Agilent Technologies InfiniiVision 5000 Series Podręcznik Użytkownika Strona 89

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Triggering 4
InfiniiVision Oscilloscopes User’s Guide 89
LF Reject
Low-frequency reject (LF reject) adds a high-pass filter with the 3-dB point at 50 kHz. LF
reject removes low-frequency signals, such as power line noise, from the trigger path.
1 Press [Mode/Coupling]&Coupling&LF Reject.
Noise Rejection
Noise Rej adds additional hysteresis to the trigger circuitry. By increasing the trigger
hysteresis band, you reduce the possibility of triggering on noise. However, this also
decreases the trigger sensitivity so that a slightly larger signal is required to trigger the
oscilloscope.
1 Press [Mode/Coupling]&HF Reject.
3 dB down point
Pass
Band
0 dB
50 kHz
DC
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