Product Overview Voca encoder modulator is Voca’s a all-in-one device integrating MPEG2 encoding and modulating to convert audio/video signals into ATSC RF out. It support 4 HDMI inputs optional, and its pay-as-you-grow modular design (maximum support 8 HDMI inputs) and flexible configuration are making it extremely scalable, very reliable with high performance. The signals source could be from STB, satellite receiver, closed-circuit television cameras and antenna etc. Its output signal is to be received by TVs or STBs etc. Key Features Support 4 or 8 HDMI channels input Support MPEG2 video encoding Support 1080P/I,720P, 576I , 480I video resolution Support low latency(50~1000ms) Support MPEGI layer 2, AAC, and DD AC3 audio encoding Support CC (Closed Caption), EIA 608 Support LCN DVB-C/T/ATSC/ISDB-T RF out in one device, Modulation dynamic switching Each channel support 1 DVB-C/T/ATSC/ISDB-T output option Control via web-based NMS, and easy updates via web ATSC Modulator Section Standard: ATSC A/53 Constellation: 8 VSB RF output level:-63~-16dBm (44~91dBµV),1dB step MER:≥35dB RF frequency: 100~1000MHz, 1KHz step RF output level:-63~ -16dBm(44~91 dBµV), 1dB step DVB-C Modulator SectionStandard: J.83A (DVB-C), J.83B MER:≥35dB RF frequency:100-1000MHz, 1KHz stepRF output level:-48~ -10dBm, 1dB stepSymbol rate:3.000~7.000Msps adjustableConstellation:J.83A(16/32/64/128/256QAM),J.83B(64/ 256QAM)Bandwidth:8M/6M