Remote control commands
R&S
®
RTP
1447User Manual 1337.9952.02 ─ 12
Various different window functions are provided in the R&S RTP 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.
BLACkharris
The Blackman window is bell shaped and has a poor frequency
resolution, but very good amplitude accuracy. It is recommended
mainly for signals with single frequencies to detect harmonics.
GAUSsian
Good frequiency resolution and best magnitude resolution, rec-
ommended for weak signals and short duration
FLATTOP2 = FLATtop2
The flattop window has a poor frequency resolution, but the best
amplitude accuracy and the sharpest side lobe. It is recommen-
ded for accurate single-tone amplitude measurements.
KAISerbessel
The Kaiser-Bessel window has a fair frequency resolution and
good amplitude accuracy, and a very high sidelobe level. It is
recommended for separating two tones with differing amplitudes
and a small frequency distance.
*RST:
BLACkharris
Usage: Asynchronous command
Firmware/software: Version 3.35 and higher: Use FLATTOP2 or FLATtop2 instead of
FLAT2
Spectrum analysis
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