3M Peltor LiteCom MT53H7A4600-NA - CTCSS (Continuous Tone Coded Squelch System); Attenuation; Important User Information

1 2 3
Frequency [Hz] 125 250 500 1000 2000 3150 4000 6300 8000 NRR CSA
Class
MT7H7A4600-NA
Head band
Mean Attenuation [dB] 17.8 23.0 32.1 36.2 35.1 39.0 38.7 38.3 36.5
25 A
Standard Deviation [dB] 4.4 3.2 2.8 3.0 2.4 3.8 3.0 3.5 3.9
MT7H7B4600-NA
Neck band
Mean Attenuation [dB] 18.9 25.9 35.2 37.0 34.9 40.6 39.9 39.7 39.7
26 A
Standard Deviation [dB] 5.2 3.2 3.3 2.9 2.5 3.6 3.0 2.3 2.5
MT7H7P3E4600-NA
Helmet attachment
Mean Attenuation [dB] 19.4 24.3 33.6 35.5 34.1 38.5 38.0 35.8 35.7
25 A
Standard Deviation [dB] 3.4 3.3 3.8 1.7 2.6 3.6 3.1 5.4 5.4
(K) Attenuation
ANSI S3.19-1974
1. 67.0 8. 88.5 15. 110.9 22. 141.3 29. 179.9 36. 233.6
2. 71.9 9. 91.5 16. 114.8 23. 146.2 30. 186.2 37. 241.8
3. 74.4 10. 94.8 17. 118.8 24. 151.4 31. 192.8 38. 250.3
4. 77.0 11. 97.4 18. 123.0 25. 156.7 32. 203.5
5. 79.7 12. 100.0 19. 127.3 26. 162.2 33. 210.7
6. 82.5 13. 103.5 20. 131.8 27. 167.9 34. 218.1
7. 85.4 14. 107.2 21. 136.5 28. 173.8 35. 225.7
(I) CTCSS (Continuous Tone Coded Squelch System)
(J)
(L) Weight
Z3G Z3KZ3E
MT53H7A4600-NA 13.9 oz. (394 g)
M753H7B4600-NA 13.5 oz. (384 g)
MT53H7P3E4600-NA 14.7 oz. (418 g)
(M) Helmet attachments