Features Specifications:Digital CATV Receiver  Digital CATV Receiver Characteristics Item Unit Parameter Input Frequency Range MHz 47 ~ 860 Input Impedance Ω 75 Input Level Range dBmV -20 ~ + 20 Modulate Way - QAM16, 32, 64, 128, 256 Symbol Rate Mb/s 2.0 ~ 7.2 Video Output -  1Vp-p( two ways) 75 Ω (RCA Socket Outlet Frequency Characteristic dB ≤± 0.5( within 5 MHz ) K Modulus % ≤ 4 DG % ≤ 5 DP . ≤ 5 Delay Degree of the Colour Bright ns ≤ 50 Audio Output - L.R or Single Audio 0.775Vrms600 Ω Frequency Characteristic dB ± 0.5 (60Hz ~ 18KHz) Wave Distortion % ≤ 1 Right-left Audio Way Level dB ≤ 0.5 Right-left Audio way Disturb dB ≤ -70 Output Socket Outlet - RCA Data Output - RS-232 (DB9 Nut) Work Temperature +5 ~ + 40 Storage Temperature -10 ~ +70 Power Supply - AC220V/50Hz Online Power W 5 Work Power W 30