SD standard definition could use that old video sender set. Example at http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Delectronics&field-keywords=Audio%2FVideo%20Sender%20and%20Receiver
I do video work for a community choir and would like to wirelessly send a live video only signal to an older projector.
The more I read about all this the more confused I become.

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