English: Radio antennas on Mount Wilson, San Gabriel Mountains, CA, in winter. Radio transmitting antennas are often located on the highest geographical point in the area, such as mountain peaks, to give them the maximum transmission range, resulting in antenna farms like this. The vertical rods are mainly whip antennas, often base station antennas used by dispatchers for land mobile radio systems for fire, police, ambulance, taxi, and delivery services. The multiple identical antennas strung in a vertical line along towers are VHF collinear array broadcasting antennas for FM and television stations. It sounded like thunder whenever one of the towers shed a hunk of ice.