BRUEL & KJAER 4184-A, Technical Documentation Manual, Page: 38 / 52

Weatherproof Microphone Unit Type 4184-A – Supplement to Instruction Manual BE 1712 32
Table A.33 Directional response for Weatherproof Microphone Unit Type 4184-A with the Microphone Preamplifier
connected to a microphone extension cable. The sound incidence angles are for 4184-A 0 ° (Top)'s reference direction.
For 4184-A 90 ° (Side) subtract 90 ° degrees from the angels in the table to get the sound incidence angle. 11200 Hz –
20000 Hz, in dB
Frequency
Angle 11200 Hz 11800 Hz 12500 Hz 13200 Hz 14000 Hz 15000 Hz 16000 Hz 17000 Hz 18000 Hz 19000 Hz 20000 Hz
0° 0.00 –0.01 0.00 0.00 0.01 0.02 –0.01 –0.02 0.00 0.01 0.02
5° –0.09 –0.16 –0.12 –0.07 –0.15 –0.17 –0.26 –0.30 –0.32 –0.22 –0.16
10° –0.25 –0.52 –0.53 –0.25 –0.58 –0.70 –0.98 –1.08 –1.10 –0.73 –0.67
15° –0.51 –0.91 –1.04 –0.41 –1.08 –1.29 –1.51 –1.53 –1.36 –0.74 –0.79
20° –1.14 –1.24 –1.42 –0.72 –1.33 –1.53 –1.28 –1.46 –1.22 –0.58 –0.72
25° –1.64 –1.61 –1.29 –1.08 –1.23 –1.05 –1.21 –2.04 –1.85 –1.14 –0.80
30° –1.15 –1.56 –1.41 –0.67 –1.05 –1.02 –1.68 –1.93 –1.76 –0.99 –0.59
35° –1.26 –1.24 –1.51 –1.04 –1.13 –1.45 –1.33 –2.17 –2.25 –1.81 –1.30
40° –1.14 –2.06 –1.70 –1.28 –1.87 –1.64 –1.84 –2.87 –3.27 –2.77 –1.88
45° –1.52 –1.76 –1.85 –2.03 –2.16 –2.23 –2.21 –2.30 –2.82 –2.92 –2.38
50° –1.62 –2.19 –2.85 –2.27 –2.65 –2.47 –1.94 –2.80 –3.27 –3.28 –2.30
55° –2.17 –2.95 –2.74 –2.38 –2.56 –2.74 –2.08 –2.29 –3.13 –3.50 –2.33
60° –2.64 –3.11 –2.78 –2.24 –2.94 –2.79 –2.00 –2.95 –3.25 –2.75 –2.02
65° –2.38 –3.01 –2.60 –2.32 –2.99 –3.03 –2.22 –2.68 –3.25 –2.48 –1.92
70° –2.57 –2.81 –2.71 –2.19 –3.53 –2.83 –2.83 –2.95 –2.68 –2.56 –2.59
75° –2.65 –2.87 –2.53 –2.62 –2.90 –3.37 –2.50 –2.62 –3.17 –2.48 –2.24
80° –2.30 –2.68 –2.68 –2.35 –3.02 –2.50 –3.07 –2.96 –3.51 –2.52 –1.78
85° –2.28 –2.84 –2.90 –2.39 –2.38 –2.89 –2.81 –3.74 –3.33 –3.14 –2.24
90° –2.20 –2.83 –2.99 –2.20 –2.73 –2.66 –2.86 –3.63 –3.33 –3.39 –2.24
95° –2.28 –2.71 –2.45 –2.10 –2.49 –2.62 –3.00 –3.39 –4.17 –3.32 –3.03
100° –1.83 –2.82 –2.61 –2.13 –2.55 –2.91 –2.92 –3.33 –3.48 –3.11 –3.04
105° –1.98 –2.85 –2.16 –2.08 –2.80 –2.51 –2.72 –3.50 –3.55 –3.27 –2.71
110° –2.05 –2.80 –2.28 –2.29 –2.54 –2.67 –3.03 –2.85 –3.78 –3.26 –3.16
115° –2.14 –3.16 –2.32 –2.49 –2.55 –2.65 –2.49 –3.35 –3.69 –2.31 –2.43
120° –1.94 –2.39 –2.40 –3.20 –2.59 –2.71 –2.40 –3.00 –2.82 –3.07 –2.59
125° –1.83 –2.21 –2.10 –2.39 –2.94 –2.98 –2.45 –3.53 –3.84 –2.53 –1.61
130° –1.86 –2.63 –2.16 –2.35 –2.21 –2.37 –2.52 –2.99 –3.62 –2.97 –2.44
135° –1.50 –2.39 –2.68 –2.48 –3.00 –2.64 –2.25 –2.56 –2.69 –3.07 –2.17
140° –1.94 –2.48 –2.56 –2.21 –2.60 –3.14 –3.04 –2.74 –2.63 –2.27 –1.69
145° –2.66 –3.16 –2.98 –2.51 –3.12 –3.07 –3.00 –3.49 –3.67 –2.83 –2.15
150° –2.70 –2.99 –3.09 –3.04 –3.38 –3.29 –3.24 –3.09 –4.13 –3.64 –3.19
155° –2.34 –3.07 –2.96 –2.86 –3.19 –3.28 –3.07 –3.14 –3.74 –3.18 –2.77
