SXG400??????????????????????????????????????????????????????AGC?????????????-12dB????????????? / ???????????220V / 60V?????1?f1=65 MHz?f2=63 MHz?f3=57 MHz??2?????????110dBuV????f1=10 MHz?f2=60 MHz?f3=f2-f1=50 MHz??3?79??112.25 MHz ?743.25MHz?PAL-D???????????4?93??112.25 MHz ?855.25MHz?PAL-D???????????*???SXAG700???????????????XH-SXG400 -750 A 6 RSXG400:???????????SXG:??AGC SXAG??AGC750??????750?750MHz 860?862MHz?A??????B????? 6?????6?60V 2?220VR??????