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4 - 20 HOW TO USE THE INSTRUMENT
VERTICAL MENU BANDWIDTH LIMITER
The Bandwidth Limiter reduces the bandwidth of the vertical channels to 20 MHz.
This is done by activating a filter in the vertical channels. This feature can be used
both in analog mode and in digital mode to suppress high frequency noise. For
repetitive signals and when in the digital mode,
averaging
is the preferred
method to reduce noise without limiting the bandwidth.
- Press the ’BW LIMIT’ softkey to turn it on.
Observe that the displayed line becomes "thinner" as an indication that the
amount of noise is reduced.
The text ’BWL’ appears in the bottom of the screen to indicate that the function is
active.
- Press the ’BW LIMIT’ softkey to turn it off again.