Remote control commands
R&S
®
RTE
1319User Manual 1326.1032.02 ─ 20
Usage: Asynchronous command
CALCulate:MATH<m>:FFT:BANDwidth[:RESolution][:VALue] <ResolutionBW>
This command defines the resolution bandwidth.
Suffix:
<m>
.
1..8
math waveform
Parameters:
<ResolutionBW> resolution bandwidth
Range: 0.01 to 160E+6
Increment: 0.01
*RST: 2E+6
Default unit: Hz
Usage: Asynchronous command
CALCulate:MATH<m>:FFT:WINDow:TYPE <WindowType>
Windowing helps minimize the discontinuities at the end of the measured signal inter-
val and thus reduces the effect of spectral leakage, increasing the frequency resolu-
tion.
Various different window functions are provided in the R&S RTE to suit different input
signals. Each of the window functions has specific characteristics, including some
advantages and some trade-offs. These characteristics need to be considered carefully
to find the optimum solution for the measurement task.
Suffix:
<m>
.
1..8
math waveform
Parameters:
<WindowType> RECTangular | HAMMing | HANN | BLACkharris | GAUSsian |
FLATTOP2 | FLATtop2 | KAISerbessel
RECTangular
The rectangular window has the best frequency resolution, but a
poor amplitude accuracy and is recommended for separating
two tones with almost equal amplitudes and a small frequency
distance.
HAMMing
The Hamming window is bell shaped and has a good frequency
resolution and fair amplitude accuracy. It is recommended for
frequency response measurements as well as sine waves, peri-
odic signals and narrow-band noise
HANN
The Hann window is bell shaped and has a slightly worse fre-
quency resolution but smaller sidelobe level than the Hamming
window. The applications are the same.
Spectrum analysis
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