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Home My WebLink AboutCD 2020-0010; T-MOBILE SD06088A; Radio Frequency - Electromagnetic Energy (RF-EME) Compliance Report; 2019-08-22Radio Frequency -Electromagnetic Energy (RF-EME) Compliance Report (L600) T-Mobile Proposed Facility Site ID: SD06088 Las Flores I 096 Laguna Drive, Carlsbad, California 92008 Status: August 22, 2019 EBI Project Number: 6219004107 The proposed site will be compliant with the installation of the mitigation measures described in Attachment I. Remarks: See signage plan for mitigation measures to be installed upon upgrade/installation of the site to comply with FCC and T-Mobile standards. TABLE OF CONTENTS 1.0 Executive Summary .............................................................................................................. 3 2.0 MPE Calculations ..............•......................................................................•............................ 4 3.0 T-Mobile Antenna Inventory ............................................................................................... 5 4.0 Summary-and Conclusions .................................................................................................. 6 Attachment I: MPE Analysis and Recommended Signage ........................................................ 7 Attachment 2: RoofV'iew® Export File ......................................................................................... 9 Appendix A: Certifications ........................................................................................................ 10 Appendix B: Federal Communications Commission (FCC) Requirements ....................... 12 2 EBI Consulting ♦ 21 B Street ♦ Burlington, MA 01803 ♦ 1.800.786.2346 1.0 Executive Summary EnviroBusiness Inc. (dba EBI Consulting) has been contracted by T-Mobile to conduct radio frequency electromagnetic (RF-EME) modeling for T-Mobile Site S006088 located at I 096 Laguna Drive in Carlsbad, California to determine RF-EME exposure levels from proposed T-Mobile wireless communications equipment at this site. As described in detail in Appendix B of this report, the Federal Communications Commission (FCC) has developed Maximum Permissible Exposure (MPE) Limits for general public exposures and occupational exposures. This report summarizes the results of RF-EME modeling in relation to relevant FCC RF-EME compliance standards for limiting human exposure to RF- EME fields. This report contains a detailed summary of the RF EME analysis for the site. This document addresses the compliance of T-Mobile's proposed transmitting facilities independently at the site. The Maximum Emissions Value is 4792.5000% of the FCC's general public limit (958.5000% of the FCC's occupational limit) at the main roof level. The proposed site will be compliant with Federal regulations regarding (radio frequency) RF Emissions with the installation of the mitigation measures. At the nearest walking/working surfaces to the T-Mobile antennas, the maximum power density generated by the T-Mobile antennas is approximately 4,792.50 percent of the FCC's general public limit (958.50 percent of the FCC's occupational limit) at the rooftop. Based on worst-case predictive modeling, the worst-case emitted power density may exceed the FCC's general public limit within approximately 22 feet of T-Mobile's proposed antennas at the main roof level. Modeling also indicates that the worst-case emitted power density may exceed the FCC's occupational limit within approximately 10 feet of T-Mobile's proposed antennas at the main roof level. Signage is recommended at the site as presented in Attachment I. Posting of the signage and installation of other markings brings the site into compliance with FCC rules and regulations. 