TB 9-6625-160-24
Table 21. OPT 013 or 053 (C MESSAGE WEIGHTING) Audio Filter - Continued
Limits (dB)
Source
Frequency (Hz)
Minimum
Indicated
Maximum
500
-8.5
-6.5
600
-5.7
-3.7
700
-3.7
-1.7
800
-2.5
-0.5
900
-1.6
+0.4
1
k
-0.1
+0.1
1.2 k
-1.2
+0.8
1.3 k
-1.5
+0.5
1.5 k
-2.0
0.0
1.8 k
-2.3
-0.3
2
k
-2.3
-0.3
2.5 k
-2.4
-0.4
2.8 k
-2.9
-0.9
3
k
-3.5
-1.5
3.3 k
-6.2
-4.2
3.5 k
-8.6
-6.6
4
k
-15.5
-13.5
4.5 k
-22.5
-20.5
5
k
-29.5
-27.5
Table 22. OPT 014 or 054 (CCIR/ARM WEIGHTING) Audio Filter.
Source
Limits (dB)
Frequency (Hz)
Minimum
Indicated
Maximum
31.5
-36.5
-34.5
63
-30.5
-28.5
100
-26.4
-24.4
200
-19.9
-18.9
400
-13.9
-12.9
800
-8.0
-7.0
1
k
-6.1
-5.1
2
k
-0.5
+0.5
3.15 k
+2.9
+3.9
4
k
+4.4
+5.4
5
k
+5.6
+6.6
6.3 k
+6.5
+6.7
7.1 k
+6.2
+6.6
8
k
+5.4
+6.2
9
k
+4.1
+4.9
10
k
+2.1
+2.9
12.5 k
-6.6
-4.6
14
k
-11.9
-9.9
16
k
-18.3
-16.3
20
k
-28.8
-26.8
31.5 k
-50.3
-46.3
28