Broadcasting System of an Emergency Alert Protocol CAP-PER Using the Standard RDS

This paper describes a proposal and implementation of dissemination system of an emergency alert protocol called CAP-PER (Common Alerting Protocol from Peru), through FM broadcasting using the RDS (Radio Data System) standard. The insertion of the emergency information uses groups 9A and 11A of the RDS, in which the bytes of the emergency protocol CAP-PER enter into the information blocks C and D of the baseband-encoded structure of the RDS, for a FM transmission. In the case of reception, we have developed a module that decodes the received signal from groups 9A and 11A of the RDS to obtain the information of the emergency protocol CAP-PER. Finally, we successfully performed laboratory tests at the INICTEL-UNI and field tests at Arequipa city with the collaboration of TV-Peru broadcasting station.