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The navigation buttons have the following functions:
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PSA Series Tour Map
PSA Series 5 hand-held RF spectrum analyzers: Limit lines
Limit lines on screen
Limit menu
Limit lines and patterns
The limits function* enables lines and patterns to be
displayed for comparison with the swept trace.
Limit lines are simple horizontal lines that can be set to any required
amplitude level.
Limit patterns are derived from tables of level against frequency that are stored as files. They can
include straight or angled lines, and are automatically interpolated
between points. Patterns are created on a PC using PSA-Manager software,
and can use imports from CSV files as well as table and graphical
editing.
Two limit lines or patterns can be displayed
simultaneously.
Limits comparator
In addition to visual comparison, a limits
comparator* can be employed which can be used to halt the sweep, generate
an audible warning or output a pulse, or save the trace within a log
file.
Conditions of above, below, inside or outside
can be defined, and the frequency span for comparison can be restricted
using markers.