Instruction Manual

Sound Level Meter Types 2245 – Instruction Manual Page 97 of 110
Table A.21 Directional response for the sound level meter with Windscreen UA-
1650, measured in a plane perpendicular to the display and along the
microphone’s axis, 3.15 KHz - 10 KHz
3.15 KHz 3.55 KHz 4 KHz 4.5 KHz 5 KHz 5.6 KHz 6.3 KHz 7.1 KHz 8 KHz 8.5 KHz 9 KHz 9.5 KHz 10 KHz
0° 0.00 -0.01 -0.01 -0.02 -0.02 -0.02 -0.02 -0.02 -0.02 -0.02 -0.03 -0.02 -0.02
5° 0.00 -0.02 -0.01 -0.01 -0.02 0.00 0.00 0.00 -0.03 0.00 -0.05 0.00 0.00
10° 0.02 -0.05 -0.02 0.00 -0.04 -0.01 -0.01 0.00 -0.12 -0.07 -0.17 -0.01 -0.04
15° 0.04 -0.09 -0.02 0.01 -0.08 -0.05 -0.07 -0.02 -0.21 -0.19 -0.28 0.01 -0.08
20° 0.04 -0.16 -0.02 -0.01 -0.19 -0.17 -0.20 -0.10 -0.36 -0.45 -0.37 -0.07 -0.24
25° 0.03 -0.23 0.01 -0.07 -0.34 -0.37 -0.39 -0.21 -0.51 -0.72 -0.38 -0.30 -0.43
30° -0.02 -0.29 0.01 -0.22 -0.54 -0.62 -0.57 -0.44 -0.77 -1.01 -0.64 -0.71 -0.59
35° -0.10 -0.27 0.00 -0.40 -0.63 -0.68 -0.46 -0.46 -1.04 -1.24 -1.09 -0.81 -0.71
40° -0.23 -0.25 -0.14 -0.58 -0.66 -0.71 -0.36 -0.40 -1.22 -1.52 -1.44 -0.97 -1.22
45° -0.31 -0.21 -0.30 -0.58 -0.67 -0.83 -0.66 -0.62 -1.30 -1.84 -1.76 -1.67 -1.41
50° -0.34 -0.28 -0.40 -0.54 -0.96 -1.22 -1.17 -0.99 -1.60 -2.06 -2.15 -1.97 -1.70
55° -0.30 -0.41 -0.32 -0.63 -1.22 -1.36 -1.20 -0.79 -1.63 -2.21 -2.36 -2.34 -2.41
60° -0.29 -0.58 -0.30 -1.03 -1.41 -1.30 -1.11 -1.06 -1.96 -2.69 -2.79 -2.82 -2.73
65° -0.50 -0.60 -0.41 -1.03 -1.19 -1.79 -1.77 -1.58 -1.77 -2.57 -2.93 -2.97 -3.08
70° -0.78 -0.50 -0.70 -0.94 -1.61 -1.98 -1.41 -1.89 -1.95 -2.64 -3.03 -3.19 -3.34
75° -0.88 -0.64 -0.78 -0.96 -1.69 -1.88 -2.22 -1.56 -3.19 -3.11 -3.35 -3.63 -3.73
80° -0.69 -0.96 -0.64 -1.41 -1.62 -2.29 -2.20 -1.75 -2.63 -4.06 -3.90 -3.84 -4.22
85° -0.56 -1.02 -0.81 -1.43 -1.79 -2.27 -1.98 -2.94 -2.60 -3.63 -4.58 -4.44 -4.17
90° -0.71 -0.76 -1.18 -1.31 -2.35 -2.34 -2.95 -2.70 -2.82 -3.86 -4.50 -4.70 -4.73
95° -1.07 -0.79 -0.97 -1.69 -2.06 -2.85 -2.37 -2.14 -3.78 -3.72 -4.95 -4.85 -4.57
100° -1.42 -1.16 -0.78 -1.81 -2.34 -2.88 -2.73 -2.62 -3.86 -4.18 -5.15 -5.03 -4.95
