Teledyne T3DSO1000 Programming Manual page 89

MATH
DESCRIPTION
COMMAND SYNTAX
QUERY SYNTAX
RESPONSE FORMAT
EXAMPLE
Digital Oscilloscope Series
FFT_POSITION | FFTP
The FFT_POSITION command sets the vertical
offset of FFT waveform. The unit is related to
the vertical scale type of the current FFT and the
unit of the channel.
The FFT_POSITION? query returns the current
vertical offset of the FFT waveform.
Note:
• This command is only valid when the scale
type is Vrms.
FFT_POSITION <offset>
<offset>:= -24.4*DIV to 15.6*DIV.
Note:
• If there is no unit (V/mV/uV) added, it
defaults to volts (V).
• If you set the offset to a value outside of the
legal range, the center value is automatically set
to the nearest legal value. Legal values are
affected by the Scale setting.
FFT_POSITION?
FFT_POSITION <offset>
<offset>:= Numerical value in E-notation with
SI unit.
• When the Math function is on, the operator is
FFT, and the scale is 10 mV, the following steps
set the offset of FFT waveform to 28 mV.
Step 1: Send command to set the scale unit to
Vrms.
Command message:
FFTU VRMS
Step 2: Send command to set the offset to 28mV
Command /Query
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