How To Enjoy FM Stereo
1. Select stations within range.The best FM fidelity is obtained from stations within a 16-64 km (10-40 mi) range. Beyond 64 km (40 mi), noise and flutter may appear due to the line of sight range limitations of FM signals.
SOLUTION: Reduce the treble response by moving the treble control down (or to the left) in fringe areas. On EQ Radios, slowly slide the 10K control down.
2. Realize that tall structures may interfere. Tall buildings or hills may cause shadows or cancellation of FM signals. This effect is similar to the ghost effect or flutter effect noticed on the television sometimes when airplanes fly in the vicinity. The shadow or cancellation of the FM signal sounds like a pop or momentary hiss.
SOLUTION: Reduce the treble or the 10K setting to a lower volume.
3. Realize that other stations may cause interference.
Although the circuits in Delco (R) receivers are the most advanced available, rare instances occur where a station being listened to is interfered with by another station. This effect only occurs when the stations are almost on the same frequency and certain geographical criteria are present.
SOLUTION: Select another station or switch to a tape.