MPE CALCULATIONS

FCC ID: LO6-DVRS700

RF Exposure Info

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FCCID_612748

FCC ID: LO6-DVRS700 SR2966 Presented below is a summary of the tested frequencies and associated power outputs for each DUT. Mobile VHF Radios DVR M20KSS9PW1AN M20KTS9PW1AN Frequency Po (W) Frequency Po (W) Frequency Po (W) 764 4.99 147.0125 55.6 147.4000 55.8 770 5.02 155.0125 55.8 155.0000 55.6 776 4.97 173.9875 55.6 173.9875 55.8 794 4.98 800 5.00 806 4.98 10.0 Test Set-Up Description The following are the mobile antenna test configurations used for this product. (for reference, see Illustration of antenna location and test distances in the APPENDIX A) a) Each of the ¼ wave 0dBd gain antennas (HAD4007A, HAD4008A, HAD4009A) was assessed while mounted at the center of the roof of the test vehicle. b) The ¼ wave 0dBd gain antenna model HAF4016A was assessed while mounted at the trunk. Assessments were made internal and external to the test vehicle at the specified distances and test locations indicated in sections 6.0, 11.0, and the APPENDIX A. 11.0 Test Results Summary APPENDIX E presents detailed raw MPE measurement grid information for each test configuration; person external or internal to the vehicle, TX frequency, antenna (location, model and gain), distance from antenna to probe sensor, E/H field measurements, calibration factor, MPE average over body, initial power, power density calc, power density max calc, IEEE/FCC controlled and uncontrolled limits, and maximum output power. The Average over Body test methodology is consistent with IEEE/ANSI C95.1-1999 guidelines MPE results are based on a DVR 100% duty cycle and VHF mobile 50% duty cycle which is in accordance with the User Manual instructions. Below is an explanation of how the MPE results are calculated. External to vehicle - 10 measurements are averaged over the body (Body_Avg). Internal to vehicle - 3 measurements are averaged over the body (Body_Avg). Narda Survey Meter measures in percent of the controlled limit. Therefore the averages over the body used in the calculations below reflect percentages. Form-MPE Vehicle rpt. Rev 3.00 Page 7 of 25

FCC ID: LO6-DVRS700 SR2966 Therefore; Average _ over _ Body = Body _ Avg * Controlled _ Limit Pwr _ Density _ Calc = Average _ over _ Body * _ Duty _ Cycle Max _ Output _ Power Pwr _ Density _ Max _ Calc = Pwr _ Density _ Calc * Initial _ Output _ Power Note; For Initial Output Power> Max_Output_Power, Max_Output_Power / Initial Output Power = 1 The tables below summarize the highest MPE results of the E and H test configurations for the VHF mobiles, DVR, and combined assessments. See APPENDICES A and E respectively for the indicated test positions and associated raw measurement grid tables. Table 1 - M20KSS9PW1AN VHF Mobile Assessments – Highest MPE result per test position Test Passenger/ Max Calc % of Antenna Antenna Frequency By-Stander Pwr Density Uncontrolled Tables Model Location (MHz) E/H Field Pos. (mW/cm2) limit Table 2 HAD4007A Roof 147.0125 E Passenger 0.16 80.0% By-Stander Table 23 HAD4009A Roof 173.9875 H Pos. #1 0.04 20.0% By-Stander Table 7 HAD4007A Roof 147.0125 E Pos. #2 0.07 35.0% By-Stander Table 12 HAD4009A Roof 173.9875 E Pos. #3 0.06 30.0% By-Stander Table 32 HAD4008A Roof 155.0125 E Pos. #4 0.04 20.0% By-Stander Table 17 HAD4008A Roof 155.0125 E Pos. #5 0.04 20.0% Table 2 - M20KTS9PW1AN VHF Mobile Assessments - Highest MPE result per test position Test Passenger/ Max Calc % of Antenna Antenna Frequency By-Stander Pwr Density Uncontrolled Tables Model Location (MHz) E/H Field Pos. (mW/cm2) limit Table 2 HAD4007A Roof 147.4000 E Passenger 0.16 80.0% By-Stander Table 3 HAD4008A Roof 155.0000 E Pos. #1 0.04 20.0% By-Stander Table 8 HAD4008A Roof 155.0000 E Pos. #2 0.07 35.0% By-Stander Table 29 HAD4008A Roof 155.0000 H Pos. #3 0.06 30.0% By-Stander Table 31 HAD4007A Roof 147.4000 H Pos. #4 0.06 30.0% By-Stander Table 35 HAD4008A Roof 155.0000 H Pos. #5 0.06 30.0% Form-MPE Vehicle rpt. Rev 3.00 Page 8 of 25

