Learn to use a BJT as an amplifier in the common emitter configuration. The GUI for this is located at Electronics -> Transistor -> Transistor amplifier
The input and output waveforms are traced on the oscilloscope using two channels. The gain can be calculated directly using the measure gain button. This experiment can be modified to calculate the bandwidth of the amplifier by varying the frequency of the input waveform and noting the corresponding gains as a function of the frequency.
from SEEL import interface I=interface.connect() #fetch 5000 points each from CH1, CH2 with 2uS between each x,y1,y2 = I.capture2(5000,2) from SEEL.analyticsClass import analytics math = analytics() amp1,freq,phase,offset = math.sineFit(x,y1) #Calculate parameters of input waveform amp2,freq2,phase2,offset2 = math.sineFit(x,y2) #calculate parameters of output print (amp1,amp2,'gain = %.3e'%(amp2/amp1)) #calculate and print gain from pylab import * plot(x,y1) plot(x,y2) show()