Off-the-air

In telecommunication, the term off-air or off-the-air has the following meanings:

Note: The carrier wave may continue unmodulated or it may be modulated by another signal source, such as a subcarrier.

Also, off-the-air may be synonymous with over-the-air or from-the-air, as in picking up a terrestrial broadcast TV station off-the-air instead of from cable TV. As this usage may be confusing due to the term's other meanings, the terms "over the air" or "on the air" are more standard in the broadcasting industry.

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