Wireless Video Transmitter
US $930.00
Suggestions For Finding The Perfect Wireless Audio Transmitter Device For Whole-House Audio Streaming
An increasing number of wireless audio transmitter products promise the ultimate freedom in streaming music all over the home. We will take a look at numerous products and technologies to find out in how far these devices are effective for whole-house audio uses and what to look out for when buying a wireless system.
Running music in your home can be a intimidating task. Many houses are not wired for multi-room audio and getting the music from your living room to your bed room can be quite a problem. There are several technologies solving this problem. These include infrared wireless, RF wireless, wireless LAN (WLAN) and powerline.
Infrared wireless audio products are restricted to line-of-sight applications, i.e. only operate within a single room because the signal is broadcast as infrared light which cannot penetrate walls. This technology is frequently found in wireless speaker kit products.
RF wireless products will broadcast the signal as RF waves. These waves can easily go through walls. RF wireless audio products either utilize FM transmission or digital audio transmission. FM transmitters are the least expensive option. They offer good range but the music signal is prone to audio distortion and static and is extremely susceptible to interference from other wireless transmitters.
Products which employ digital wireless audio transmission use a digital protocol. Such products include transmitters from Amphony. In this protocol, prior to transmission the audio signal is converted to digital data. Some wireless audio transmitters will employ audio compression, such as Bluetooth transmitters which will reduce the audio quality to some extent. Digital wireless audio transmitters which broadcast the audio uncompressed provide the highest audio fidelity.
WLAN products are practical for broadcasting audio from a PC. However, wireless LAN was never designed for real-time audio streaming. As a result, products utilizing WLAN will introduce some amount of delay to the signal. Also, a number of products require to buy separate wireless LAN modules that are plugged into each audio receiver.
Powerline devices utilize the power mains as a medium to send the music. These products typically provide excellent range. On the other hand, they face trouble if there are a number of separate mains circuits in the home. In this situation the signal will have difficulty crossing between these circuits. Powerline products have another problem in the form of power surges and spikes which can cause transmission errors. To avoid audio dropouts, these products will generally have an audio latency of several seconds as a safeguard.
Here are some suggestions for picking the perfect wireless audio system: Try to find a system that can run several wireless receivers from a single transmitter. Ideally an unlimited number of receivers should be supported. That way you don't need to purchase additional transmitters when you start adding receivers in several rooms of your house. Some products have some form of error correction built in which will help guard against dropouts in case of strong wireless interference. Pick a digital RF transmitter to maintain the original audio quality, ideally one with an audio latency of less than 10 ms in case of video or other time-sensitive applications.
Choose a transmitter that has all the audio inputs you need, such as speaker inputs, line-level RCA inputs etc. Choose a system where you can add receivers later on which provide all of the required outputs, e.g. amplified speaker outputs, RCA outputs etc. If you go with a digital audio transmitter, select one with an input audio level control knob to prevent the music signal from clipping inside the transmitter audio converter. This will guarantee optimum dynamic range regardless of the signal level of your equipment.
Check that the amplified wireless receivers have built-in digital amplifiers with low distortion figures. This will keep the receiver cool due to high amplifier power efficiency and provide optimum sound quality. Make sure the receivers can drive speakers with your desired Ohm rating. Choosing a product where the wireless receivers have a small footprint and easy mounting options will help in the course of the set up. Devices which operate in the 5.8 GHz frequency band will have less trouble with wireless interference than devices using the crowded 900 MHz or 2.4 GHz frequency band.
Some tell me the link for wireless Composite video receiver (RF)..?
I hav got many wireless video transmitter circuit.. but cannot find a receiver circuit... pls tel me d link where i can get
I am a Engineering student and This is my mini project... pls dont suggest me to buy a ready made receiver..
They are commonly available ready-built;
you use the transmitter with a conventional (analog) television.
HP Wireless Audio streams audio from your PC, arrives next month for $100 (video) (Engadget)
Yep, HP's on a tear today. In addition to unleashing a trio of redesigned Envy
laptops, a refreshed dm4 and one aggressively priced Ultrabook, it has some
news to share on the accessories front. The outfit unveiled its Wireless Audio
system, which lets you stream audio files from your PC to as many as four
compatible speakers. In terms of setup, that photo up there says almost
everything: you plug a thumb-sized dongle into your USB port and a larger
receiver into the speaker. In the box, you'll also find a software CD to fill
in the missing UI piece. The big caveat here (aside from the relative
messiness of connecting two intermediary pieces of equipment) is that the
system only works with speakers that are compatible with KleerNet's wireless
audio technology. In all, the system uses three frequencies (2.4, 5.2 and
5.8GHz) to cut latency and interference, and also supports 5.1 audio. You can
pair it with up to four speakers, as we said, so long as they're within 100
feet of your laptop. It'll go on sale next month for $100, with one receiver
and transmitter per box. If you're curious, we've ...
wireless video transmitters
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