BRUEL & KJAER 4184-A, Technical Documentation Manual, Page: 19 / 52

CHAPTER 4
Specifications
13
Fig.4.18b 4184-A 90 ° (Side), sensitivity variations for Weatherproof Microphone Unit Type 4184-A with the Microphone
Preamplifier connected to a microphone extension cable, at sound incidence angles within
±

° from the
reference direction. Corresponds to Table A.34b
Fig.4.19 Weatherproof Microphone Unit Type 4184-A cannot be mounted directly on the analyzer
Fig.4.20 Weatherproof Microphone Unit Type 4184-A cannot be mounted directly on the analyzer
Fig.4.21 Weatherproof Microphone Unit Type 4184-A cannot be mounted directly on the analyzer
Fig.4.22 Weatherproof Microphone Unit Type 4184-A is not specified together with Outdoor Microphone Kit UA-1404
Fig.4.23 Weatherproof Microphone Unit Type 4184-A is not specified together with Outdoor Microphone Kit UA-1404
4.8 Self-generated Noise
Self-generated noise is given for nominal microphone Open Circuit Sensitivity, Sound Field Correction
set to Free-field and no microphone accessories selected.
± 90°
0
5
10
15
20
dB
100 1000 10000 Hz
± 30°
0
5
10
15
20
dB
100 1000 10000 Hz
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