Have short waves become a necessary step to obtain an FM frequency? For several weeks “Rádio Clube de Ribeirão Preto” in Sao Polo has been broadcasting on 15415 kHz.
It is one of the 7 radio stations and a TV channel operated by “Sistema Clube de Comunicação” in Ribeirão Preto and São Carlos. Telecommunications regulations in Brazil offer “AM” stations (including medium wave) to exchange their AM license for an FM frequency.
We seemed to have forgotten that the short wave was also amplitude modulated, therefore AM! This seems to be the logic applied by the country’s radio communications officials.
Is it to celebrate the 100th anniversary of “Rádio Clube de Ribeirão Preto” or to benefit from the generosity of the law that Sistema Clube de Comunicação is putting its old shortwave transmitter back into service to broadcast a program “Rádio Clube de Ribeirão Preto”
The company owned station PRA-7, the first radio station inside Brazil, which was founded on December 23, 1924. There were at that time 7 stations in Soa Paulo but none outside of Soa Paulo. the old capital. PRA-7 “Radio Club de Ribeirão Preto” was the only one in Ribeiro Preto from 1924 to 1953 before the arrival of Radio 79.
Around 1935, the station operated on a new frequency of 670 kHz, or 447 meters, with 1000 watts. The “Radio Precision and Scientific Research Laboratory” was created, obtaining federal authorization to carry out scientific experiments in broadcasting and research on video and audio transmission, i.e. television. The authorization therefore includes the authorization for the installation of a shortwave transmitter station, under the code “PRH-7”
On May 10, 1938, PRH-7 became the first Brazilian shortwave station and on January 28, 1956, the “Radio Palace” was inaugurated, the first building in Brazil built exclusively to house a radio station. A radio house where a floor had already been built for a future television!
It was in 1979 that Club became Sistema Clube de Comunicação, the company’s headquarters is located at Av. Nove de Julho, 606 Higien-polis – RIBEIRAO BLTO.
It should be noted that it is already this frequency of 15415 kHz that the station used in the 1950s.
Thanks to the reactivation of its shortwave transmitter, the station can become a priority to obtain an additional FM frequency given that Club AM has already benefited from the migration: it began broadcasting in February 2018 on 96.7 FM Club 1 until in December 2022 before having the license to migrate Club AM to 83.1 MHz.
Michel Fremy‘s Facebook Page Radio Magazine (2024-03-03)