How frequently may training messages be broadcast over the TIES terminal?

The correct response indicates that training messages can be broadcast no more than six times in total, with the stipulation that these messages cannot occur more frequently than once per week. This regulation ensures that the broadcasting of training messages is well-structured and does not overwhelm users with excessive information, allowing for adequate retention and understanding of the material presented. This frequency helps maintain the effectiveness of training programs while ensuring that users are not overloaded with training messages too frequently.

Other options suggest different frequencies that either exceed or do not reach the maximum guidelines established for such communications.