105° -1.17 -1.60 -1.22 -1.42 -2.71 -2.97 -3.38 -2.99 -4.59 -4.18 -5.18 -5.41 -5.27
110° -0.79 -1.36 -1.77 -1.88 -2.10 -3.32 -2.96 -3.75 -4.09 -4.43 -5.58 -5.24 -5.85
115° -0.96 -0.90 -1.46 -2.55 -2.82 -2.85 -3.48 -2.71 -4.89 -5.25 -5.39 -5.58 -6.40
120° -1.21 -1.09 -0.86 -1.94 -3.41 -3.65 -2.86 -3.48 -3.93 -5.10 -6.28 -6.43 -6.48
125° -1.16 -1.35 -1.22 -1.46 -2.41 -4.04 -4.17 -3.00 -4.59 -5.64 -5.74 -6.11 -6.76
130° -0.72 -1.15 -1.46 -1.99 -2.28 -2.83 -3.80 -4.62 -4.35 -5.15 -6.13 -6.95 -6.62
135° -0.30 -0.55 -0.95 -2.08 -2.99 -3.13 -2.66 -2.63 -5.74 -6.29 -6.61 -6.71 -6.67
140° -0.40 -0.29 -0.27 -1.09 -2.34 -3.54 -3.49 -2.97 -3.19 -4.55 -6.02 -7.25 -7.33
145° -0.84 -0.67 -0.40 -0.72 -1.27 -2.03 -2.95 -3.87 -4.28 -4.96 -5.06 -4.91 -5.31
150° -1.29 -1.22 -0.99 -1.29 -1.64 -1.89 -1.47 -1.35 -4.16 -5.20 -5.87 -6.05 -5.93
155° -1.62 -1.69 -1.66 -2.03 -2.50 -2.78 -2.46 -1.78 -1.87 -2.88 -3.43 -4.01 -4.42
160° -1.60 -1.80 -2.03 -2.72 -3.47 -3.69 -3.38 -3.25 -3.87 -4.13 -4.29 -4.14 -4.49
165° -1.24 -1.44 -1.70 -2.60 -3.59 -4.34 -4.81 -4.95 -5.16 -5.83 -6.00 -5.97 -5.92
170° -0.80 -0.90 -1.02 -1.79 -2.56 -3.42 -4.08 -4.55 -5.88 -6.65 -7.08 -7.71 -7.80
175° -0.50 -0.54 -0.52 -1.14 -1.71 -2.41 -2.73 -2.78 -4.23 -4.86 -5.22 -5.60 -5.79
180° -0.39 -0.40 -0.34 -0.91 -1.41 -2.06 -2.27 -2.17 -3.36 -3.97 -4.27 -4.50 -4.70
185° -0.48 -0.52 -0.52 -1.13 -1.69 -2.43 -2.79 -2.76 -3.96 -4.69 -5.07 -5.51 -5.90
190° -0.75 -0.88 -1.01 -1.76 -2.55 -3.49 -4.18 -4.39 -5.76 -6.78 -7.39 -8.40 -8.88
195° -1.16 -1.42 -1.73 -2.59 -3.64 -4.51 -4.91 -5.01 -5.82 -6.64 -6.97 -6.91 -6.63
200° -1.60 -1.91 -2.24 -2.91 -3.73 -4.01 -3.59 -3.43 -4.42 -4.77 -4.73 -4.53 -4.60
205° -1.72 -1.87 -1.89 -2.26 -2.70 -2.94 -2.66 -2.22 -2.28 -2.92 -3.32 -3.65 -4.12
210° -1.44 -1.38 -1.16 -1.44 -1.78 -1.97 -1.60 -1.40 -3.57 -4.87 -5.77 -6.40 -6.37
215° -0.98 -0.77 -0.45 -0.75 -1.26 -2.06 -3.01 -3.86 -4.54 -5.24 -5.48 -5.11 -5.21
220° -0.46 -0.28 -0.18 -1.04 -2.27 -3.67 -3.54 -3.03 -3.17 -4.22 -5.51 -6.83 -7.32
225° -0.24 -0.47 -0.91 -2.10 -3.16 -3.24 -2.80 -2.49 -5.30 -6.37 -6.68 -6.74 -6.56
230° -0.65 -1.18 -1.56 -2.07 -2.38 -2.74 -3.54 -4.35 -4.71 -5.09 -5.85 -7.18 -7.06