3 EBI Consulting • 21 B Street • Burlington, MA 01803 • 1.800.786.2346 2.0 MPE Calculations Calculations were completed for the proposed T-Mobile Wireless antenna rooftop facility located at I 096 Laguna Drive in Carlsbad, California using the equipment information listed below. All calculations were performed per the specifications under FCC OET 65. Because of the short wavelength of PCS services, the antennas require line-of-site paths for good propagation, and are typically installed a distance above ground level. Antennas are constructed to concentrate energy towards the horizon, with as little energy as possible scattered towards the ground or the sky. This design, combined with the low power of PCS facilities, generally results in no possibility for exposure to approach Maximum Permissible Exposure (MPE) levels, with the exception of in areas in the immediate vicinity of the antennas. In accordance with T-Mobile's RF Exposure policy, EBI performed theoretical modeling using RoofView® software to estimate the worst-case power density at the site rooftop-level resulting from operation of the antennas. For this report, EBI utilized antenna and power data provided by T-Mobile and compared the resultant worst-case MPE levels to the FCC's occupational/controlled exposure limits outlined in OET Bulletin 65. EBI has performed theoretical worst case modeling using RoofView® to estimate the maximum potential power density from each proposed antenna based on worst-case assumptions for the number of antennas and power. All radios at the proposed installation were considered to be running at full power and were uncombined in their RF transmission paths per carrier prescribed configuration. The assumptions used in the modeling are based upon information provided by T-Mobile in the supplied drawings and known configuration values information gathered from other sources to approximate each additional carrier's contribution. There are no collocated carriers on the rooftop. The data for all T-Mobile antennas used in this analysis is shown in Section 3.0. Actual antenna gains for each antenna were used per manufacturer's specifications. All calculations were done with respect to uncontrolled and general public threshold limits. 4 EBI Consulting• 21 B Street ♦ Burlington, MA 01803 • 1.800.786.2346 Sector A A A A A B B B B B C C C C C 3.0 T-Mobile Antenna Inventory Antlna Heipt(ft) PowwPl!r Nunbwol Number Antenna Make Antenna Model AboveNearest Azlmudl (°) Technology Frequency Band Chal!IICII (W) Channels Wallen Surface I Ericsson Air 21 2.0 0 UMTS/GSM PCS-1900 MHz 30 2 2 Ericsson Air32 2.0 0 LTE AWS -2100 MHz 60 2 3 Commscope FFHH-65A-R3 1.6 0 LTE 600 MHz 30 I 3 Commscope FFHH-65A-R3 1.6 0 NR 600 MHz 80 I 3 Commscope FFHH-65A-R3 1.6 0 LTE 700 MHz 30 I I Ericsson Air21 2.0 125 UMTS/GSM PCS -1900 MHz 30 2 2 Ericsson Air 32 2.0 125 LTE AWS -2100 MHz 60 2 3 Commscope FFHH-65A-R3 1.6 125 LTE 600 MHz 30 I 3 Commscope FFHH-65A-R3 1.6 125 NR 600 MHz 80 I 3 Commscope FFHH-65A-R3 1.6 125 LTE 700 MHz 30 I I Ericsson Air21 2.0 245 UMTS/GSM PCS -1900 MHz 30 2 2 Ericsson Air 32 2.0 245 LTE AWS -2100 MHz 60 2 3 Commscope FFHH-65A-R3 1.6 245 LTE 600 MHz 30 I 3 Commscope FFHH-65A-R3 1.6 245 NR 600 MHz 80 I 3 Commscope FFHH-65A-R3 1.6 245 LTE 700 MHz 30 I • This table contains an inventory of only T-Mobile Antennas and Power Values. Note that EBI uses an assumed set of antenna specifications and powers for unknown and other carrier antennas for modeling purposes as detailed in Section 2.0. s EBI Consulting ♦ 21 B Street ♦ Burlington, MA 01803 • 1.800.786.2346 ERP (W) 2057 4615 312 831 350 2057 4615 312 831 350 2057 4615 312 831 350 4.0 Summary and Conclusions All calculations performed for this analysis yielded results that were above the allowable limits for exposure to RF Emissions. Based on predictive modeling, the worst<ase emitted power density may exceed the FCC's general public limit within approximately 22 feet of T-Mobile's proposed antennas at the main roof level. Modeling also indicates that the worst-case emitted power density may exceed the FCC's occupational limit within approximately IO feet of T-Mobile's