I purchased the X10 2.4Ghz camera system a few years ago to be used as a video baby monitor. This system uses a small video camera and what is basically an off the shelf 2.4Ghz video sender and a seperate 2.4Ghz receiver. When the antennas were adjusted properly (they really need to be pointing at each other), the video was watchable. However, there were quite a lot of opportunities for interference that would make actually recording a show transmitted using these devices difficult. Whenever the microwave in the kitchen was in use, there were huge bands of white lines that scrolled up the picture covering 80% of the image! When someone walked between the transmitter and receiver the image would sometimes briefly drop. The 2.4Ghz transmitter for my wireless lan (803.11B) caused a faint constant pulsing of lines in the received picture too.
As my son grew older, I attempted to repurpose the transmitter/receiver to send audio/video from my satellite receiver from the living room to the basement. I encountered the same transmission problems as with the camera, and even when there was no interference, the video quality wasn't great. It looked a little washed out and sort of reminded me of watching a video tape that is a few generations removed from the original.
The technology may have improved in the past few years though.... Your mileage may vary...
- Paul