Yamaha TX-580RDS Owner's Manual - Page 5

Connecting the indoor FM antenna *If you connect an outdoor FM antenna to this unit, do not connect the indoor FM antenna to this unit. Connecting the AM loop antenna 2 1 3 Orient so that the best reception is obtained. * The AM loop antenna should be placed apart from the main unit. The antenna may be hung on a wall. * The AM loop antenna should be kept connected, even if an outdoor AM antenna is connected to this unit. Ⅵ Optional outdoor FM antenna Consult with your dealer or authorized service center about the best method of selecting and erecting an outdoor FM antenna. The choice of the feeder cable is also important. Flat ribbonshaped twin-lead cable performs well electrically, and is cheaper and somewhat easier to handle when routing it through windows and around rooms. Coaxial cable is more expensive, does a much better job of minimizing interference, is less prone to the effects of weather and close-by metal objects, and is nearly as good a signal conductor as feeder cable, particularly for foam-type coaxial cables. Coaxial cable is somewhat more difficult to install at the point where the cable enters the building. If coaxial cable is selected, make sure the antenna is designed to be used with that type of cable. * Use a 75-ohm/300-ohm antenna adapter (not included) or a 75-ohm antenna adapter (not included) for connections. 300-ohm feeder cable 75-ohm coaxial cable 75-ohm/300-ohm antenna adapter 75-ohm coaxial cable 75-ohm antenna adapter 300-ohm feeder cable 75-ohm coaxial cable Notes for FM antenna installation q To minimize automobile ignition noise, locate the antenna as far from heavy traffic as possible. q Keep the feeder cable or coaxial cable as short as possible. Do not bundle or roll up excess cable. q The antenna should be at least two meters (6.6 feet) from reinforced concrete walls or metal structures. 5