DOC00074 SM1R Manual rev 04
22
PASSIVE ATTENUATION (ANSI S12.6– 2008)
SM1R measured in accordance with ANSI S12.6 - 2008.
Headband mount- SM1RB001
Frequency (Hz) 125
250
500
1000 2000 4000 8000
NRR(SF)
Mean
attenuation
(dB)
21.4
21.9
29.8
33.7
35.8
37.2
38.5
27 dB
Standard
Dev. (dB)
3.0
2.1
1.7
2.8
1.5
1.9
2.8
APV80
18.9
20.1
28.4
31.3
34.5
35.6
36.1
Behind-the-Neck mount- SM1RE001
Frequency (Hz) 125
250
500
1000 2000 4000 8000
NRR(SF)
Mean
attenuation
(dB)
18.7
19.9
28.0
34.1
31.5
35.6
35.3
24.3 dB
Standard
Dev. (dB)
3.0
2.5
2.2
1.7
3.2
3.4
4.1
APV80
16.2
17.8
26.2
32.7
28.8
32.7
31.9
Helmet mount - SM1RH001
Frequency (Hz) 125
250
500
1000 2000 4000 8000
NRR(SF)
Mean
attenuation
(dB)
15.0
17.7
25.2
30.4
33.9
34.5
33.8
19.1 dB
Standard
Dev. (dB)
6.5
6.7
6.6
4.0
3.3
5.9
5.1
APV80
9.5
12.1
19.7
27.0
31.1
29.5
29.5
En
glis
h
Summary of Contents for SM1R
Page 1: ...SM1R MANUAL ENGLISH DOC00074 Rev 04...
Page 2: ......
Page 5: ...DOC00074SM1R Manual rev 04 3 HEADSET ANATOMY FIGURE 1 English...
Page 34: ......
Page 35: ...Printed inAustralia...
