Videonics MX-1 Video Mixer MX1 4-Input synchronized video switcher Digital synchronizer mixes video images from virtually any two sources: cameras, VCRs, live feeds, etc Dual-field Time Base Correction (TBC) auto-matically corrects time base to RS-170A standard Professional quality video (13.5 MHz, 8-bit, 4:2:2, 4 X subcarrier oversampling). Meets FCC broadcast specifications