RECEIVE EFFICIENCY TESTING SYSTEM OF RADIO DATA SIGNAL AUDIO

摘要

PURPOSE: An apparatus for evaluating the receivability of an RDS(Radio Data Signal) audio system is provided to improve an AF(list of Alternative Frequency) function and a TA-EON(Traffic Announcement Enhanced Other Networks Information) function, the most major functions of an RDS audio system installed in a vehicle, by simulating evaluation for the receivability of the RDS audio system, using RDS signal generators and AM noise generators at a non radio wave room where an influx of external radio waves is shielded. CONSTITUTION: An apparatus for evaluating the receivability of an RDS audio system is composed of RDS signal generators(10A-10E), AM noise generators(20A-20E), signal mixers(30A-30E), antennas(40A-40E), a non radio wave room(100), and a monitoring unit(200). The RDS signal generators(10A-10E) generate various RDS data and output them in the form of signals. The AM noise generators(20A-20E) load AM Broadcast waves on FM broadcast frequencies and output them in the form of signals. The signal mixers(30A-30E) mix the output signals of the RDS signal generators(10A-10E) with the output signals of the AM noise generators(20A-20E). Each of the antennas(40A-40E) radiates the radio wave outputted from each of the signal mixers(30A-30E) in the non radio wave room(100) where a vehicle(300) is located as an experimental object. The monitoring unit(300) consists of a monitor to display the operation states of the RDS audio system and speakers to output various sounds sent from the RDS audio system.