PASSIVE ATTENUATION (AS/NZS 1270:2002)
SM1P/B measured in accordance with AS/NZS 1270:2002.
Headband mount - SM1PBXXX &SM1BBXXX
Frequency (Hz)
125
250
500
1000
2000
4000 8000
SLC
(80)
Mean
attenuation(dB)
20.3
21.7
30.3
33.2
35.2
36.6
37.3
31dB,
Class 5
Standard
deviation(dB)
4.3
3.1
2.7
3.0
2.7
2.5
3.3
Mean atten. –
Standard dev.
(dB)
16.0
18.6
27.6
30.2
32.5
34.1
34.0
Behind-the-Neck mount - SM1PEXXX &SM1BEXXX
Frequency (Hz)
125
250
500
1000 2000 4000 8000
SLC
(80)
Mean
attenuation(dB)
19.3
20.0
27.0
33.7
30.5
33.9
33.0
27dB,
Class 5
Standard
deviation(dB)
5.1
4.1
3.7
2.4
4.5
3.8
5.2
Mean atten. –
Standard dev.
(dB)
14.2
15.9
23.3
31.3
26.0
30.1
27.8
Helmet mount - SM1PHXXX & SM1BHXXX
Frequency (Hz)
125
250
500 1000
2000 4000 8000
SLC
(80)
Mean
attenuation(dB)
15.6
19.1
24.7
29.7
34.0
34.5
33.4
26dB,
Class 5
Standard
deviation(dB)
5.7
5.5
5.2
3.9
3.0
5.5
5.0
Mean atten. –
Standard
dev. (dB)
9.9
13.6
19.5
25.8
31.0
29.0
28.4
En
glis
h
DOC00084 SM1P/B Manual rev 14.00
33
Summary of Contents for SM1B
Page 1: ...SM1P B MANUAL ENGLISH DOC00084 Rev 14 ...
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Page 5: ...HEADSET ANATOMY FIGURE1 English DOC00084 SM1P B Manual rev 14 00 3 ...
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