Sony Intros Wireless Video System
February 20, 2003
Madison, WI - Sony has introduced a new MPEG-based wireless camera transmitter and receiver system for remote location and live event video production.
The lightweight wireless transmitter converts the digital video signal into an MPEG-2 MP@ML bit-stream and transmits it at 2.4GHz. Transmission range is up to 2,000 feet from a stationary camcorder or 650 feet from a camcorder moving at 35mph, according to technical descriptions.
The pictures are encoded into an MPEG-2, 12 Mbps stream and transmitted using an error-correcting schemes. The transmitter clips onto the back of nine Sony standard-definition digital camcorders, including the DVW-700 series, 709WS and 790WS Digital Betacam models; Betacam SX and the MSW-900 MPEG IMX camcorder.
The WLL-RX50 receiver inputs 2.4 GHz transmissions and outputs DVB-ASI streams to an outboard decoder. Only receivers with the proper secure encryption key can decode the transmission. The receiver can be located up to 160 feet from a supplied antenna. The antenna cable extends to a maximum of 1,000 feet by adding amplifiers. The BDX-D1000/3 MPEG decoder produces a short system delay of 2.7 frames, but is compatible with the new wireless camera receiver.
The BDX-D1000/3 decoder is scheduled to be available in April, according to industry reports. The WLL-CA50 wireless camera transmitter, WLL-RX50 wireless camera receiver and WLL-BA50 booster amplifier are reported to be available in June.
For more information, visit
www.sony.com
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