HomeMy WebLinkAboutT-MOBILE CEDARWOOD WTF -PDP - 38-06 - CORRESPONDENCE -Jonathon E. Kaseman, P.E.
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NORTEL S8000
Test Location
Sound Measurement, dBA
Directly in Front of Fan Louver of Equipment
74-75
In Front of Fan Louver @ 1' from Equipment
66-67
In Front of Equipment @ 3'
60-61
On Sides and Back of Equipment @ 1' Radius
60-62
Note: 1.) Tests of greater distance were not performed on the S8000 due to confines of
shelter. 2.) Higher sound measurements could be due to close proximity of sheltler
walls to the equipment.
In summary, the Nortel S12000 and S8000 while in service are very quiet. The operating
sounds produced by each of these can be compared to the sounds produced by household
refrigerators. At distances greater than twenty feet, the equipment sounds are inaudible.
Sincerely,
Jonathon Kaseman, P.E.
Jonathon Kaseman, P.E.
P.O. Box 260711 • Littleton, Colorado 80126
7322 Powder Horn Drive • Lone Tree, Colorado 80124
303-791-2432(0) • 303-908-5661(M) • EMAIL: jonkaseman@comcast.net
April 8, 2006
T Mobile
2323 Delgany Street
Denver, Colorado 80216
ATTN: Ms. Lori LeBlanc
Project: Sound Testing of T Mobile Radio Equipment
Dear Ms. LeBlanc,
On April 6, 2006 sound tests were performed on field installations of T Mobile Radio
Equipment. The Nortel S12000 and Nortel S8000 were the specific models tested. Each model
was tested while in operation; the specific sites selected were isolated to eliminate sound from
other sources. Both tests were conducted on equipment installed in interior locations. The
ambient temperature was approximately 68' F; the relative humidity was approximately 17%.
A Tripod mounted Digital Sound Level Meter was used for all measurements. The tables
below summarize the test results.
NORTEL S12000
Test Location
Sound Measurement dBA
Directly in Front of Fan Louver of Equipment
66-67
In Front of Fan Louver @ 1' from Equipment
60
In Front of Equipment @ 3'
52-53
In Front of Equipment @ 6'
50-51
On Sides and Back of Equipment @ 1' Radius
55-58