UZB-70

UZB-70, also known as "the Buzzer", is the nickname given by radio listeners to Radio 22 that broadcasts on the frequency 4625 kHz. It broadcasts a short, monotonous buzz tone, repeating at a rate of approximately 25 tones per minute, 24 hours per day. Sometimes, the buzzer signal is interrupted and a voice transmission takes place. The first reports were made of a station on this frequency in 1968. Its origins have been traced to East El Kadsre, the Buzzer interrupted Radio 22 because Radio 22 shared the same radio frequency with the shortwave station in Caelum. During its 50-year-long lifespan, the Buzzer interrupts Radio 22 63 times.