Specifications

Chapter 2 Performance Verification Test RIGOL
DS2000 Performance Verification Guide
2-5
Bandwidth Test
Specification:
Amplitude Loss -3 dB to 1 dB
Explanation:
Amplitude loss (dB) = 20×lg
(Vrms2/Vrms1)
.
Test device: Fluke 9500B
Test Procedures:
1) Connect the active head of Fluke 9500B to CH1 of the oscilloscope, as shown in figure
below.
2) Enable the Fluke 9500B and set the output impedance to 1 MΩ.
3) Configure the oscilloscope:
a) Press CH1 in the vertical control area (VERTICAL) at the front panel to enable CH1.
b) Rotate HORIZONTAL SCALE to set the horizontal time base to 200 ns.
c) Rotate VERTICAL SCALE
to set the vertical scale to 100 mV/div.
d) Rotate HORIZONTAL POSITION
and VERTICAL POSITION to set the
horizontal position and vertical position to 0 respectively.
e) Rotate TRIGGER LEVEL to set the trigger level to 0 V.
4) Output a sine signal with 1 MHz frequency and 600 mVpp amplitude from Fluke 9500B.
5) Press MENU  Vrms at the left of the screen to enable the root mean square
measurement function of the oscilloscope. Read and record Vrms1.
6) Output a sine signal with 200 MHz frequency (100 MHz for DS2102; 70 MHz for DS2072)
and 600 mVpp amplitude from Fluke 9500B.
7) Rotate HORIZONTAL
SCALE of the oscilloscope to set the horizontal time base to 5
ns.
8) Press MENU  Vrms at the left of the screen to enable the root mean square
measurement function of the oscilloscope. Read and record Vrms2.
9) Calculate the amplitude loss: amplitude loss (dB) = 20×lg
(Vrms2/Vrms1)
.
10) Keep the other settings of the oscilloscope unchanged and set the vertical scale to 200
mV/div and 500 mV/div respectively.
11) Output sine signals with 1 MHz frequency and 1.2 Vpp/3 Vpp amplitude from Fluke 9500B
respectively.
12) Repeat step 5).
13) Output sine signals with 200 MHz frequency (100 MHz for DS2102; 70 MHz for DS2072) and