Reference
Bottom Side Description
Set FFT Source to Sets the FFT signal source. Valid input sources
are Ch1 and Ch2 (2-channel instruments),
Ch1 through Ch
4 (4-channel instruments), and
Ref1 through Ref4.
Set FFT Vert Scale to Sets the display vertical scale units. Available
scales are dBV RMS and Linear RMS.
FFT
Set FFT Window to Sets which window function (Hanning,
Hamming, Bl
ackman-Harris, or Rectangular)
to apply to the source signal. (See page 75,
FFT Windows.)
74 TDS3000C Series Oscilloscope User Manual