750MHz output CATV Saw Filter Modulator

Detailed picture Specifications :1, Fixed critical-frequency output of 750MHz;2, Frequency composition Phase Look Loops control Video carrier wave and Audio carrier wave;3, Under the control of micro-computer, the showing of channel LED;4, High quality surface wave filter and helical filter to filter.Technical Parameter : ParametervalueOutput frequency (MHz)47-750RF output level (db)93-113Output impedance (Ω)75Spurious rejection (db)>65Frequency tolerance (KHz)<5Flatness (db)<0.8RF return loss (db)>20V/A carrier power ratio (db)10-20Video modular depth (%)87.5Differential gain (%)≤3Differential phase (°)≤3(ns)Chrominance-luminance time delay inequality<40Video S/N (db)>55Max. BIA of audio frequency (KHz)50Audio S/N (%)1.0Audio S/N (db)>55Power supply (V)AC220VDimension (In)19(W)*7.5(D)*1.75(H)