Tektronix RSA6100A Series, Руководство пользователя

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Taking Measurements > Measurements Available Measurements
Measurements for FM modulation
Measurement Description
+Pk
Positive peak frequency deviation.
–Pk
Negative peak frequency deviation.
RMS RMS value of the frequency deviation.
Pk-Pk/2 Peak-to-peak frequency deviation divided by 2.
Pk-Pk Peak-to-peak frequency deviation.
xxx
Measurements for PM modulation
Measurement Description
+Pk Positive peak phase deviation.
–Pk Negative peak phase deviation.
RMS RMS value of the phase deviation.
Pk-Pk Peak-to-peak phase deviation.
xxx
Pulse Measurements
Measurement Description
Average ON Power The average power transmitted during pulse on.
Peak Power Maximum power during pulse on.
Average Transmitted Power The average power transmitted, including both the time the pulse is on and the time
it is off, and all transition times.
Pulse Width The time from the rising edge to the falling edge at the –3 dB / –6 dB level (50%) of the
user selected 100% level. Level is user selectable for Volts or Watts.
Rise Time The time required for a signal to rise from 10% to 90% (or 20% to 80%) of the user
selected 100% level.
Fall Time The time required for a signal to fall from 90% to 10% (or 80% to 20%) of the user
selected 100% level.
Repetition Interval
The time from a pulse rising edge to the next pulse rising edge.
Repetition Rate The inverse of repetition interval.
Duty Factor (%) The ratio of the width to the pulse period, expressed as a percentage.
Duty Factor (Ratio) The ratio of the pulse width to the pulse period.
Ripple Ripple is the peak-to-peak ripple on the pulse top. It does not include any preshoot,
overshoot, or undershoot. By default, the
fi rst 25% and the last 25% of the pulse top is
excluded from this measurement to eliminate distortions caused by these portions of
the pulse.
If the Amplitude units selected in the Amplitude panel (affects all amplitude measurements
for the analyzer) are linear, the Ripple results will be in %Volts. For log units, the Ripple
results will be in %Watts. The default for the general Units control is dBm, so the Ripple
results default is %Watts.
See also
Ripple (see page 391) .
RSA6100A Series Real-Time Spectrum Analyzers Help
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