FT-950
Operating Manual
Vertex Standard Co., Ltd.
55
eliminate the incoming interference.
Digital NOTCH Filter (DNF) Operation
The Digital NOTCH Filter (DNF) is an effective beat-cancelling 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 filter.
Advice: If a very strong interfering carrier is encountered, we recommend you first use
the IF NOTCH filter, as it is the most effective notching tool in the receiver section.
1. Press the [MENU] button to enter the Menu mode.
2. Rotate the [SELECT] knob to select Menu item “070 RGEN DNF”.
Advice: Press the [SELECT] knob to toggle the Menu item display between “070
RGEN” and “DNF”.
3. Rotate the [CLAR/VFO-B] knob to select “ON”. The “DNF” icon will appear in the
display.
4. Press and hold in the [MENU] button for two seconds to save the new setting and
exit to normal operation.
To disable the Digital NOTCH Filter, just repeat the above procedure, rotating the
[CLAR/VFO-B] knob to select “OFF” in step 3 above. The “DNF” icon will turn off,
confirming that the Digital NOTCH Filter is not active.
Advice: The Digital NOTCH Filter selection will be memorized independently on each
VFO stack of the VFO-A and VFO-B.
Digital Noise Reduction (DNR) Operation
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 ���071 RGEN DNR”, any of 15 different
noise-reduction algorithms can be selected; each of these algorithms was created for
dealing with a different noise profile, and you will want to experiment with the DNR
system to find the best setting according to the noise currently being experienced.
1. Press the [MENU] button to enter the Menu mode.
2. Rotate the [SELECT] knob to select Menu item “071 RGEN DNR”.
Advice: Press the [SELECT] knob to toggle the Menu item display between “071
RGEN” and “DNR”.