[1]: Amplitude Loss (dB) = 20 x lg (V
rms
2/V
rms
1); wherein, V
rms
1 is the measurement result of
amplitude effective value at 1MHz and V
rms
2 is the measurement result of amplitude effective
value at full bandwidth.
5.7 Time Base Accuracy Test
5.7.1 Specification
Time Base Accuracy
[1]
Specification
±(5 ppm + 1 ppm
[2]
/year x Number of Years that the
Instrument Has Been Used
[3]
)
NOTE
[1]: Typical.
[2]: Clock Drift.
[3]: For the number of years that the instrument has been used, please calculate it according to
the date in the verification certificate provided when the instrument leaves factory.
5.7.2 Test Connection Diagram
Fluke 9500B
CH1
DHO1000
Figure 5.6 Time Base Accuracy Test Connection Diagram
5.7.3 Test Procedures
WARNING
Before connecting, disconnecting, or moving the test hookup, disable the output of the
signal generator to avoid causing the dangerous voltage.
1. Connect the active head of Fluke 9500B to CH1 of the oscilloscope, as shown in
Figure 5.6
.
2. Output a Sine signal with 10 MHz frequency and 1 Vpp amplitude via Fluke 9500B.
3. Configure the oscilloscope:
Performance Verification Test
Copyright ©RIGOL TECHNOLOGIES CO., LTD. All rights reserved.
DHO1000 Performance Verification
25
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