160° –2.18 –2.88 –3.06 –2.39 –2.48 –2.65 –2.94 –3.63 –3.55 –2.91 –2.47
165° –1.97 –2.46 –2.58 –2.35 –2.47 –2.60 –2.85 –3.36 –4.11 –3.68 –2.89
170° –1.59 –1.84 –1.52 –1.02 –1.39 –1.44 –1.28 –2.21 –2.97 –3.15 –3.40
175° –2.22 –2.75 –3.41 –3.22 –3.94 –4.80 –4.82 –5.37 –6.19 –6.04 –5.80
180° –0.11 –0.41 –0.74 –0.48 –0.80 –1.28 –1.50 –1.95 –2.69 –2.70 –2.33
185° –2.54 –3.10 –3.87 –3.86 –4.55 –5.58 –5.98 –6.52 –7.60 –7.23 –6.93
190° –1.98 –2.22 –1.91 –1.42 –1.73 –1.87 –1.78 –2.76 –3.52 –3.42 –3.65
195° –2.50 –2.94 –2.89 –2.69 –2.76 –2.83 –3.19 –3.78 –4.31 –3.69 –2.79
200° –2.47 –3.18 –3.25 –2.77 –2.93 –3.18 –3.38 –3.78 –3.44 –2.72 –2.41
205° –2.55 –3.29 –3.14 –2.96 –3.44 –3.35 –3.04 –2.97 –3.64 –3.16 –2.67
210° –2.88 –3.09 –3.29 –3.03 –3.38 –3.26 –3.30 –3.22 –4.06 –3.74 –2.98
215° –2.52 –3.13 –2.98 –2.68 –2.91 –3.15 –3.30 –3.82 –3.52 –2.84 –2.32
220° –1.78 –2.23 –2.61 –2.63 –2.79 –3.70 –3.16 –2.87 –2.85 –2.39 –1.89
225° –1.72 –2.58 –3.00 –2.98 –3.36 –2.85 –2.21 –2.72 –3.01 –2.63 –1.88
230° –2.40 –3.27 –2.83 –2.71 –2.40 –2.53 –2.88 –2.70 –3.17 –3.07 –1.90
235° –2.36 –2.69 –2.50 –2.31 –3.06 –2.68 –2.55 –3.16 –3.63 –2.10 –1.90
240° –2.19 –2.76 –2.83 –3.18 –2.65 –2.54 –2.40 –2.79 –2.93 –3.02 –2.01
245° –2.41 –3.92 –2.73 –2.65 –2.21 –2.59 –1.92 –3.10 –3.37 –2.21 –1.90
250° –2.62 –3.77 –2.52 –2.44 –2.11 –2.73 –3.05 –2.80 –3.38 –2.62 –2.11
255° –2.47 –3.03 –2.15 –2.23 –2.43 –2.10 –2.33 –3.17 –2.83 –2.49 –2.23
260° –2.68 –3.22 –2.66 –1.86 –2.30 –3.15 –2.68 –3.14 –3.25 –2.72 –2.65
265° –3.15 –3.07 –2.50 –1.96 –2.29 –2.08 –2.86 –2.81 –2.95 –2.50 –2.33
270° –2.73 –3.30 –3.13 –2.15 –2.39 –2.61 –2.56 –3.44 –2.76 –2.42 –1.71
275° –2.99 –3.55 –2.83 –2.28 –2.35 –2.67 –2.34 –3.00 –2.45 –2.44 –1.42
280° –3.30 –3.61 –3.08 –2.36 –2.68 –1.99 –2.69 –2.41 –2.85 –1.66 –1.46
285° –3.21 –3.57 –3.34 –2.72 –2.21 –2.72 –1.92 –2.86 –2.60 –1.77 –1.52
290° –2.78 –3.67 –3.60 –2.51 –3.23 –2.16 –2.67 –2.02 –2.44 –1.97 –1.43
295° –2.89 –3.58 –3.23 –2.84 –3.01 –3.17 –2.00 –2.04 –2.69 –2.21 –1.70
300° –2.73 –3.01 –3.29 –2.45 –3.27 –3.06 –2.42 –2.92 –3.13 –2.26 –1.92
305° –1.91 –2.93 –2.95 –2.74 –2.72 –3.00 –2.50 –2.54 –3.20 –3.06 –1.83
310° –1.77 –2.13 –2.34 –2.43 –2.67 –2.57 –2.28 –3.06 –3.51 –3.03 –2.16
315° –1.90 –1.93 –1.84 –1.84 –2.31 –2.25 –2.41 –2.46 –2.99 –2.78 –2.15
320° –1.55 –2.14 –2.11 –1.46 –2.12 –1.68 –1.82 –2.94 –3.21 –2.78 –1.72
325° –2.02 –2.05 –2.22 –1.77 –1.84 –1.99 –1.71 –2.29 –2.23 –1.94 –1.16
330° –1.77 –2.47 –2.60 –2.04 –2.10 –2.18 –2.56 –2.78 –2.71 –1.80 –1.14
335° –2.01 –2.48 –2.20 –2.34 –2.28 –1.99 –2.30 –3.24 –3.26 –2.33 –1.68
340° –1.32 –1.66 –2.03 –1.57 –2.16 –2.38 –2.23 –2.59 –2.78 –2.01 –1.97
345° –0.46 –1.03 –1.43 –0.73 –1.52 –1.75 –2.06 –2.37 –2.45 –1.83 –1.86
350° –0.08 –0.46 –0.64 –0.27 –0.69 –0.85 –1.12 –1.50 –1.53 –1.16 –1.25
355° –0.03 –0.14 –0.18 –0.07 –0.18 –0.26 –0.29 –0.43 –0.43 –0.35 –0.46