18
│ 3 Using the system
Various filter limits are available for adjusting the bandpass. The
bandpass must be at least 300 Hz wide.
Information about the available filter limits can be found in
3.4.2.2
Activating the notch filter
When the notch filter is activated, the mains frequency (50 Hz or
60 Hz) is filtered out. This eliminates the influence of current-car
-
rying lines on the noise.
Fig. 12:
Filter
view
Top right:
notch filter (
here:
50 Hz)
Bottom left: lower filter limit (
here:
500 Hz)
Bottom right: upper filter limit (
here:
3000 Hz)
The symbol for the upper filter limit is inverted, which means that
this filter limit can be adjusted.
The main view is open.
1. Press the Filter key. The
Filter
view appears.
2. Change the settings.
a) Keep pressing the Enter key until the symbol in front of the
filter you wish to change is inverted.
b)
For the filter limits:
−
Press the Up key to increase the value.
−
Press the Down key to lower the value.
For the notch filter:
−
Press one of the arrow keys to change the setting.
3. Press the Filter key to apply the settings. The receiver will
switch back to the main view.
