https://rpc.ift.org.mx/vrpc/pdfs/090252648002a7e8.pdf 1969 concession for XEQ-TV Altzomoni], as obtained from the IFT Public Registry of Concessions, placed in the file for station XHTM-TV; the concession for XHTM-TV Mexico City is likewise placed in the file for station XEQ-TV The transmission from Paso de Cortés (Cortez Pass), 13405 feet high, was said to make channel 9 the world's highest television station. [