the convenience of the listener, whether its in the bathroom, in the kitchen or in the bedroom or even outside in the patio or in the garden (if it’s a weatherproof type) and without worrying about wires trailing behind or creating ducts in the walls and ceilings for the wires to pass through.
This can be a great addition to your home theater or home audio speaker system. The normal range of commercially produced 900 MHz wireless speakers falls between 150 to 300 feet. Definitely a boon for video games and mp3 players that you use at home. You can listen to all your music indoor outdoor without running any speaker wire. This is the true beauty of having a wireless speaker system. Think about the possibilities if you also play any musical instruments.
Buying them is a cinch with trusted online retailers like Amazon offering a full range with incentives like discounts and free shipping. If you plan on using these speakers outdoors, the Cables Unlimited SPK-ROCK-DUO Audio Unlimited 900 MHz Wireless Rock Speaker Bundle namely the SPK-ROCK and SPK-ROCK2. For indoor use, the product catalogues go on forever. The RCA WSP150 900 MHz Wireless Speakers and the Audio Unlimited Kabling 900 MHz Wireless Speakers with Remote are available in both pink and black.
Here are links to many specific pages of information to help you decide which type of wireless speaker system is right for your needs.