C-sáv CA CABAC CAI CAM CAS CASS Cassegrain antenna CAT CATV CAVLC CBR CBP CC CCFL CCIR CCITT CCM CDMA CDMA2000 CE CE-HTML CEC CEI CENELEC CELP CEPT CEPT PR 27 CES CFK CFSMC CGA CGC CI CI+ CICAM CIF cirkuláris polarizáció Clarke-öv Cliff-effektus CIR, C/I CISPR CME CMOS CNR, C/N COFDM COMSAT Conax Conditional Access Module COSPAS COSPAS-SARSAT CPA CPE CPLD CRC CRO CryptoWorks CRT CSS CT1 CT1+ CT2 CTCSS CVBS CW