49
Sweep
General
All waveforms can be swept with the exception of Pulse and Noise. The sweep function allows the
carrier frequency to be swept using small frequency steps from the start frequency to the stop
frequency. There are over 16000 steps and this remains constant for all sweep times and frequency
spans.
Pressing the SWEEP key will apply the currently selected sweep parameters to the currently
selected carrier waveform and the SWEEP key will glow yellow. The screen below shows the effect
of pressing the SWEEP key when sine is the selected waveform.
The Parameters Box now shows the current sweep parameters of
START
(frequency),
STOP
(frequency),
TIME
and
MODE
and
Swp
is shown in the
FCN
field. The
TIME
field also
shows the sweep type. The Graph Box shows the sweep waveform type below a representation of
the swept carrier waveform. The Edit Box contains the selected parameter, in this case start
frequency.
To change the carrier waveform parameters press the highlighted carrier waveform key which will
return the display to the carrier menu as shown below.
Notice that
Swp
still shows in the
FCN
field of the Parameters Box and the SWEEP key still
glows yellow indicating that sweep is still active. To return to the Sweep menu to edit the sweep
parameters press the SWEEP key again. To turn off sweep press the SWEEP key while the Sweep
menu is displayed.
Notice also that there is no
Freq
soft-key and the FRQ field in the parameters box shows
Set by Sweep
. It is still possible to edit amplitude and dc offset.
The following sections discuss the parameter choices for sweep.
