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Home My WebLink AboutMCUP 08-24; NEXTEL CA6430F ESCONDIDO CREEK; RADIO FREQUENCY EMISSION SURVEY; 2009-06-15Radio Frequency Emission Survey Sprint:) Tog•lhff with NUTH Site ID: NCA6430R_IEscondido Creek/SD54XC918 Address: 7730 Rancho Santa Fe Rd. San Diego, CA. 92009 Site Survey D,btit=ae-:-: -------==:,::aaJune 15, 2009 CITY OF CARLSBAD Report Date: Planning Director June 16, 2009 ------------~----------------- Case No . .fil_C,~f OfJ·-;>... ~ ----------~-~----------------- Exhibit No.~ Date J (r, lo q Page 2 of 16 Sprint Nextel CA6430 EscondidoCreek/SD54XC918 1. Introduction The electromagnetic spectrum includes various forms of electromagnetic energy from extremely low frequency energy, with very long wavelengths, to x-rays and gamma rays, which have very high frequencies and short wavelengths. In between are radio waves, microwaves, infrared, visible light and ultraviolet, for example. As depicted in Figure 1-1 , the frequencies from Sprint Nextel's equipment emit non- ionizing energy. The effects of non-ionizing energy are non-cumulative. Non-ionizing energy can turn into heat, if absorbed. (By comparison, ionizing energy is generally cumulative and can cause chemical and biological changes.) Frequency (Hertz) Enwgy(tV) .. ,. _____ _.NON -IONIZING I~ -1 ------j ....---IONIZING I I v \I 61 -Poww--U.-----r1-=.n-and--~------r1l-nfra.-red----,l~~ltra-Ylole--t ~,-X-rays--1~-Gamml--RIYI---- Cella Rado I l I, ( ~ I, ~ l ~I. I,. (, I,, (, I,. --l.---1,.--Jv_ I II I,. I., I,, I,, I,, I,. I,. I,. 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 .~ ~ J .J ,J .J I ,l , I J I J I I I I I J l ~ 1, I, I, l J 111 10 10 10 10 10 10 10 10 10 10 10 10 0.1 1 10 10 10 10 10 10 10 10 10 10 10 Figure 1-1 (FCC OET Bulletin 56, Fourth Ed.) FOR SPRINT NEXTEL INTERNAL USE ONLY CONTAINS PROPRIETARY AND CONFIDENTIAL INFORMATION Page 3 of 16 Sprint Nextel CA6430 EscondidoCreek/SD54XC918 Sprint Nextel has installed RF transmitting antennas at the following location (the "wireless telecommunications facility"): 7730 Rancho Santa Fe Rd., San Diego, CA 92009 SITE ID: CA6430/SD54XC918 Lat: 33.0807 Long: -117.236 Facility Type: Rooftop Access Restriction(s): Locked ladder RF Sianaae Tvoe(s): Yes, notice Location: Roof Access Ladder Facility Area Classification: Controlled (Occupational population) Measurement Results Max RF Level in Accessible 9.9% of FCC occupational MPE limit Areas on rooftop : Max RF Level at Surrounding 0.93% of FCC occupational MPE limit Street Level Around Site: FCC Compliance Conclusion: This site is in compliance with FCC limits and guidelines. Table 1-1 Report Summary FOR SPRINT NEXTEL INTERNAL USE ONLY CONTAINS PROPRIETARY AND CONFIDENTIAL INFORMATION Page 4 of 16 Sprint Nextel CA6430 EscondidoCreek/SD54XC918 Sprint Nextel, performed measurement and analysis of the RF environment surrounding the facilities installed by Sprint Nextel at this location. Access to the facility is generally restricted to authorized personnel. Sprint Nextel is licensed by the Federal Communications Commission ("FCC") to provide wireless communications services. As required by the FCC, wireless system operators perform an assessment of the potential human exposure to radio frequency emissions emanating from transmitting antennas at the site. The physical survey verified antenna placement and technical specifications for accurate recommendations to determine compliance with FCC guidelines. Antenna specifications presented herein are based on direct evidence from an antenna or transmitter cabinet, information from the site manager or building manager, information from the