5.2 Appendix B: Noise level information
The following table shows typical noise levels to be encountered on ships. This table can be used as an aid only to
choose among the list of telephones and communication stations.
Location Noise level (dB)
Accommodation < 60
Bridge 50-60
Engine control room 65-75
Engine spaces 80-100
Steering gear room 100-120
Close to engine or generators 100-130
The following table shows communication station capabilities for operation in certain noise. This table can be used as an
aid only to choose among the list of communication stations.
Communication
station
Noise level (dB) capability for operation
Push to talk operation up to 100 dBAlphaConnect P211
Headset operation up to 120 dB
Handset operation up to 85 dBAlphaConnect P220
Headset operation up to 100 dB
Hands free with build in speaker and microphone up to 75 dB
Hands free with external speaker up to 85 dB
Push to talk conversations with external speaker up to 100 dB
AlphaConnect P411
Operation with headset in up to 120 dB
Hands free with build in speaker and microphone up to 75 dB
Hands free with external speaker up to 85 dB
Push to talk conversations with external speaker up to 100 dB
Handset conversations up to 85 dB
AlphaConnect P421
Operation with headset in up to 120 dB
70 | Appendices
To Next Page
Loading...