Larson Davis 831, User Manual

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Model 831 Manual Frequency Response A-49
FIGURE A-28 Noise of Model 831 with 377B02: 0 dB Gain, Normal Range
Typical Noise of Model 831 with 377B02 Microphone, 0 dB Gain, Normal Range
-10
-5
0
5
10
15
20
25
30
35
40
8.
0
10.
0
12.
5
16.
0
20.
0
25.
0
31.
5
40.
0
50.
0
63.
0
80.
0
100 125 160 200 250 315 400 500 630 800
1000 1250 1600 2000 2500 3150 4000 5000 6300 8000
10000 12500 16000 20000
Frequency (Hz)
No
ise (
d
B S
P
L
)
Electronic Noise Total Noise
Microphone
Noise