To Verify Trigger Sensitivity - HP 54645A User's And Service Manual

Testing, Adjusting, and Troubleshooting

To verify trigger sensitivity

To verify trigger sensitivity
In this test, you verify the trigger sensitivity by applying 25 MHz to the
oscilloscope. The amplitude of the signal is decreased to the specified levels,
then you check to see if the oscilloscope is still triggered. You then repeat
the process at the upper bandwidth limit.
Test limits:
Table 7-9 Equipment Required
Equipment
Signal generator
Power splitter
Cable
Adapter
Feedthrough
7-24
Internal trigger
1 mV/div to < 10 mV/div
dc to 25 MHz:
25 MHz to 100 MHz:
10 mV/div to 5 V/div
dc to 25 MHz:
25 MHz to 100 MHz:
External trigger
dc to 25 MHz:
25 MHz to 100 MHz:
Critical specifications
25-MHz and 100-MHz sine waves
Outputs differ < 0.15 dB
BNC, Qty 3
N (m) to BNC (f), Qty 3
50 , BNC connectors (m) and (f)
1.0 div or 2.0 mV
p-p
1.5 div or 3.0 mV
p-p
0.35 div or 3.5 mV
p-p
1.0 div or 10.0 mV
p-p
50 mV
p-p
100 mV
p-p
Recommended
Model/Part
HP 8656B Option 001
HP 11667B
HP 10503A
HP 1250-0780
HP 11048C