Very often with FM towers you'll see one or more rings about a foot in diameter at or near the top. That's the actual antenna, the rest of the structure is the mast. In AM, depending on where the antenna is fed its signal, the height of the tower is in a mathematical relationship with the frequency it's transmitting and the entire structure radiates the signal. So, if this tower is about the same height as the original and has no loop antennas attached, it's AM.
|