FCC ID: LO6-DVRS700 SR2966 Table 3 - DQPMDVR7000P - DVR 700MHz Assessments - Highest MPE result per test position Test Passenger/ Max Calc % of Antenna Antenna Frequency By-Stander Pwr Density Uncontrolled Tables Model Location (MHz) E/H Field Pos. (mW/cm2) limit Table 10 HAF4016A Trunk 800 E Passenger 0.06 11.3% By-Stander Table 11 HAF4016A Trunk 806 E Pos. #1 0.07 13.0% By-Stander Table 15 HAF4016A Trunk 776 E Pos. #2 0.07 13.5% By-Stander Table 19 HAF4016A Trunk 764 E Pos. #3 0.06 11.8% By-Stander Table 27 HAF4016A Trunk 776 E Pos. #4 0.10 19.2% By-Stander Table 31 HAF4016A Trunk 764 E Pos. #5 0.09 17.6% Table 4 - Combined VHF Mobile M20KSS9PW1AN and DVR DQPMDVR7000P (Calculated % of limit performance) Percentage of Limit M20KSS9PW1AN DVR Combined Test Position (147-174MHz) (700MHz) Percentages Passenger 80.0% 11.3% 91.3% By-Stander #1 20.0% 13.0% 33.0% By-Stander #2 35.0% 13.5% 48.5% By-Stander #3 30.0% 11.8% 41.8% By-Stander #4 20.0% 19.2% 39.2% By-Stander #5 20.0% 17.6% 37.6% Table 5 - Combined VHF Mobile M20KTS9PW1AN and DVR DQPMDVR7000P (Calculated % of limit performance) Percentage of Limit M20KTS9PW1A N (147- DVR Combined Test Position 174MHz) (700MHz) Percentages Passenger 80.0% 11.3% 91.3% By-Stander #1 20.0% 13.0% 33.0% By-Stander #2 35.0% 13.5% 48.5% By-Stander #3 30.0% 11.8% 41.8% By-Stander #4 30.0% 19.2% 49.2% By-Stander #5 30.0% 17.6% 47.6% Form-MPE Vehicle rpt. Rev 3.00 Page 9 of 25

FCC ID: LO6-DVRS700 SR2966 12.0 Conclusion Depending on the test frequency, both VHF mobile assessments were performed with an output power range of 55.6W – 55.8W. The DVR output power across the TX band (with 2dB duplexer loss) is 4.97W – 5.02W. The highest power density results for the XTL5000 VHF mobile devices scaled to the maximum allowable power output is 0.16mW/cm2 internal to the vehicle and 0.07mW/cm2 external to the vehicle. The highest power density results for the DVR device scaled to the maximum allowable power output is 0.06mW/cm2 internal to the vehicle and 0.10mW/cm2 external to the vehicle. The highest combined power density performance is 91.3% of the applicable FCC/IEEE MPE limits using the following methodology and formula: Because the signals emitted by each individual transmitter are statistically uncorrelated, the collective compliance of the transmitters is determined by summing the individual ratios between actual (S) and maximum allowed (MPE) exposure. Compliance is achieved if the total exposure level (T) is less than one: S1 S2 T= + + ... < 1 MPE1 MPE2 Therefore: 0.06 0.16 T= + = 0.913 < 1 0.53 0.20 The MPE results presented herein demonstrate compliance to the applicable FCC/IEEE Occupational/Controlled exposure limit of 1.0mW/cm2 for the frequency range of 30-300MHz and f/300 for the frequency range of 300-1500MHz. Compliance to the FCC/IEEE General population/Uncontrolled exposure limits of 0.2mW/cm2 for the frequency range of 30-300MHz and f/1500 for the frequency range of 300-1500MHz is also demonstrated herein for both passengers and by-standers. Form-MPE Vehicle rpt. Rev 3.00 Page 10 of 25


Document Created: 2005-12-09 11:17:45
Document Modified: 2005-12-09 11:17:45
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