4 - 20HOW 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.

Page 65
Image 65
Fluke PM3370B Vertical Menu Bandwidth Limiter, 20HOW to USE the Instrument, Press the ’BW LIMIT’ softkey to turn it on