Digital Notch Filter (Dnf) Operation; Digital Noise Reduction (Dnr) Operation - Yaesu FT DX 3000 Operating Manual

d
The Digital NOTCH Filter (DNF) is an effective beat-canceling filter that can null out a number of interfering beat notes
inside the receiver passband. Because this is an Auto-Notch feature, there is no adjustment knob associated with this fil-
ter.
A :
dvice
If a very strong interfering carrier is encountered, we recommend you first use the IF NOTCH filter, as it is the most ef-
fective notching tool in the receiver section.
1. Press the [ p/q// ] button to select the "DNF".
2. Press the [ SELECT ] button to choose "ON". The
"DNF" will appear in the display.
To disable the Digital NOTCH Filter, just repeat the
above procedure, pressing the [ SELECT ] button to
choose "OFF" in step 2 above. The "DNF" will turn off,
confirming that the Digital NOTCH Filter is not active.
d
The Digital Noise Reduction (DNR) system is designed to reduce the level of random noise found on the HF and 50
MHz bands, and it is especially effective during SSB operation. By setting the Menu item "110 DNR LEVEL", any of 15
different noise-reduction algorithms can be selected; each of these algorithms was created for dealing with a different
noise profile. You will want to experiment with the DNR system to find the best setting corresponding to the noise cur-
rently being experienced.
1. Press the [ p/q// ] button to select the "DNR".
2. Press the [ SELECT ] button to choose "ON". The
"DNR" will appear in the display.
To disable the DNR system, just repeat the above proce-
dure, pressing the [ SELECT ] button to choose "OFF" in
step 2 above. The "DNR" will turn off, confirming that
the DNR system is not active.
FT 3000 O
DX peraTing
i
nTerFerence
NotcH F
igitAl
N R
igitAl oiSe eductioN
M
anual
( dNF ) o
ilteR peRAtioN
【p/q//】
( dNR ) o
peRAtioN
【p/q//】
DNR Indicator
r
ejecTiOn
[ SELECT ] button
button
DNF Indicator
[ SELECT ] button
button
Page 57