Instruction Manual

Sound Level Meter Types 2245 – Instruction Manual Page 94 of 110
Table A.18 Directional response for the sound level meter with Windscreen UA-
1650, measured in a plane parallel to the display and along the microphone’s
axis, 3.15 Hz - 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° -0.02 -0.02 -0.02 -0.02 -0.03 -0.03 -0.03 -0.03 -0.03 -0.04 -0.04 -0.03 -0.03
5° -0.01 -0.03 -0.02 -0.02 -0.03 -0.02 -0.02 -0.02 -0.05 -0.04 -0.06 -0.03 -0.03
10° 0.01 -0.07 -0.02 -0.01 -0.05 -0.04 -0.04 -0.04 -0.15 -0.13 -0.17 -0.07 -0.09
15° 0.02 -0.13 -0.03 -0.01 -0.11 -0.09 -0.10 -0.07 -0.26 -0.26 -0.28 -0.08 -0.15
20° 0.03 -0.20 -0.02 -0.04 -0.22 -0.20 -0.20 -0.13 -0.45 -0.47 -0.40 -0.15 -0.29
25° 0.02 -0.28 0.00 -0.11 -0.36 -0.34 -0.31 -0.19 -0.66 -0.69 -0.51 -0.36 -0.49
30° -0.04 -0.32 0.00 -0.26 -0.54 -0.54 -0.47 -0.33 -0.88 -0.98 -0.75 -0.72 -0.66
35° -0.14 -0.30 -0.05 -0.42 -0.64 -0.69 -0.55 -0.45 -1.03 -1.33 -1.05 -0.96 -0.81
40° -0.28 -0.24 -0.18 -0.57 -0.71 -0.87 -0.60 -0.61 -1.25 -1.69 -1.38 -1.22 -1.23
45° -0.41 -0.22 -0.37 -0.66 -0.81 -1.02 -0.71 -0.73 -1.42 -1.90 -1.85 -1.61 -1.62
50° -0.44 -0.29 -0.45 -0.69 -0.98 -1.19 -0.86 -0.87 -1.59 -2.17 -2.26 -1.99 -1.88
55° -0.39 -0.44 -0.39 -0.77 -1.12 -1.31 -1.29 -1.03 -1.73 -2.30 -2.47 -2.50 -2.33
60° -0.34 -0.62 -0.40 -1.00 -1.41 -1.50 -1.41 -1.22 -2.15 -2.68 -2.86 -2.93 -2.93
65° -0.50 -0.67 -0.45 -0.98 -1.40 -1.77 -1.72 -1.16 -1.86 -2.83 -3.04 -3.13 -3.21
70° -0.75 -0.58 -0.66 -1.09 -1.69 -1.89 -1.52 -2.30 -2.14 -2.68 -3.14 -3.30 -3.41
75° -0.89 -0.69 -0.76 -1.11 -1.61 -2.11 -2.27 -1.65 -2.84 -3.26 -3.37 -3.69 -3.87
80° -0.83 -0.95 -0.74 -1.32 -1.88 -2.41 -2.09 -1.85 -3.19 -3.82 -3.91 -3.92 -4.19
85° -0.77 -1.05 -0.89 -1.38 -1.88 -2.23 -2.32 -2.72 -2.64 -4.16 -4.38 -4.31 -4.29
90° -0.84 -0.96 -1.16 -1.50 -2.10 -2.65 -2.71 -2.93 -3.03 -3.90 -4.76 -4.65 -4.59
95° -1.03 -1.00 -1.13 -1.76 -2.22 -2.64 -2.73 -2.41 -3.41 -4.10 -4.96 -4.81 -4.81
100° -1.31 -1.13 -1.11 -1.84 -2.46 -2.86 -2.64 -2.50 -4.19 -4.23 -5.19 -5.02 -5.03
105° -1.18 -1.40 -1.24 -1.78 -2.68 -3.22 -3.11 -3.05 -4.20 -4.26 -5.52 -5.20 -5.59
