BNC 725 - Manual (Page 37)

37
Validated Trigger Input Mode (Noise Suppression)
The noise suppression function eliminates false triggers due to noise on the input signal by
requiring the signal to remain high (or low) for a specified duration. If the signal drops out during
that period, the output will remain low and the channel will look for the next input signal. Once an
input signal is deemed “valid,” a pulse of user-specified duration will be sent to the channel
output.
Unlike an analog filter which “smears” the signal edge, this noise suppression function digitally
blocks false triggers, retaining the sharp edges on the real trigger signal.
As with Delayed Pulse After Trigger mode, you have additional controls over the channel.
On the Validate tab, choose:
Minimum duration The minimum length of an input pulse that will trigger the channel