Tabor Electronics 5251, User Manual, Page: 73 / 298

3
ArbConnection
The Control Panels
3-21
The Modulation
Panels
The Modulation functions were designed over five separate panels,
as shown in Figures 3-13 through 3-17. The panels are invoked by
pressing the Modulation header and then one of the modulation
panels that appear below it (Figure 3-12). These panels provide
access to the modulation functions. The modulation functions that
are available on these panels are: FM, AM, Sweep, ASK/FSK/PSK
and Frequency Hop.
The Modulation Group is common to all modulation panels. It
contains an array of buttons that select the appropriate modulation
scheme. It also provides access to the CW (Carrier Waveform)
frequency setting. The CW frequency parameter is common to all of
the modulation functions. The Baseline options control the level of
which the carrier will reside when in idle mode (not modulated).
Figure 3-12, the Modulation Panels
FM
The FM group contains parameters for controlling the frequency
modulation function. To turn the FM function on and off, click on the
FM button in the Modulation group. The various controls in the FM
group are described below.
Standard FM Parameters
Allow adjustment of the parameters that are associated with the
standard modulating waveform. The controllable parameters are
Modulation, Deviation and the Marker Frequencies.
Mod. Wave
Defines the shape of the modulating waveform. There are two basic
options: Standard waveforms and Arbitrary waveforms. If you do
not need exotic waveforms, you can use one of the built-in standard
wave shapes: Sine, Triangle, Square, or Ramp. These waveforms
can be adjusted for their frequency and deviation range. On the