Kst-rx818 fsk frequency modulation module(superheterodyne) Qualifications:: 1.Completely independent module 1 & module 2 2.Module 1: frequency:433.92mhz modulation mode: fsk/ask (modulated through feet) Module 2: frequency: 315mhz modulation: fsk/ask (modulated though feet) 3.Reveive insibility: preced to-100dbm 4.Operating voltage: 5v (+/-10%) 5.Receive band: narrow band 6.Transmit rate: preced to 9.6kbit/s 7.Certification for fcc 3c 8.Pcb length:28.5mm Pcb width: 17mm 9.Space between port and feet: 2.5mm No.1 foot---vcc No.3 foot---ant No.5 foot---cl No.6 foot---data No.8 foot---pdo No.10 foot---pdwn No.247&9---gnd