Table of Contents
Advertisement
Chapter 5, FRONT PANEL OPERATION
follows:-
CENTER FREQUENCY
This control may be set to any value between 0.5 Hz and 150.00 kHz. Adjustment is
faster using the Keypad or Active Cursor controls - see section 4.1.04.
FREQUENCY SPAN
This control defines the maximum frequency span that will be applied to the
oscillator signal. For example, when set to ±100.00 Hz, the change will be
±100.00 Hz about the quiescent level.
CENTER VOLTAGE
This control sets the input voltage corresponding to the quiescent oscillator
frequency.
VOLTAGE SPAN
This control sets the range of input voltages that will be translated into the set
frequency span.
FILTER CONTROL
The VCO control signal can be filtered by a simple digital low-pass FIR filter before
being applied to the oscillator, which can be useful for eliminating noise or glitches
on the signal. This control adjusts the filter; when set to 0 the filter is turned off; as
the number is increased, increased filtering is applied.
VCO ENABLED
This control turns the VCO control on and off
Pressing the Previous Menu key returns control to the Oscillator Menu.
5.3.14 Auto Functions Menu
When Main Menu 1 is displayed, pressing a key adjacent to the Auto Functions item
accesses the Auto Functions menu, which is shown in figure 5-18
Figure 5-18, Auto Functions Menu
This menu has five controls for activating the auto functions built into the
instrument. Note that once these functions complete, the Auto Functions menu is
replaced by the Main Display. The functions operate as follows:-
5-25
Advertisement
Table of Contents
