Fluke 5502A, Operator'S Manual

Page: 339 / 378

SC300 Oscilloscope Calibration Option
Calibrate the Pulse and Frequency Response on an Oscilloscope
10
10-21
4. Increase the frequency to 60 MHz (for 100 MHz instruments), or 150 MHz (for
200 MHz instruments). To key in 60 MHz, push

and then push

.
5. Continue to increase the frequency slowly until the waveform decreases to 4.2
divisions, as shown below.
To increase the frequency slowly, fine-tune it with the rotary knob. To do this, push

to put a cursor in the Output Display. Push

again to put it in the
frequency field, and use the

and

keys to move it to the digit you will
change. Then turn the rotary knob to change the value.
Continue to make small adjustments in the frequency until the signal drops to 4.2
divisions. At 4.2 divisions, the signal is at the frequency that corresponds to the -3 dB
point, see below.
gl010i.bmp
6. Push

to remove the input signal.
7. Do this procedure again for the channels on your oscilloscope that have not been
done.