235° -1.21 -1.44 -1.28 -1.46 -2.36 -4.06 -4.08 -3.07 -4.74 -5.96 -6.03 -6.20 -6.48
240° -1.29 -1.13 -0.78 -1.84 -3.37 -3.66 -3.02 -3.69 -4.25 -4.85 -5.83 -6.43 -6.37
245° -1.03 -0.78 -1.30 -2.57 -2.91 -2.92 -3.66 -2.88 -4.41 -5.23 -5.54 -5.73 -6.34
250° -0.73 -1.22 -1.85 -1.97 -2.23 -3.60 -3.00 -3.23 -4.25 -4.53 -5.59 -5.26 -5.94
255° -1.04 -1.64 -1.31 -1.52 -2.89 -2.90 -3.21 -3.03 -4.38 -4.37 -5.17 -5.19 -5.31
260° -1.44 -1.23 -0.88 -1.94 -2.26 -2.78 -2.91 -2.63 -3.76 -4.22 -5.15 -4.86 -4.97
265° -1.18 -0.89 -1.06 -1.73 -1.98 -3.05 -2.48 -2.38 -3.55 -4.02 -4.90 -4.57 -4.63
270° -0.82 -0.85 -1.27 -1.19 -2.48 -2.40 -2.92 -2.69 -2.91 -4.02 -4.53 -4.53 -4.35
275° -0.67 -1.08 -0.71 -1.43 -1.95 -2.34 -2.00 -2.79 -2.78 -3.86 -4.31 -4.14 -4.19
280° -0.74 -0.97 -0.56 -1.58 -1.58 -2.36 -2.26 -1.68 -2.89 -3.78 -3.76 -3.81 -3.88
285° -0.89 -0.55 -0.85 -1.09 -1.74 -1.83 -2.27 -1.76 -2.89 -3.08 -3.28 -3.46 -3.61
290° -0.75 -0.45 -0.85 -0.89 -1.71 -2.06 -1.41 -1.88 -2.01 -2.65 -3.00 -3.27 -3.34
295° -0.42 -0.64 -0.44 -1.00 -1.18 -1.84 -1.77 -1.27 -1.91 -2.66 -3.14 -3.14 -2.96
300° -0.24 -0.68 -0.23 -1.06 -1.39 -1.33 -1.11 -1.23 -1.94 -2.75 -2.85 -2.74 -2.79
305° -0.32 -0.48 -0.27 -0.66 -1.27 -1.34 -1.14 -0.85 -1.70 -2.26 -2.36 -2.37 -2.22
310° -0.43 -0.28 -0.44 -0.51 -0.98 -1.28 -1.09 -0.83 -1.68 -2.15 -2.09 -2.00 -1.68
315° -0.41 -0.15 -0.37 -0.54 -0.62 -0.82 -0.77 -0.52 -1.31 -1.79 -1.83 -1.54 -1.36
320° -0.30 -0.17 -0.15 -0.57 -0.56 -0.58 -0.43 -0.46 -1.23 -1.52 -1.45 -1.06 -1.12
325° -0.14 -0.25 0.01 -0.46 -0.60 -0.54 -0.39 -0.48 -1.04 -1.28 -1.08 -0.77 -0.75
330° -0.02 -0.27 0.07 -0.26 -0.53 -0.51 -0.35 -0.36 -0.79 -0.94 -0.72 -0.60 -0.57
335° 0.04 -0.24 0.05 -0.10 -0.38 -0.40 -0.26 -0.21 -0.62 -0.64 -0.45 -0.36 -0.35
340° 0.08 -0.15 0.04 0.02 -0.18 -0.21 -0.11 -0.06 -0.40 -0.38 -0.25 -0.14 -0.12
345° 0.06 -0.09 0.01 0.04 -0.07 -0.10 -0.03 0.00 -0.23 -0.22 -0.15 -0.06 -0.06
350° 0.03 -0.03 0.01 0.03 -0.01 -0.03 0.00 0.01 -0.09 -0.09 -0.05 0.00 -0.01
355° 0.02 0.01 0.02 0.03 0.02 0.01 0.02 0.03 0.00 -0.01 0.03 0.03 0.03
Nominal Frequency
Angel