proposed antennas at the main roof level. Installation of mitigation measures will bring the proposed site into compliance. There are no collocated carriers on the rooftop. The anticipated maximum contribution from each sector of the proposed T-Mobile facility is 4792.5000% of the allowable FCC established general public limit (958.5000% of the FCC occupational limit). This was determined through calculations along a radial from each sector taking full power values into account as well as actual vertical plane antenna gain values per the manufacturers supplied specifications for gain. Based on worst-case predictive modeling, there are no areas at ground level related to the proposed antennas that exceed the FCC's occupational or general public exposure limits at this site. At ground level, the maximum power density generated by the antennas is approximately 21.00% of the FCC's general public limit (4.20% of the FCC's occupational limit). A site is considered out of compliance with FCC regulations if there are areas that exceed the FCC exposure limits and there are no RF hazard mitigation measures in place. Any carrier which has an installation that contributes more than 5% of the applicable MPE must participate in mitigating these RF hazards. For this facility, the composite values calculated were above the allowable I 00% threshold standard per the federal government. EBl's modeling indicates that there are areas in front of the T-Mobile antennas at the rooftop level that exceed the FCC standards for general public and occupational exposure. Based on worst-case predictive modeling, the worst-case emitted power density may exceed the FCC's general public limit within approximately 22 feet of T-Mobile's Sector A, B, and C antennas at the main roof level. Modeling also indicates that the worst-case emitted power density may exceed the FCC's occupational limit within approximately 10 feet of T-Mobile's Sector A, B, and C antennas at the main roof level. In order to alert any workers potentially accessing the site, a blue Notice sign and a yellow Guidelines sign are recommended at the first point(s) of access to the rooftop. To reduce the risk of exposure and/or injury, EBI recommends that access to the rooftop or areas associated with the active antenna installation be restricted and secured where possible. Caution and/or Warning signage is recommended at the site as presented in the Signage Plan -Attachment I . When Warning signs are required, other markings such as painted striping, chains, stanchions, or fencing may also be used to identify the perimeter of each Safety Zone. 6 EBI Consulting ♦ 21 B Street ♦ Burlington, MA 01803 ♦ 1.800.786.2346 Post at Roof Access Points CilD (<~. ~ When Warning signs are required, other markings such as painted striping, chains, stanchions, or fencing may also be used to identify the perimeter of each Safety Zone. ■ T-Mobile Antennas " FCC Public Exposure Limit ■ -SOO <-Expowre l evel D 100 < Exposure level S SOO ■ Exposure level S 100 Attachment I: MPE Analysis and Recommended Signage Si n l~l•SIB!I (<t>) ----.-------.---=::..:.:--- &CAUTION ~ ---:::-..==:=:.= =:=,-2:;:-..:-· Notes: Sign Count NIA s Descri tion Blue Notice Sign Used to notify individuals they are entering an area where the power density emitted from transmitting antennas may exceed the FCC's MPE limit for the general public or occupational exposures. Guidelines Informational sign used to notify workers that there are active antennas installed and provide guidelines for working in RF environments. Yellow Caution Sign Used to notify individuals that they are entering a hot spot where either the general public or occupational FCC's MPE limit is or could be exceeded. Red Warning Sign Used to notify individuals that they are entering a hot zone where either the general public or occupational FCC's MPE limit has been exceeded. Postin Instructions Securely post at all access points to the site in a manner conspicuous