110° -0.94 -1.32 -1.46 -1.94 -2.56 -3.27 -3.43 -3.29 -4.60 -4.65 -5.33 -5.41 -6.17
115° -0.99 -1.02 -1.35 -2.10 -2.76 -3.31 -3.33 -3.39 -4.48 -4.80 -5.75 -5.73 -6.25
120° -1.09 -1.11 -1.07 -1.93 -2.86 -3.51 -3.54 -3.24 -4.71 -5.64 -5.96 -5.99 -6.53
125° -1.06 -1.17 -1.22 -1.74 -2.61 -3.49 -3.58 -3.80 -4.54 -5.57 -6.21 -6.90 -6.87
130° -0.80 -1.08 -1.23 -1.83 -2.51 -3.15 -3.42 -3.37 -4.88 -6.06 -6.51 -6.87 -6.80
135° -0.52 -0.71 -0.96 -1.82 -2.56 -2.99 -3.10 -2.91 -4.42 -5.19 -6.12 -7.15 -7.19
140° -0.62 -0.57 -0.57 -1.29 -2.28 -3.16 -2.97 -2.95 -3.94 -4.85 -5.67 -6.18 -6.16
145° -0.94 -0.86 -0.70 -1.15 -1.74 -2.42 -2.91 -3.03 -3.53 -4.67 -5.28 -5.60 -5.87
150° -1.29 -1.25 -1.11 -1.55 -2.05 -2.53 -2.24 -2.12 -4.11 -4.79 -5.06 -5.06 -5.21
155° -1.55 -1.63 -1.60 -1.99 -2.51 -2.90 -2.83 -2.71 -3.03 -4.04 -4.49 -4.97 -5.14
160° -1.52 -1.73 -1.92 -2.56 -3.25 -3.46 -3.18 -3.08 -4.21 -4.70 -5.06 -5.16 -5.57
165° -1.18 -1.40 -1.63 -2.48 -3.39 -4.12 -4.49 -4.46 -4.70 -5.46 -5.66 -5.81 -5.73
170° -0.79 -0.91 -1.01 -1.76 -2.52 -3.36 -3.94 -4.31 -5.63 -6.35 -6.77 -7.31 -7.51
175° -0.50 -0.55 -0.53 -1.14 -1.71 -2.40 -2.67 -2.71 -4.19 -4.80 -5.17 -5.54 -5.81
180° -0.41 -0.44 -0.39 -0.97 -1.48 -2.13 -2.32 -2.23 -3.47 -4.10 -4.43 -4.71 -4.99
185° -0.51 -0.57 -0.57 -1.20 -1.78 -2.51 -2.85 -2.80 -4.10 -4.83 -5.23 -5.68 -6.15
190° -0.80 -0.95 -1.08 -1.85 -2.65 -3.57 -4.16 -4.25 -5.59 -6.48 -6.94 -7.70 -8.05
195° -1.24 -1.48 -1.78 -2.61 -3.59 -4.33 -4.50 -4.32 -4.96 -5.71 -6.01 -6.08 -5.93
200° -1.60 -1.84 -2.07 -2.63 -3.33 -3.53 -3.11 -2.96 -4.16 -4.81 -5.15 -5.38 -5.76
205° -1.60 -1.67 -1.63 -1.97 -2.46 -2.85 -2.83 -2.76 -3.29 -4.18 -4.63 -4.93 -5.06
210° -1.31 -1.24 -1.07 -1.48 -2.03 -2.45 -2.26 -2.21 -4.02 -4.73 -4.89 -5.01 -5.07
215° -0.95 -0.83 -0.66 -1.11 -1.79 -2.51 -3.00 -2.92 -3.43 -4.54 -5.37 -5.69 -5.90
220° -0.58 -0.51 -0.51 -1.33 -2.34 -3.18 -2.84 -2.90 -3.83 -4.87 -5.63 -5.92 -6.10
225° -0.45 -0.69 -0.98 -1.81 -2.54 -2.97 -3.20 -2.93 -4.29 -5.08 -6.07 -7.28 -7.34
230° -0.77 -1.09 -1.22 -1.78 -2.46 -3.15 -3.36 -3.21 -5.04 -5.95 -6.30 -6.79 -6.84
