A O-200 cps frequency converter For audiomodulated radiosonde. MAUSAM, [S. l.], v. 21, n. 2, p. 295–302, 1970. DOI: 10.54302/mausam.v21i2.5390. Disponível em: https://mausamjournal.imd.gov.in/index.php/MAUSAM/article/view/5390. Acesso em: 22 dec. 2025.