Chapter 3: Testing Performance
Time Base Accuracy Test
3–24
Time Base Accuracy Test
Specification
Equipment Required
Connections
Procedure
1
Connect the 10 MHz signal source to scope channel 1 as shown in the connection
diagram above.
2 Set up the scope as follows:
a Press Default Setup.
b Press Auto-scale.
c Change the timebase setting to 1 ms/div.
Time Scale Accuracy ±1 ppm peak
Description Critical Specifications Recommended Model/Part
Numbers
10 MHz Signal Source Sine Wave with Amplitude ≤6 Vp-p into 50Ω
Frequency Accuracy better than 0.4 ppm
Output resistance = 50Ω
Agilent E8247C with Opt 520 or
Agilent 82712B with Opt 1E5 or
Agilent 8665B with Opt 004
Microwave Cable Assembly 50Ω Characteristic Impedance
3.5 mm (m) or SMA (m) connectors
Max Frequency ≥18 GHz
Agilent 8120-4948 or
Agilent 11500E or
Gore EKD01D010480
Adapters 3.5mm (f) to Precision BNC Agilent 54855-67604
Scope
Under
Test
Channel 1
10 MHz
Signal
Source
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