17
DFN function setting and operation
Short press [DFN] to enter the menu of DFN items. The KEY menu will appear at the bottom of the screen:
Page1:
NR
NR DEPTH
NB
NB WIDTH
NB LEVEL
Page2:
DNF
DNF CENTER
DNF WIDTH
NR: digital noise reduction function switch
NRDEPTH: digital noise reduction depth settings
NB: pulse interference blanking function switch
NBWIDTH: pulse interference blanking width settings
NBLEVEL: pulse interference blanking level settings
DNF: digital trap function switch
DNFCENTER: center frequency point of digital trap
DNFWIDTH: bandwidth of digital trap
DFL function setting and operation
Short press [DFL] to enter the menu of DFL items. The KEY menu will appear at the bottom of the screen:
Page1:
FILTER1
FILTER1
FILTER1
DEFAULT
Digital filter can be adjusted according to usage habits, which can be stored in three filter tags and can be
easily and rapidly brought up when using.
Filter Adjustment Schematic Diagram
The figure shows the adjustment interface of the filter.
Starting frequency and cutoff frequency of filter
can be respectively adjusted to set the width of filter. The calculation formula is as follows (unit: Hz):
Current bandwidth value = filter cutoff frequency - filter starting frequency
Current
bandwidth value
Filter
center
frequency
Filter cutoff
frequency
Filter
starting
frequency
FILTER1
FILTER2
FILTER3
DEFAULT
