for prof Ryan

The purpose of the Discussion Board is to allow students to learn through sharing ideas and experiences as they relate to course content and the DB question. Because it is not possible to engage in two-way dialogue after a conversation has ended, no posts to the DB will be accepted after the end of each unit.

In recent years, the FCC and other bodies around the world have been removing spectrum dedicated to analog TV transmission and giving this spectrum for other uses. This tends to be low frequency spectrum that is highly desirable.