The ITU Radiocommunication Assembly considering 4 that the World Administrative Radio Conference (Geneva, 1979) (WARC-79), allocated the frequencies 20kHz 10.05 kHz, 2.5 MHz I 5 kHz (2.5 MHz I 2 kHz in Region i), 5 MHz I 5 kHz, 10 MHz I 5 kHz, 15 MHz I 10 kHz, 20 MHz I 10 kHz and 25 MHz I 10 kHz, to the standard-frequency and time-signal service.