Vertex Standard FT-950

FT-950

Operating Manual

Vertex Standard Co., Ltd.

Advice: Press the [SELECT] knob to toggle the Menu item display between “067

RGEN” and “NB LVL”.

Rotate the [CLAR/VFO-B] knob to the point where the offending noise is best

reduced or eliminated.

3. Press and hold in the [MENU] button for two seconds to lock in the new setting

and exit to normal operation.

CONTOUR Control Operation

The Contour filtering system provides a gentle perturbation of the IF filter passband,

so as to suppress or enhance certain frequency components, thus enhancing the sound

and/or readability of a received signal.

1. Press the [CONT] button. The LED inside the [CONT] button glows orange. The

[SELECT] knob works as Contour knob.

2. Press the [SELECT] knob to activate the Contour filter. The current “null” (or

“peak”) position of the Contour filter will appear in the CONTOUR indicator on the

display.

3. Rotate the [SELECT] knob to achieve the most natural-sounding audio

reproduction on the incoming signal.

4. Press the [CLEAR] button to move the “null” (or “peak”) position to center.

5. To cancel Contour tuning, press the [SELECT] button once more. The graphic

disappears from the CONTOUR indicator on the display, confirming that the

Contour filter is no longer operation.

Advice:

 The Contour filter selection will be memorized independently on each VFO stack of

the VFO-A and VFO-B.

 The Contour filter’s level (either nulling or peaking) may be adjusted using Menu

item “068 RGEN CNTR LV.” The factory default setting is for a null of –15 (dB).

 The bandwidth over which the Contour filter effect is applied may be adjusted

using Menu item “069 RGEN CNTR WI.” The factory default setting is 10.

 When the optional DMU-2000 Data Management Unit is connected, the Audio

Scope (on the “Oscilloscope” page) is particularly useful when adjusting the

Contour control. Not only can you see the effect of the null/peak of the Contour

system, but you also can see the position of the null/peak with respect to frequency

components of interest on the incoming signal. You may then observe (on the Audio