licensees, educated estimates by the field technician or a combination of some or all of these sources. A survey was performed on June 15, 2009 at 14:00 to determine the RF emission levels present at the site . Measurements were performed on the areas considered accessible to the occupational population. At this site, additional steps were taken to assess areas accessible to the general population. To measure the RF emissions within the vicinity, Sprint Nextel, utilized NARDA E Field Probe Model 8742D Standard Shaped probe S/N 01048 Frequency Range 300 KHz -3 GHz with NARDA Electromagnetic Survey Meter Model 8712 S/N 03011. Calibration was performed by Narda Microwave on March 5, 2009. FOR SPRINT NEXTEL INTERNAL USE ONL V CONTAINS PROPRIETARY AND CONFIDENTIAL INFORMATION Page 5 of 16 Sprint Nextel CA6430 EscondidoCreek/SD54XC918 2. Technical Specifications: Below are the operational specifications of the antennas located at the site. Physical verification was made to ensure technical specification accuracy. Antenna specifications presented herein are based on direct evidence from an antenna or transmitter cabinet, information from the site manager or building manager, information from the licensees, educated estimates by the field technician or a combination of some or all of these sources. "N/A" (not available) is used if any of the following information was not obtainable or verifiable to an acceptable certainty. Table 2-1 Technical Specifications Freq Down Antenna Type Mfr/Model (MHz) Azimuth Tilt 1 Panel RV65-12-00 BL 806-960 45 2 Panel RV65-12-00 BL 806-960 45 3 Panel RV65-12-00 BL 806-960 45 Andrew UMWD- 4 Panel 65-16-XD-vari03 1900 45 5 Panel RV65-12-10 BL 806-960 150 6 Panel RV65-12-10 BL 806-960 150 7 Panel RV65-12-10 BL 806-960 150 RR65-18- 8 Panel V03DUL2-R 1900 150 9 Panel RV65-12-10 BL 806-960 290 10 Panel RV65-12-10 BL 806-960 290 11 Panel RV65-12-10 BL 806-960 290 Andrew UMWD- 12 Panel 65-16-XD-vari03 1900 290 Table 2-2 Technical Specifications 2.1 Other Wireless Carrier Facilities Ant Freq Down sector Type Mfr/Model (MHz) Azimuth Tilt N/A Panel N/A 1900 N/A N/A N/A Panel N/A 1900 N/A N/A Height 0 23 0 23 0 23 -1 23 0 23 0 23 0 23 0 23 0 23 0 23 0 23 -1 23 Height 23 23 FOR SPRINT NEXTEL INTERNAL USE ONLY CONTAINS PROPRIETARY AND CONFIDENTIAL INFORMATION Carrier Sprint Nextel Sprint Nextel Sprint Nextel Sprint Nextel Sprint Nextel Sprint Nextel Sprint Nextel Sprint Nextel Sprint Nextel Sprint Nextel Sprint Nextel Sprint Nextel Carrier AT&T AT&T Page 6 of 16 Sprint Nextel CA6430 EscondidoCreek/SD54XC918 3. Site Location The map below depicts the location of the Sprint Nextel wireless telecommunications facility. Figure 3-1 Site Location FOR SPRINT NEXTEL INTERNAL USE ONLY CONTAINS PROPRIETARY AND CONFIDENTIAL INFORMATION Page 7 of 16 Si>rint Nextel CA6430 EscondidoCreek/SD54XC918 4. Photos The following photos show the Sprint Nextel wireless telecommunications facility. Sprint Nextel -Sector 1 Sprint Nextel -Sector 2 Sprint Nextel -Sector 3 Roof Access Ladder FOR SPRINT NEXTEL INTERNAL USE ONLY CONTAINS PROPRIETARY AND CONFIDENTIAL INFORMATION Page 9 of 16 Sprint Nextel CA6430 EscondidoCreek/SD54XC918 5. RF Survey RF emission levels were assessed through direct measurements at the transmitter site using properly calibrated field probes. Due to the possibility that Electromagnetic Energy ("EME") fields may exist over a wide frequency range within which the exposure limits vary, field measurements were performed with a meter equipped with a frequency shaped probe that can automatically weigh each field contribution according to its frequency. FOR SPRINT NEXTEL INTERNAL USE ONLY CONTAINS PROPRIETARY