To Enable Or Disable Trigger Noise Rejection; To Enable Or Disable Trigger Hf Reject - Agilent Technologies 4000 X-Series User Manual

Note that Trigger Coupling is independent of Channel Coupling (see
specify channel coupling"

To enable or disable trigger 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 the [Mode/Coupling] key.
2 In the Trigger Mode and Coupling Menu, press the Noise Rej softkey to

To enable or disable trigger HF Reject

HF Reject adds a 50 kHz low- pass filter in the trigger path to remove high
frequency components from the trigger waveform.
-3 dB
You can use HF Reject to remove high- frequency noise, such as AM or FM
broadcast 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 to
Agilent InfiniiVision 4000 X-Series Oscilloscopes User's Guide
• Video coupling — is normally grayed- out, but is automatically selected
when Video trigger is enabled in the Trigger Menu.
enable or disable.
0 dB
DC
enable or disable.
on page 82).
Pass
Band
50 kHz
Trigger Mode/Coupling
11
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