MNTX-US , LHE-00


Noise Levels at Different Periods

The table below gives the decibel 10% noise level (in db) for each month in several period bands. The 10% noise level is defined as the signal level not exceeded 10% of the time, based on hourly measurements. Each entry in the table is color coded with reference to the New Low Noise Model (NLNM, Peterson, 1993):
navy, -6 db < value-NLNM < -3 db
blue, -3 db < value-NLNM < 3 db
aqua, 3 db < value-NLNM < 6 db
lime, 6 db < value-NLNM < 9 db
yellow, 9 db < value-NLNM < 12 db
orange, 12 db < value-NLNM < 15 db
red, 15 db < value-NLNM < 20 db
fuchsia, 20 db < value-NLNM < 25 db
silver, value-NLNM < -6 db, value-NLNM > 25 db

Black indicates that there was an insufficient number of hourly measurements to calculate a noise level.


Noise levels (PSD) in decibels
Month Chan. Qual. # obs. 268s 228s 193s 164s 139s 118s 100s 85s 72s 61s 52s 44s 37s 32s 27s 23s 19s 16s 14s 12s 10s
201003 LHE-00 AR 253 -151 -153 -155 -156 -158 -160 -161 -163 -165 -166 -167 -168 -169 -170 -169 -165 -160 -154 -153 -153 -145
201002 LHE-00 AR 599 -152 -153 -154 -156 -158 -160 -161 -163 -165 -166 -167 -169 -171 -172 -171 -170 -164 -159 -155 -155 -154
201001 LHE-00 AR 694 -151 -152 -154 -156 -157 -159 -160 -162 -164 -166 -167 -169 -170 -171 -171 -169 -163 -156 -152 -152 -151
200912 LHE-00 AR 731 -149 -151 -152 -154 -155 -157 -158 -160 -162 -163 -165 -167 -168 -170 -171 -169 -163 -157 -154 -153 -151
200911 LHE-00 AR 702 -151 -153 -155 -155 -157 -159 -160 -162 -164 -165 -167 -168 -170 -171 -172 -171 -167 -160 -156 -155 -154
200910 LHE-00 AR 729 -150 -152 -153 -155 -157 -158 -160 -161 -163 -164 -166 -167 -169 -169 -170 -168 -163 -159 -158 -158 -154
200909 LHE-00 AR 718 -152 -154 -156 -157 -159 -161 -162 -164 -165 -167 -169 -170 -172 -173 -173 -172 -167 -163 -162 -160 -157
200908 LHE-00 AR 721 -151 -152 -155 -157 -158 -160 -162 -164 -166 -168 -169 -171 -172 -173 -173 -172 -167 -162 -162 -164 -161
200907 LHE-00 AR 725 -152 -154 -155 -157 -158 -160 -162 -163 -165 -166 -167 -168 -170 -171 -171 -170 -166 -162 -161 -164 -161
200906 LHE-00 AR 635 -152 -153 -155 -157 -159 -161 -162 -163 -165 -167 -168 -169 -171 -172 -172 -171 -166 -161 -161 -164 -160
200905 LHE-00 AR 454 -153 -155 -157 -158 -160 -161 -164 -164 -166 -168 -169 -171 -172 -173 -173 -171 -167 -162 -162 -164 -161