Measurement Examples
R&S FSMR
1166.3311.12
2.16
E-2
DEMOD
DETECTOR
SELECTION
DISTORTION
& SINAD
3. Measure the harmonic distortion - Choosing the detector
Press the
DEMOD
hotkey.
In the DEMOD menu press the
DETECTOR SELECTION
softkey.
The DETECTOR SELECTION menu is displayed
The instrument is equipped with a wide range of detectors for
measuring modulation signals. The peak detectors are a good
choice for capturing the highest positive or negative peak within the
measurement time, while the RMS and Average detectors are the
best choice for measuring noise and residual modulation. The THD
& SINAD detector measure the distortion of the demodulated audio
signal. All detectors can be used in parallel.
In the DETECTOR SELECTION menu press the
DISTORTION &
SINAD
softkey.
AMPT
UNIT
DIST UNIT
%
DB
Total Harmonic Distortion – Change the Unit to %
Press the
AMPT
hardkey on the frontpanel.
The amplitude settings menu is displayed.
In the AMPLITUDE menu press the
UNIT
softkey.
The measuring receiver UNIT menu is displayed.
In the UNIT menu press the
DIST UNIT % / DB
softkey.
The actual result display for the THD measurement will change from
a “DB” reading to a “%” reading.
Fig.2-12
THD measurement in UNIT %
Summary of Contents for FSMR
Page 1: ...R S FSMR Measuring Receiver Operating Manual Test Measurement Operating Manual 1313 9723 12 01...
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Page 26: ...Contents Preparing for Operation R S FSMR 1155 5047 12 I 1 2 E 2 Fig 1 1 Front View...
Page 28: ...Front View R S FSMR 1166 3363 12 1 2 E 2 Fig 1 1 Front View...
Page 30: ...Front View R S FSMR 1166 3363 12 1 4 E 2 Fig 1 1 Front View...
Page 32: ...Front View R S FSMR 1166 3363 12 1 6 E 2 Fig 1 1 Front View...
Page 34: ...Front View R S FSMR 1166 3363 12 1 8 E 2 Fig 1 1 Front View...
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Page 130: ...Menu Overview R S FSMR 1166 3363 12 3 42 E 3 Menu Overview another Keys MKR Key...
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Page 376: ...Configuration Setup R S FSMR 1166 3363 12 4 19 28 E 2...
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Page 937: ...Contents Error Messages R S FSMR 1166 3363 12 I 9 2 E 1...