Product Name: 4 in 1 Qam Modulator Model NO.: UVDH-Q-04 Modulation Method: QAM Encoding: MPEG-4 RF Out: DVB-C Interface: IP Condition: New Certification: CCC, RoHS, ISO, CE Input: 4 Asi Input (or 4 DVB-C/S/-S2 Tuner Input) Constellation: 16qam,32qam,64qam,128qam,256qam Qam: 4 Modulation Standard: DVB-C(En300 429) and Itu-T J.83A/ Itu-T J.83b/ Itu Symbol Rate: 5.0~9.0msps, 1ksps Step RF Output: F Type, 75 Impedance Frequency Range: 48~960 MHz, 1kHz Step Dimension: 482mm