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(D) CTCSS (Continuous Tone Coded Squelch System)
1.
8.
67.0
2.
71.9
9.
3.
74.4
10.
4.
77.0
11.
5.
79.7
12.
6.
13.
82.5
7.
14.
85.4
(E) Attenuation ANSI S3.19-1974
(E:1) Frequency [Hz]
MT7H7A4600-NA
(E:2) Mean Attenuation [dB]
Head band
(E:3) Standard Deviation [dB]
MT7H7B4600-NA
(E:2) Mean Attenuation [dB]
Neck band
(E:3) Standard Deviation [dB]
MT7H7P3E4600-NA
(E:2) Mean Attenuation [dB]
Helmet attachment
(E:3) Standard Deviation [dB]
(F) Weight
MT53H7A4602-NA
13.9 oz. (394 g)
M753H7B4602-NA
13.5 oz. (384 g)
MT53H7P3E4602-NA
14.7 oz. (418 g)
(G) Helmet attachments
Z3E
15.
88.5
110.9
91.5
16.
114.8
94.8
17.
118.8
97.4
18.
123.0
100.0
19.
127.3
20.
103.5
131.8
21.
107.2
136.5
125
17.8
4.4
18.9
5.2
19.4
3.4
Z3G
Z3K
22.
29.
141.3
179.9
23.
146.2
30.
186.2
24.
151.4
31.
192.8
25.
156.7
32.
203.5
26.
162.2
33.
210.7
27.
34.
167.9
218.1
28.
35.
173.8
225.7
250
500
1000
2000
23.0
32.1
36.2
35.1
3.2
2.8
3.0
2.4
25.9
35.2
37.0
34.9
3.2
3.3
2.9
2.5
24.3
33.6
35.5
34.1
3.3
3.8
1.7
2.6
36.
233.6
37.
241.8
38.
250.3
3150
4000
6300
8000
39.0
38.7
38.3
36.5
3.8
3.0
3.5
3.9
40.6
39.9
39.7
39.7
3.6
3.0
2.3
2.5
38.5
38.0
35.8
35.7
3.6
3.1
5.4
5.4
NRR
CSA
Class
25
A
26
A
25
A
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