Lf Reject; Noise Rejection - Agilent Technologies InfiniiVision 5000 Series User Manual

LF Reject

Noise Rejection

InfiniiVision Oscilloscopes User's Guide
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.
0 dB
3 dB down point
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.
DC
Triggering
Pass
Band
50 kHz
4
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