Audio Video Transmitter
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 CE LABS CAT5TX CAT 5 HD A V BALUN SYSTEM TRANSMITTER UNIT  US $199.95
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 24GHz Wireless 3W Audio Video Transmitter Receiver US $193.79
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 COMPOSITE VIDEO and DIGITAL STEREO AUDIO TRANSMITTER US $152.79
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 COMPONENT VIDEO AUDIO TRANSMITTER OVER CAT5 SB 6330T US $152.79
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 Component Video Audio Extender Transmitter over CAT5 US $152.78
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 TV Wireless Audio Video Transmitter 2 Receiver 24G IR US $112.00
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 58GHz Wireless Audio Video Transmitter 2 Receiver IR US $110.99
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A Glance At A Few Of The Most Recent Wireless Audio Gadgets
Recently a large number of wireless audio devices have emerged such as latest-generation wireless headphones, iPods, cell phones and wireless amplifier products which promise to eliminate the cord. I will investigate whether or not these products keep their promise to deliver perfect-quality audio. In addition, I will examine the underlying technologies.
Products can be categorized into products with built-in and those with optional wireless ability. Streaming audio products will often have a plug-in slot for adding a wireless LAN card. Latest generation iPods and cell phones already come with built-in WiFi and Bluetooth support.
The Bluetooth protocol is a relatively low-cost option. Still, its pitfalls have an effect on high-quality audio applications and are often overlooked.
1) Limited range
The range of Bluetooth devices is usually only 30 ft. This excludes Bluetooth from multi-room applications.
2) Limited data transmission capacity
Bluetooth reliably supports data transmission rates of approximately 1 Mbps only which is not sufficient for uncompressed CD-quality audio. For that reason Bluetooth uses audio compression. The audio will be degraded to some extent as a result of the audio compression. For this reason higher-end audio equipment usually does not use Bluetooth wireless audio.
3) Audio delay
The audio will experience a delay of no less than 10 ms mostly due to the audio compression which is a dilemma for real-time audio applications but less critical for MP3 players.
4) Lacking multi-headphone support
Bluetooth can not stream to numerous headphones at the same time. This might be a problem in cases where several people like to listen to the same Bluetooth transmitter.
Another widespread protocol is WiFi which supports uncompressed audio but also has drawbacks simultaneously streaming to multiple receivers. Due to the high availability, WiFi is practical for streaming audio from a PC. However, WiFi products have rather high power consumption. For this reason wireless headphones typically do not use this technology.
While newest-generation wireless speakers and wireless amplifier products use proprietary digital technologies, entry-level devices frequently still rely on FM transmission which is noisy and has high audio degradation and high susceptibility to radio interference.
Modern wireless audio protocols eliminate audio degradation by utilizing digital transmission. These frequently also have mechanisms such as forward error correction to deal with interference from other wireless devices.
Advanced wireless amplifier devices support uncompressed digital audio streaming to preserve the original audio quality. Some of these protocols allow streaming to an unlimited number of wireless amplifiers which is convenient for whole-house audio distribution.
The audio latency of these wireless amplifiers is normally between 1 ms and 20 ms. A small-latency amplifier is important for home theater audio. This assures that all speakers will be in sync. Wireless audio transmitter devices typically work at 2.4 GHz or sometimes in the less crowded 5.8 GHz frequency band such as Amphony's wireless audio devices.
These wireless amplifiers also differ in regard to amplifier output power, standby power consumption and audio quality. A high-quality audio amplifier is critical for optimal sound quality. Digital amplifiers generally offer a power efficiency of a minimum of 80% and standby power consumption of less than 5 Watts which keeps them cool during operation and helps save energy. However, some Class-D amps have fairly high audio distortion. Audiophile wireless amplifiers offer an audio distortion of 0.05% or less.
Does this radio module require an Ariel?
Does this radio module require an Ariel, and if so, what kind or can i make one out of wire?
The Transmitter module is http://www.rapidonline.com/1/1/10353-2-4ghz-audio-video-transmitter-module-law-awm651tx.html
And the Receiver is http://www.rapidonline.com/productinfo.aspx?tier1URL=Electrical-Power&tier2URL=Security-Warning-Device&tier3URL=AM-FM-System-Modules&tier4URL=2.4GHz-Audio-video-receiver-module-LAW-AWM650RX&moduleno=124520&kw=2.4GHz+Video+Receiver#
We are on a limited and so would prefer it if it was possible to make our own Ariel
The word is 'aerial'.
Video: The Interactive Angry Birds Christmas Lights Display (crunchgear?)
Eat your heart out, Clark Griswold. This fully interactive Christmas lights
display should erase any doubt that Angry Birds is an ubiqous fixture in pop
culture. Rovio's game was everywhere this year from unofficial Chinese
themeparks, to a cookbooks and mooncakes. Rovio's CMO Peter Vesterbacka's wife
even wore an Angry Birds formal gown to a state gala. But all of those
appearances pale in comparison to this interactive holiday lights creation.
The builder clearly found a niche. This isn't his first go at such a display.
He ported Guitar Hero to Christmas lights in 2009, which allowed for real
games thanks to the Guitar Hero controller. This time around players use a
slingshot-style controller and the cord is even long enough to reach people's
cars where audio is provided over a low-power FM transmitter. But the game is
the same. Pull birds back in anger and let them fly at the evil pigs.
2.4GHz Wireless Audio / Video Transmitter & Receiver
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