to all individuals entering thereon. Securely post at all access points to the site in a manner conspicuous to all individuals entering thereon. Signage not required. Securely post near areas where the general public and occupational MPE limits are exceeded as shown in Attachment I at the site in a manner that prominently alerts occupational workers and the general public of RF emissions. he proposed site will be compliant with the installation of the mitigation easures. he actual number of access points may vary based on documentation provided and/or if a surve as conducted. Recommended signage locations are based on T-Mobile's guidance for the worst ase scenario in each sector. The actual signage installation is dependent on accessibility of th cility and antennas. Locations deemed inaccessible due to OSHA safety standards (proximity t nprotected roof edge or slope, etc.) will be compliant upon installation of recommended signag t the closest accessible point. Attachment 2: RoofView® Export File StMt~~h~,tlCn RoofMaJCY Roof Max X Map Ma,c Y Map Ma.x X Y Offset X Offset Number of Areas envelope Ust Of Areas 210 210 210 210 0 0 I SKSll:SHL.5220 SKSl l.:SHL.5220 SKSll.:SHL.5220 stMts.!tt....o.t• i Standard Method Uptime scale Ftctor Lo..vThr tow Color Midlhr Mid Color HiThr HI Color Over Color Ap ftt Mull > ftt Method 4 2 3 1 100 1 soo 2 sooo 3 3 1.5 1 Start4nt4'1'rta0ata ' It Is advlsableto provk:Je an 10 (ant 1) for all intennas (MHz) Trans Trans Cou Cou Other Input Cllc (ft) (ft) (ft) (ft) dBd 8Wdth Uptime ON 10 N1me Freq Power Count Len Type Loss Power Power Mfg Model X y z Type Aper Gain PtOlr Profile Rog TMOAl UMTS/GSM 1900 30 2 0 0 0 60.0 Ericsson Alr21 33 49 2.0 4,7 15.35 65;0 ON• 1MOA2 LTE 2100 60 2 0 0 0 120.0 Ericsson Alr32 36 47 2.0 4.7 15.85 65;0 ON• TMOA3 LTE 600 30 1 s 1/2 LOF o.s 26.2 Commstope FFHH•65A-R3 38 46 1.6 4.0 10.75 65;0 ON• TMOA3 NR 600 80 1 s 1/2LDF o..s 69.9 Commscope FFHK-65A-R3 38 46 1.6 4.0 10.75 65;0 ON• TMOA3 LTE 700 30 I s 1/2 LOF 0..S 26.2 Commscope FFHH-65A-R3 38 46 1,6 4.0 11.25 61;0 ON• TM081 UMTS/GSM 1900 30 2 0 0 0 60.0 Ericsson Alr21 39 43 2.0 4.7 15.35 65;12S ON• TM082 LTE 2100 60 2 0 0 0 120.0 Et1C>son Alr32 38 41 2.0 4.7 15.85 65;125 ON• TMO83 LTE 600 30 1 s 1/2 LDF 0..S 26.2 Commscope FFHH-65A-R3 37 39 1.6 4.0 10.75 65:125 ON• TM083 NR 600 80 1 s 1/2 LDF 0..S 69.9 Commscope FFHH-65A-R3 37 39 1.6 4.0 10.75 65;125 ON• 1MO83 LTE 700 30 1 s 1/2 LDF 0..S 26.2 Commscope FFHH-65A-R3 37 39 1.6 4.0 11.25 61;12S ON• TMOCI UMTS/GSM 1900 30 2 0 0 0 60.0 &1csson Alr2l 23 44 2.0 4.7 15.35 65;245 ON• TMOC2 LTE 2100 60 2 0 0 0 120.0 Et1C>son Alr32 25 48 2.0 4.7 15.85 65;245 ON• TMOC3 LTE 600 30 1 s 1/2LOF 0.5 26.2 Commscope FFHH-65A-R3 27 52 1.6 4.0 10.75 65;245 ON• TMOC3 NR 600 80 I 5 1/2 LDf 0.5 69.9 Cornrmcope FFHH-6SA-R3 27 52 1.6 4.0 10.75 65;245 ON• TMOO LTE 700 30 I s 1/2 LDf 0.5 : SIMtS>mbolo.t1 l 26.2 Commscope FFHH-65A-R3 27 52 1.6 4.0 11.25 61;245 ON• Sym Map Marte.er Roofx RoofY Map Label Desa1ptlon ( notes for this toble only) Sym s 3S AC Unit Sample symbols Sym 14 s Roof Access Sym 45 5 ACUntt Sym 45 20 Ladder Appendix A: Certifications Preparer Certification I, Erik Johnson, state that 11 • I am an employee of EnviroBusiness Inc. (d/b/a EBI Consulting), which provides RF-EME safety and compliance services to the wireless communications industry. • I have successfully completed RF-EME safety training, and I am aware of the potential hazards from RF-EME and would be classified "occupational" under the FCC regulations. • I am fully aware of and familiar with the Rules and Regulations of both the Federal Communications Commissions (FCC) and the Occupational Safety and Health Administration (OSHA) with regard to Human Exposure to Radio Frequency Radiation. • I have been trained on RF-EME modeling using RoofView® modeling software. • I have reviewed the data provided by the client and incorporated it into this Site Compliance Report such that the information contained in