HP 54540 Series - Defining a Function

Math/FFT Menu
Defining a Function
Defining a Function
The Waveform Math/FFT menu selects and presets any of various operations,
sources, and displayed results.
Function Softkey
The function softkey selects one of the four functions.
Display Softkey
The display softkey turns the selected function on or off. The display of
the functions depends on the display mode in the display menu. When the
number of screens is set to 1, the functions are displayed in one screen.
When the number of screens is set to 2, functions | and 2 are displayed in the
top screen and functions 3 and 4 are displayed in the lower screen. When the
number of screens is set to 4, each functions is displayed in its own area,
starting with function 1 on the top.
Chan/Mem Softkey
A math operand is defined by the chan/mem softkey. The math operators +,
—, x, and vs use two operands, while the math operators magnify, inv, int, diff,
and FFT, use one operand. The chan/mem softkey defines the first operand
of the mathematical operation, or the waveform to be manipulated. If two
operands are required, a second chan/mem softkey is displayed that allows
you to define the second operand. You can define the operand to be any
channel or waveform memory (if there is a waveform stored in that memory).
Operator Softkey
The operator softkey selects any of the nine functions. Continue pressing
the selection softkey until the operation desired is highlighted.
Because math operators are post-processing techniques, functions are
calculated after the data is acquired.
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