Yes, the beam rotates eastbound first, then westbound. RB 2. Once a beam is transmitted, it travels in a straight line, independent of any forces whatsoever. This means the beam as such during its travel time is stationary in space. Its path is a fixed and stationary true straight line from the earth, provided the transmitter is stationary. [Robert Bennett] and so is the aether.... Please clarify Robert.. Are you perhaps saying the radio beam moves , or rotates like a spoke with the aether? Philip,