SM-4000 series is a digital synthesis function generator/frequency counter with microprocessor SM-4000 series is a digital synthesis ... -4010/SM-4020/SM-4040/SM-4080/SM-4120 Output Frequency sine and square100uHz~10MHz/100uHz~20MHz/100uHz~40MHz100uHz~80MHz/100uHz ... -pOutput Waceforms Sine,Square,Pulse,Triangle,Ramp,TTL pull,Sweep,FM,AM,Burst,FSK,PSK and others.more than twenty waveforms. Signal ...