A project concept. Describes how to modify consumer wireless video link devices for ATV use.
The Transmitter operates with an output of about 1mW (0dbM) into an antenna impedance of 75 ohms. The transmitter is FM, and uses a synthesizer for frequency control. It's output frequencies are user selectable, and are: 2.411GHz, 2.434GHz, 2.453GHz, and 2.473GHz. The transmit Video bandwidth is 4.5 mhz.
The receiver frequency control is also synthesized. It's frequencies of operation are the same as the transmitter, and are user selectable. The receive sensitivity is spec'd at -90dbM for a clear picture (not sure what the s/n ratio would be, I forgot to ask that question). The range is spec'd at 300 feet with the built-in antenna, >2500 feet with an external antenna (no antenna specs there...).
Authored by
Alan Glynn at
PortBridge, Added: 22 Dec 2006
http://www.ipass.net/~teara/atv4.html
