Onkyo TX SR501 Owner Manual - Page 23

Connecting Antenna-Continued Connecting an Outdoor FM Antenna If you cannot achieve good reception with the supplied indoor FM antenna, try a commercially available outdoor FM antenna instead. FM 75 Notes: • Outdoor FM antennas work best outside, but usable results can sometimes be obtained when installed in an attic or loft. • For best results, install the outdoor FM antenna well away for tall buildings, preferably with a clear line of sight to your local FM transmitter. • Outdoor antenna should be located away from possible noise sources, such as neon signs, busy roads, etc. • For safety reasons, outdoor antenna should be situated well away from power lines and other high-voltage equipment. • Outdoor antenna must be grounded in accordance with local regulations to prevent electrical shock hazards. See item 14 of the "Important Safeguards" on page 2 of this manual. Using the 75/300-ohm Antenna Adapter The 75/300-ohm Antenna Adapter is not supplied with North American and European models. The 75/300-ohm antenna adapter can be used to connect an FM antenna using either 75-ohm coaxial cable or 300-ohm twin-core flat cable. Connecting 300-ohm Flat Cable 1 Using a screwdriver, loosen the two screws on the adapter, wrap the bare wires around the screws, and then retighten them, as shown. 2 Plug the adapter into the 75Ω socket. Connecting 75-ohm Coaxial Cable 1 Strip and prepare the 75 ohm coaxial cable, as shown. 15 mm 636 mm mm mm ✦ ✦ ✦✦ ✦ ✦ 1/4" 1/8" 1/4" 5/8" 2 Using your fingernails or a small screwdriver, lever the adapter's tabs outward and remove the cover, as shown. 3 Move the small wire inside the adapter from position A to position B, as shown. Position A Wire Position B 4 Insert the central conductor (1), as shown, and use a small pair of pliers to clamp the shielding and outer insulation sections of the cable (2), as shown. ✦ ✦ ✦✦ ✦ ✦ 1 ✦ ✦ ✦ ✦ 2 Make sure the shielding is not touching the central conductor. 5 Refit the adapter's cover, and then plug the adapter into the 75Ω socket. Using a TV/FM Antenna Splitter It's best not to use the same antenna for both FM and TV reception, as this can cause interference problems. If circumstances demand it, use a TV/FM antenna splitter, as shown. TV/FM antenna splitter To AV reciever To TV (or VCR) Connecting an Outdoor AM Antenna If good reception cannot be achieved using the supplied AM loop antenna, an outdoor AM antenna can be used in addition to the loop antenna, as shown. Outdoor antenna (aerial) AM loop antenna Insulated antenna cable AM Outdoor AM antennas work best when installed outside horizontally, but good results can sometimes be obtained indoors by mounting horizontally above a window. Note that the AM loop antenna should be left connected. Outdoor antenna must be grounded in accordance with local regulations to prevent electrical shock hazards. See item 14 of the "Important Safeguards" on page 2 of this manual. 23