User Manual LW120
change the state to on for more than one modulation option.
The functional groups in the Modulation Panel are divided to three
parts: Frequency Modulation, FSK and Sweep. These groups are
described below.
Figure 5-52. The Modulation Panel
Frequency Modulation
ramp, which could be selected from a built-in lookup table.
nt shapes. To access the required
parameter, click on the button below parameters sub-group until the
LED next to the required parameter turns on. The value that is
associated with the lit LED is displayed on the digital display. You can
use
e
The Frequency Modulation group contains parameters for controlling
the sample clock. To turn the FM function on and off, click on the
State button in this group. There are sub-groups in the FM block:
Parameters, Shape, Mode and Slope.
Shape
– Determines how the frequency will change. There are four
standard patterns that are built into the instrument: sine, triangle,
square and
The arbitrary waveform shape must be loaded to the instrument from
an external application, or from the FM Composer. Information on the
standard and arbitrary FM functions is given in Chapter 3 of this
manual. Click on the button next to the required modulating waveform
shape to select it.
Parameters
– Allow adjustment of waveform parameters that are
selected from the Shape sub-group. Notice that the parameters are
changing as you select differe
the dial, keyboard, or the [
↑
] [
↓
} keys to adjust the readout to th
req
to
uired setting After you modify the reading press Execute
ArbExplorer 5-19
