Keysight 1000B Series, Руководство по обслуживанию

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32 Keysight 1000B Series Oscilloscopes Service Guide
1
Service
To test trigger sensitivity
This test verifies the trigger sensitivity. In this test, you apply a sine wave to the
oscilloscope at the bandwidth limits. You then decrease the amplitude of the
signal to the specified levels, and check to see if the oscilloscope is still triggered.
Table 10 Trigger Sensitivity Specification
Trigger sensitivity Ch 1, 2, 3, 4 (DC
coupling):
≥ 5 mV/div: 1 div from DC to 10 MHz, 1.5 div from 10 MHz to
full bandwidth
< 5 mV/div: 1 div from DC to 10 MHz, 1.5 div from 10 MHz to
20 MHz
Table 11 Equipment Required for Trigger Sensitivity Test
Description Critical Specifications Recommended
Model/Part Numbers
Signal Generator 100 kHz to 1 GHz at 200 mVrms, 0.01 Hz
frequency resolution, jitter: < 2 ps
Keysight 8648A,
Keysight E4400B, or
Keysight N5181A.
BNC Cable 50 Ω characteristic impedance, BNC (m)
connectors
Keysight 8120-1840,
Keysight 10503A
Type-N to BNC Adapter Type-N (m) to BNC (f) Keysight 1250-0780
50
Ω
BNC Feed
Through Adapter
50
Ω
BNC (f) to BNC (m) feed through
terminator
Keysight 0960-0301