AND CONFIDENTIAL INFORMATION Page 10 of 16 Sprint Nextel CA6430 EscondidoCreek/SD54XC918 5. FCC Policy on Human Exposure to RF Emissions The FCC guidelines for human exposure to RF emissions were derived from the recommendations of two expert organizations, the National Council on Radiation Protection and Measurements ("NCRP") and the Institute of Electrical and Electronics Engineers ("IEEE"). The exposure guidelines are based on thresholds for known adverse effects and they incorporate an appropriate margin of safety. The federal health and safety agencies such as the Environmental Protection Agency ("EPA"), the Food and Drug Administration ("FDA"), the National Institute on Occupational Safety and Health ("NIOSH") and the Occupational Safety and Health Administration ("OSHA") have also been actively involved in monitoring and investigating issues related to RF exposure. The FCC 's Maximum Permissible Exposure ("MPE") limits are based on exposure limits (over a wide range of frequencies) recommended by the NCRP and the exposure limits developed by the IEEE and adopted by the American National Standards Institute ("ANSI"). The limits for localized absorption are based on the recommendations of both the ANSI/IEEE and the NCRP. The potential hazard associated with the RF electromagnetic fields is discussed in OET Bulletin No. 56 "Questions and Answers about the Biological Effects and Potential Hazards of Radiofrequency Electromagnetic Fields." This document can be obtained on the FCC website at www.fcc.gov. The table and the graph below represent the FCC limits for both occupational and general population exposures to different radio frequencies: Frequency Occupational General Public Range(f) Exposure Exposure (MHz) 2 2 (mW/cm) (mW/cm) 0.3 -1.34 100 100 1.34 -3.0 100 < 180 / f 3.0 -30 < < 900 I f 180 If 30 -300 1.0 0.2 300 -1,500 f I 300 f I 1500 1,500 -100,000 5.0 1.0 Table 6-1 FCC Limits for Maximum Permissible Exposure 100 10 5 ' ' -OccupationaVControllod Exposure ----Genaro/ PopvlotioNUncontrolled Exposure ✓-- - ------- 0.2 0.1'------,-L---'.........L...----c'c--~,....,,_-_.__,...,,.,.,__=c!c=--'-,,==-' 0.03 0.3 r 3 30 300 13.000 30,000 1300.000 ...._ ---_,.,,"✓✓ ·t.34 '1,500 ·100,000 Frequency (MHz) Graph 6-1 FCC Limits for Maximum Permissible Exposure FOR SPRINT NEXTEL INTERNAL USE ONLY CONTAINS PROPRIETARY AND CONFIDENTIAL INFORMATION Page 11 of 16 Sprint Nextel CA6430 EscondidoCreek/SD54XC918 7. Discussion of Safety Criteria Energy levels associated with the RF radiations are not great enough to cause the ionization of atoms and molecules. "Ionization" is a process by which electrons are stripped from atoms and molecules. This process can produce molecular changes that can lead to damage in biological tissue including effects on DNA, the genetic material. This process requires interaction with high levels of electromagnetic energy. Those types of electromagnetic radiation with enough energy to ionize biological material include x-radiation and gamma radiation. Therefore, x-rays and gamma rays are examples of ionizing radiation (see Section 1 for additional information). RF energy is a type of non-ionizing radiation. Other types of non-ionizing radiation include visible light, infrared radiation and other forms of electromagnetic radiation with relatively low frequencies. Often the term "radiation" is used to apply to ionizing radiation associated with nuclear power plants. Ionizing radiation should not be confused with the lower-energy, non-ionizing radiation with respect to possible biological effects . The RF emissions from antennas used for wireless telecommunications typically result in