Instruction manual

Connect the 50 Ω output of this oscillator to the CH1 vertical input (9) of the BK scope

using the coaxial cable. See Fig. 5.

Figure 5:

Set the AMPL knob full CCW and turn on both the oscillator and scope. Adjust the

function generator for about a 1 kHz sine wave and turn the AMPL knob to the center.

On the Oscilloscope adjust the Time/DIV and Voltage/DIV knob until you see a reasonable

sinewave signal.

Vary all of the controls listed below leaving the parameters of the input voltage constant.

Note the eﬀect on the trace of varying a control and understand why the trace changes in

the way it does. In answering the following questions make sketches of a trace if it will help

your explanation. How does the trace change if:

1. The VOLTS/DIV controls are changed?

2. The TIME/DIV controls are changed?

3. The trigger level voltage is changed? Note that if the trigger voltage is set too high

or too low the trace does not “freeze” but “runs” to the right or the left if the trigger

coupling switch is on AUTO.

4. Next step is to click on the AUTO button. Then rotate the TRIG LEVEL knob in both

directions? Can you make the trace disappear? Explain.

5. The triggering slope changed from + to −? (To change the slope, push the trig menu

button and then push the button next to ”slope” on the screen.)

6. The position controls are changed?

The controls you have just used are the ones most frequently employed in adjusting the

trace.