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Real Time Octave Analysis — Option 1D1
Standards Conforms to ANSI Standard S1.11 - 1986,
Order 3, Type 1-D, Extended and Optional
Frequency Ranges
Conforms to IEC 651-1979 Type 0 Impulse,
and ANSI S1.4
Frequency ranges (at centers)
Online (real time)
1/1 octave
1/3 octave
1/12 octave
1 channel
0.063 Hz to 16 kHz
0.08 Hz to 40 kHz
0.0997 Hz to 12.338 kHz
2 channel
0.063 Hz to 8 kHz
0.08 Hz to 20 kHz
0.0997 Hz to 6.169 kHz
4 channel
0.063 Hz to 4 kHz
0.08 Hz to 10 kHz
0.0997 Hz to 3.084 kHz
Capture playback
1/1 octave
1/3 octave
1/12 octave
1 channel
0.063 Hz to 16 kHz
0.08 Hz to 31.5 kHz
0.0997 Hz to 49.35 kHz
2 channel
0.063 Hz to 16 kHz
0.08 Hz to 31.5 kHz
0.0997 Hz to 49.35 kHz
4 channel
0.063 Hz to 16 kHz
0.08 Hz to 31.5 kHz
0.0997 Hz to 49.35 kHz
1 to 12 octaves can be measured and
displayed.
1/1, 1/3, and 1/12 octave true center frequencies related by the formula:
()
()
fi
fi
n
+
==
1
2
1
;n 1, 3 or 12;
Where 1000 Hz is the reference for 1/1, 1/3 octave, and 1000 x2
(1/24)
Hz is the reference for
1/12 octave. The marker returns the ANSI standard preferred frequencies.
Accuracy
1 second stable average
single tone at band center
±0.2 dB
Readings are taken from the linear total power spectrum bin. It is derived from sum of each
filter.
1/3 octave dynamic range
2 second stable average, limited by input noise
level
>80 dB (typical) per ANSI S1.11 - 1986
Specifications Agilent 35670A
Real Time Octave Analysis — Option 1D1
1-16