YOKOGAWA CW140, User Manual, Page: 69 / 292

7-17
IM CW140-E
Common Functions of All Modes
7
●
Low-pass Filter Setting
The low-pass filter can be used in the frequency measurement circuit to
eliminate noise from inverted waveforms and distorted waveforms for
accurate frequency measurement. The filter cuts off frequencies of 300 Hz or
lower.
Key operation
As with frequency source setting, the low-pass filter can be set on page
1/2 of the system setting screen or on the last page of the setup screen in
each measurement mode by pressing the key. The default value is
OFF.
Using the Cursor key, select the item “Low-pass filter.”
: ON
Press either key to select the desired setting.
: OFF
Confirms the selection.
7.5 Frequency Measurement and Low-pass Filters