Agilent InfiniiVision 2000 X-Series Oscilloscopes User's Guide

Trigger Mode/Coupling 10Note that Trigger Coupling is independent of Channel Coupling (see “Tospecify channel coupling" on page 57).To enable or disable trigger noise rejectionNoise Rej adds additional hysteresis to the trigger circuitry. By increasingthe trigger hysteresis band, you reduce the possibility of triggering onnoise. However, this also decreases the trigger sensitivity so that a slightlylarger signal is required to trigger the oscilloscope.1 Press the [Mode/Coupling] key.2 In the Trigger Mode and Coupling Menu, press the Noise Rej softkey toenable or disable.To enable or disable trigger HF RejectHF Reject adds a 50 kHz low- pass filter in the trigger path to remove highfrequency components from the trigger waveform.0 dB-3 dBPassBandDC50 kHzYou can use HF Reject to remove high- frequency noise, such as AM or FMbroadcast stations or noise from fast system clocks, from the trigger path.1 Press the [Mode/Coupling] key.2 In the Trigger Mode and Coupling Menu, press the HF Reject softkey toenable or disable.Agilent InfiniiVision 2000 X-Series Oscilloscopes User's Guide 135