Since, in this high tension field, the number of cubic inches to 'push off' is enormous, and I would estimate up near a decatillion cubic inches, a fraction of a pound pressure per cubic inch is far more than enough to generate an opposing resistance to push against . This huge field then, or grid, has a great amount of pressure distributed over a large area just like the newspaper analogy - and it resists movement. But the radio wave puts the electric field close enough to the sphere to cause repulsion between the sphere and the grid - causing the sphere to move. After that each fraction of a second, as soon as the craft then moves the slightest bit, a new grid is created and more movement occurs, over and above the initial movement from the preceding one. Therefore, you have an acceleration occurring.
Gravity is an acceleration, and so it mimics gravity.
Movement occurs as long as you provide enough electric field and radio waves with just the right amount of power and frequency deviation.