Nautel NX50, Руководство по эксплуатации и обслуживанию, Страница: 50 / 166

NX50 Operations and Maintenance Manual Operating the transmitter
Page 2-32 Issue 3.3 2016-02-08
Equalizer screens.
The NX50’s exciter includes a fixed equalizer to optimize audio perfomance.
There are three menus available in the tool menu panels -
EQ Frequency
(see Figure 2.17 ),
EQ
Impulse Response
(see Figure 2.18 on page 2-33 ) and
EQ Filter Delay
(see Figure 2.19 on page 2-
34 ). Coefficients are selected based on your channel frequency. All frequencies shown are relative to
the channel frequency.
Figure 2.17: EQ Frequency Response
EQ frequency response
See Figure 2.17 . This panel displays the frequency response of the active exciter’s EQ filter. Displays
the gain of the filter with respect to frequency of the magnitude of the modulating signal. A dashed
line is displayed at the 0 dB level.
Touch on the panel to display a cursor in the approximate area on the trace. The cursor position
(frequency and magnitude) is noted in the upper, right-hand corner of the panel. Touch in other areas
of the tool menu panel to provide a coarse adjustment of the cursor position.
Use the left and right buttons to make fine adjustments.