235° -1.07 -1.16 -1.18 -1.75 -2.69 -3.59 -3.57 -3.75 -4.55 -5.38 -6.10 -7.02 -6.79
240° -1.05 -1.09 -1.03 -1.97 -2.83 -3.48 -3.56 -3.24 -4.55 -5.53 -5.69 -5.95 -6.37
245° -0.97 -1.00 -1.39 -2.07 -2.75 -3.32 -3.23 -3.25 -4.06 -4.72 -5.52 -5.57 -5.96
250° -0.91 -1.32 -1.43 -1.87 -2.51 -3.24 -3.31 -2.88 -4.23 -4.55 -5.09 -5.34 -5.90
255° -1.17 -1.37 -1.17 -1.76 -2.68 -3.13 -2.99 -2.93 -3.97 -4.25 -5.29 -5.10 -5.28
260° -1.28 -1.03 -1.08 -1.82 -2.38 -2.77 -2.63 -2.45 -4.07 -4.10 -4.93 -4.88 -4.77
265° -0.94 -0.95 -1.07 -1.65 -2.14 -2.54 -2.51 -2.29 -3.34 -3.92 -4.67 -4.65 -4.60
270° -0.77 -0.93 -1.12 -1.43 -1.99 -2.55 -2.56 -2.55 -2.97 -3.64 -4.56 -4.54 -4.38
275° -0.74 -1.01 -0.79 -1.33 -1.85 -2.18 -2.29 -2.55 -2.48 -3.92 -4.17 -4.15 -4.08
280° -0.79 -0.88 -0.68 -1.20 -1.75 -2.25 -1.89 -1.75 -2.90 -3.57 -3.72 -3.73 -3.96
285° -0.85 -0.60 -0.70 -1.04 -1.55 -2.05 -2.10 -1.48 -2.60 -3.09 -3.20 -3.52 -3.59
290° -0.68 -0.52 -0.55 -0.99 -1.56 -1.73 -1.43 -2.04 -2.02 -2.55 -3.01 -3.15 -3.16
295° -0.40 -0.61 -0.36 -0.90 -1.32 -1.66 -1.55 -1.01 -1.70 -2.67 -2.87 -2.94 -2.98
300° -0.27 -0.54 -0.33 -0.91 -1.33 -1.40 -1.30 -1.07 -2.02 -2.58 -2.77 -2.83 -2.71
305° -0.32 -0.34 -0.33 -0.66 -1.00 -1.21 -1.11 -0.85 -1.57 -2.17 -2.34 -2.32 -2.09
310° -0.37 -0.19 -0.36 -0.60 -0.87 -1.08 -0.70 -0.70 -1.49 -2.05 -2.15 -1.86 -1.68
315° -0.35 -0.15 -0.27 -0.61 -0.71 -0.93 -0.58 -0.59 -1.32 -1.83 -1.73 -1.46 -1.43
320° -0.22 -0.18 -0.07 -0.50 -0.62 -0.78 -0.50 -0.48 -1.15 -1.58 -1.28 -1.08 -1.01
325° -0.08 -0.23 0.05 -0.33 -0.55 -0.58 -0.44 -0.30 -0.95 -1.21 -0.91 -0.84 -0.62
330° 0.03 -0.24 0.07 -0.15 -0.44 -0.40 -0.35 -0.21 -0.80 -0.89 -0.63 -0.58 -0.51
335° 0.08 -0.20 0.05 -0.02 -0.28 -0.22 -0.20 -0.12 -0.58 -0.62 -0.43 -0.23 -0.34
340° 0.08 -0.13 0.03 0.04 -0.15 -0.08 -0.07 -0.04 -0.35 -0.37 -0.32 -0.04 -0.16
345° 0.07 -0.06 0.02 0.06 -0.04 0.00 0.02 0.02 -0.17 -0.17 -0.18 0.02 -0.04
350° 0.04 -0.01 0.01 0.03 -0.01 0.02 0.03 0.02 -0.06 -0.05 -0.07 0.03 0.00
355° 0.02 0.01 0.01 0.02 0.02 0.03 0.04 0.03 0.00 0.00 0.01 0.03 0.02
Nominal Frequency
Angel