Casella CEL CEL-393 - Manual (Page 49)

1/3 Octave
dB
32.0
31.5
31.5
30.0
29.5
29.0
27.5
27.0
26.0
25.5
25.0
23.5
23.5
23.0
22.0
23.0
22.0
20.5
21.0
20.5
19.0
19.5
18.0
16.0
16.0
13.5
12.5
1/1 Octave
dB
36.0
34.0
31.5
29.0
26.5
24.5
23.0
21.5
17.5
Filter Freq.
Hz
6
8
10
12
16
20
25
31
40
50
63
80
100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
Table 5 Typical self
noise levels in the
filter bands of a
CEL-393B
393 Handbook /45.