this report is true and accurate to the best of my knowledge. EBI Consulting ♦ 21 B Street ♦ Burlington, MA 01803 ♦ 1.800.786.2346 Appendix B: Federal Communications Commission (FCC) Requirements 12 EBI Consulting ♦ 21 B Street ♦ Burlington, MA 01803 ♦ 1.800.786.2346 All information used in this report was analyzed as a percentage of current Maximum Permissible Exposure (% MPE) as listed in the FCC OET Bulletin 65 Edition 97-0 I and ANSI/IEEE Std C95. I. The FCC regulates Maximum Permissible Exposure in units of microwatts per square centimeter (µW/cm2). The number of µW/cm2 calculated at each sample point is called the power density. The exposure limit for power density varies depending upon the frequencies being utilized. Wireless Carriers and Paging Services use different frequency bands each with different exposure limits, therefore it is necessary to report results and limits in terms of percent MPE rather than power density. All results were compared to the FCC (Federal Communications Commission) radio frequency exposure rules, 47 CFR l.1307(b)(I)-(b)(3), to determine compliance with the Maximum Permissible Exposure (MPE) limits for General Population/Uncontrolled environments as defined below. General population/uncontrolled eXi;>osure limits apply to situations in which the general public may be exposed or in which persons who are exposed as a consequence of their employment may not be made fully aware of the potential for exposure or cannot exercise control over their exposure. Therefore, members of the general public would always be considered under this category when exposure is not employment related, for example, in the case of a telecommunications tower that exposes persons in a nearby residential area. Public exposure to radio frequencies is regulated and enforced in units of microwatts per square centimeter (µW/cm2). The general population exposure limit for the 700 and 800 MHz Bands is 467 µW/cm2 and 567 µW/cm2 respectively, and the general population exposure limit for the PCS and AWS bands is I 000 µW/cm2• Because each carrier will be using different frequency bands, and each frequency band has different exposure limits, it is necessary to report percent of MPE rather than power density. Occupational/controlled exposure limits apply to situations in which persons are exposed as a consequence of their employment and in which those persons who are exposed have been made fully aware of the potential for exposure and can exercise control over their exposure. Occupational/controlled exposure limits also apply where exposure is of a transient nature as a result of incidental passage through a location where exposure levels may be above general population/uncontrolled limits (see below), as long as the exposed person has been made fully aware of the potential for exposure and can exercise control over his or her exposure by leaving the area or by some other appropriate means. A site is considered out of compliance with FCC regulations if there are areas that exceed the FCC exposure limits and there are no RF hazard mitigation measures in place. Any carrier which has an installation that contributes more than 5% of the applicable MPE must participate in mitigating these RF hazards. Additional details can be found in FCC OET 65. 13 EBI Consulting ♦ 21 B Street ♦ Burlington, MA 01803 • 1.800.786.2346 RF-EME Compliance Report EBI Project No. 6219004107 Reviewed and Approved by: sealed 23aug2019 Mlchael A McGuire PE Electrlcal Engineer mike@h2dc.com Site No. S006088 I 096 Laguna Drive, Carlsbad, CA Note that EBl's scope of work is limited to an evaluation of the Radio Frequency -Electromagnetic Energy (RF- EME) field generated by the antennas and broadcast equipment noted in this report. The engineering and design of the structure, as well as the impact of the antennas and broadcast equipment on the structural Integrity of the structure, are specifically excluded from EBl's scope of work. EBI Consulting