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������� esi engin�ering Acoustic Test Results <br />Project No: P2846 Analyzer: Larson Davis 831 s/n 3553 <br />Project: Mr. Steve Pullar - Elk River Sportsman's Club Preamplifier: Larson Davis PRM831 s/n 029391 <br />Location: Elk River, Minnesota Microphone: Larson Davis 377C20 s/n 315625 <br />Engineer: A.A.J. Schmitt Calibrator: Larson Davis CAL200 s/n 18322 <br />Last Calibrated: February 11, 2022 <br />Location: NE Corner Near Long Range Shooting Area Meteorology: Temperature: 68 - 73 °F <br />Date: 5/16/2022 Wind Speed / Dir.: 1- 11 MPH / NW <br />Start Time: 3:47:39 PM Humidity: 30 - 34% <br />End Time: 7:01:34 PM Calibration Check: Calibration Frequency: 1 kHz <br />Run Time: 11635.0 seconds Initial Calibration: 94.0 dB <br />Final Calibration: 93.9 dB <br />Measurements: One Second and Hourly Ambient Noise Levels Last Cal. Check: 5/16/22 @ 7:03 PM <br />A-Weighted Results <br />22051600.LD0 - LAF <br />22051600.LD0 - LAeq <br />m <br />a <br />� <br />0 <br />N <br />N <br />L <br />a <br />'ai <br />� <br />a� <br />� <br />m <br />� <br />� <br />ti <br />y <br />m <br />� <br />a <br />a <br />c <br />� <br />0 <br />� <br />PM <br />Time, h.m.s AM/PM <br />Noise Monitoring <br />Measured Hourly LAeq Data <br />Time LAeq <br />4:00:00 PM 43 dBA <br />5:00:00 PM 45 dBA <br />6:00:00 PM 61 dBA <br />Figure A1 <br />