In addition to the normal-mode analog filtering applied to the 4077's
"LIVE" INPUT CHANNEL (No. 1),
digital filtering
is also provided, with
smoothing constants selectable via the front panel.* The effect of the
digital filter is to remove small unwanted dynamic signal components,
while allowing large-scale fluctuations to pass unaffected.
To set the digital filter for Channel 1, 2, or 3,
1. Display the channel (see Section 2.d).
2. Following the general procedure explained in Section 1.f, enter
"SETUP" mode and step to the "FIL" parameter.
3. Enter a number from 0 through 10. These "filter constants" signify
increasing amounts of automatic digital filtering. Channel 1 is
normally preset to a filter setting of "4."
4. Exit "SETUP" mode by pressing the SETUP button.
2.11
Setting Channel Filters 2.f
* Digital filtering may also be selected for Channels 2 and 3.
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