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Search: Posts Made By: Topher
Forum: U.S. Class 1 Railroad Discussion 02-09-2006, 07:52 AM
Replies: 22
Views: 3,571
Posted By Topher
When a horn is measured for db rating, it is done...

When a horn is measured for db rating, it is done in an anechoic chamber. Completely free of any outside noise. One of the reasons the horn may be facing to the rear is to reduce the amount of noise...
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