IF Adjacent Modulator Introduction It is one economical model of intermediate frequency (IF) modulator elaborately manufactured by our company according to market characteristics in villages and towns. It is applicable to many channels, and features good sideband characteristic, and accurate PLL frequency. It is the modulator that costs almost as low as high frequency (HF) modulator, but gives extraordinarily excellent parameters of performance. Features Equipped with IF SAW filter, it maintains excellent vestigial sideband characteristic. With simple and optimized circuit design, it enjoys higher reliability. With CPU controlled PLL, its carrier frequency is accurate, stable. Video modulation depth, A/V ratio, audio deviation, RF level are all adjustable. Specifications Item Unit Specifications RF Output Frequency MHz 48.25~450 Max Output Level dB 110 V/A Carrier Power Ratio dB 10~30 Spurious Rejection dB ≥60 Freq Accuracy KHz ≤10 Video Video Mod Depth % 87.5 Freq Response Within dB ≤2 Differential Gain % ≤8 Differential Phase ?≤8 C/L Delay ns ≤45 Video S/N dB ≥45 Audio Audio Dev KHz ?0 Audio Freq Response dB ≤1.5 Audio S/N dB ≥55 General Power Supply V 180~240/0.5 Temperature Range ℃ 0~40 Dimensions cm 48.3?4.8?.5