Audio & Highway Advisory Radio Why can I hear 1630 in my car?
The RhodeWAYS Highway Advisory Radio (HAR) system uses low power AM transmitters to provide information to motorists. The transmitted power is limited by Federal Communications Commission (FCC) licensing requirements. Reception in your car can be affected by the following factors: • Time of day the signal travels farther at night. • Type of car radio/antenna some systems are more sensitive • Roadway overpasses and other highway obstructions can attenuate the AM signal • Interference from other radio stations this interference can increase at night The effective range is two to three miles. Many cars can detect signals up to five miles on a good day with less range at other times.
