... bit rate encoding 3.720*576(PAL), 720*480(NTSC) 4.4* CVBS in, 1*ASI in, 1*RF in Product ... audio *4Sample rate48KHzBit rate64kbps, 96kbps,128kbps, 192kbps, 256kbps, 320kbpsDVB-C modulator sectionStandardJ.83A , J.83B, J.83CMER≥42dBRF frequency30~960MHz ... NMSLanguageEnglishGeneralPower supplyAC 100V~240VDimensions250*268*44mmWeight3.6kgsOperation temperature0~45°C 4*CVBS-DVB-C Encoder Modulator