User`s manual

2. Click on the Config button to bring up the Hi-Res Graphic Filter control window. When used

for the first time, the control window will be the that of the previous Figure 4-48.

3. Click on the New button to draw a new filter. The screen will now appear as follows:

Had you accidentally clicked the New button, you could click on Abort to restore the previous

filter.

4. You should now notice that all the buttons on the control window have been replaced by a

simple Abort botton. Clicking on Abort at any time prior to completing the curve restores the

previous filter.

To draw the new filter curve, you will need to carefully click the mouse cursor on points within

the filter display area which correspond to the desired attenuations at the desired frequencies.

While the mouse click button is held down, the Freq and Atten readouts will be updated as the

mouse is moved; you can use this feature to place points in the filter curve at exact frequencies

and attenuations. When the mouse click button is released, a line segment will be drawn from

the last defined point on the curve to the current mouse cursor position.

For this example, placing points at precise frequencies and attenuations is not required; draw

the curve approximately as shown in Figure 4-52 using mouse clicks.

Note that the very first click always sets the 0 Hz attenuation starting point.

Hint: To advance the frequency a single step move the cursor to the left of the last frequency

position and click to mouse. The curve will advanced 12 Hz at the specified attenuation.

Figure 4-51 New Hi-Res Graphic Filter Display