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Which band prohibits image transmission for amateur operators?

  1. 20 meters

  2. 15 meters

  3. 30 meters

  4. 40 meters

The correct answer is: 30 meters

The prohibition of image transmission for amateur operators is specific to the 30-meter band. This band is allocated for amateur radio use, but it has certain restrictions to minimize interference and ensure the band remains primarily for weak signal communication. The rules governing this band allow only specific modes of communication, and image transmissions, among other digital mode transmissions, are explicitly not permitted. In contrast, the other bands mentioned have more permissive regulations regarding the types of transmissions allowed, including image transfers in certain contexts. Understanding these specific band regulations is important for operators to remain compliant with amateur radio rules and regulations. Hence, the 30-meter band is correctly identified as the one that prohibits image transmission.