Radio Signal

A radio broadcast station uses a transmitter to send radio signals radiated from an antenna. A receiver uses an antenna to capture the radio signals. The strength of the signal depends on the following factors:

• The power output, or wattage of the broadcasting station
• The location of the vehicle, or receiver relative to the broadcast tower
• Obstacles between the tower and the receiver
• Atmospheric conditions
• What band, AM or FM the station is broadcasting
• Type of antenna and the ground plane