Vertex Standard FT-950 Digital Notch Filter DNF Operation, Digital Noise Reduction DNR Operation

FT-950

Operating Manual

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”.

55 Vertex Standard Co., Ltd.