exposure levels at the site that are well below the limits recommended by the FCC. These limits were adopted by the FCC based on the recommendations of expert organizations and endorsed by agencies of the Federal Government responsible for health and safety. Other antennas, such as those used for radio and television broadcast transmissions, use power levels that are generally higher than those used for wireless antennas. Therefore, in some cases, there could be a potential for higher levels of exposure on the site. However, all broadcast stations are also required to demonstrate compliance with the FCC guidelines. FOR SPRINT NEXTEL INTERNAL USE ONLY CONTAINS PROPRIETARY AND CONFIDENTIAL INFORMATION Page 12 of 16 Sprint Nextel CA6430 EscondidoCreek/SD54XC918 8. Field Measurements 8.1 Roof and Ground Level Measurements A RF emissions survey was performed on the wireless telecommunications facility. This survey included walking the roof and ground area of the structure and noting the maximum average spatial readings encountered. The maximum value of the average spatial readings of RF emissions encountered on the roof level was 9.9% of the Occupational Population Standard within accessible area on rooftop. Below is the layout depicting the actual readings (% of the FCC MPE Occupational Population Standard limits) at various locations at the site. Various measurements were taken to indicate the RF emissions levels that can be encountered by an individual who gains access to the rooftop. FOR SPRINT NEXTEL INTERNAL USE ONLY CONTAINS PROPRIETARY AND CONFIDENTIAL INFORMATION Page 13 of 16 Sprint Nextel CA6430 EscondidoCreek/SD54XC918 Sprint Nextel C 0.018% 0.00% 0.00% Access Ladder 0.31% 0.31% 0.48% 0.22% 0.15% 0.16% 0.14% :$~riHt: Nii?i\Eil ~~~~~~:::::::::::: ;~~:isi\:: $n~$~lfid)i:ata~~!:~~,1~ ~a~ ~~p.o!a~ :a~~v~:: : : : : : : : : : : : : : : : : : : : : : : : l'tjof: : : : : : : : : : : : : : : : : : : : : : : : : 0.33% 0.64% 1.15% Sprint Nextel B 0.18% 0.26% 0.93% Figure 8-1 Site Layout (Not to Scale) FOR SPRINT NEXTEL INTERNAL USE ONL V CONTAINS PROPRIETARY AND CONFIDENTIAL INFORMATION 0.31 % Page 14 of 16 Sprint Nextel CA6430 EsconclidoCreek/SD54XC918 9. Conclusion Compliance with the FCC 's rules on human exposure to RF emIssIons at wireless telecommunications facilities generally is determined by comparing actual measurements taken at the facility to the FCC's MPE limits. The results of the instant survey indicate the level of RF Emissions exposure do not exceed applicable FCC MPE limits. The highest level of RF emissions measured was 9.9% of MPE of the FCC's MPE limits based on the occupational standard. A controlled/occupational environment assumes that access to the facility is generally restricted to authorized personnel and facility management and members of the general public will not be able to access the rooftop wireless telecommunications facility. FOR SPRINT NEXTEL INTERNAL USE ONLY CONTAINS PROPRIETARY AND CONFIDENTIAL INFORMATION Page 15 of 16 Sprint Nextel CA6430 EscondidoCreek/SD54XC918 10. Certification This report was prepared for Sprint Nextel and serves as certification for compliance of the existing Sprint Nextel wireless telecommunications facility. The analysis and information provided herein is based on applicable FCC regulations concerning RF safety and the control of human exposure to RF emissions. The information and analysis contained in this report are accurate and complete to the best knowledge and belief of the undersigned. Survey Completed by: ______ June15,2009 Jay Carrasco -RF Engineer Sprint Nextel Report Prepared by: -------June 15, 2009 Laarni Bugayong -RF Engineer Sprint Nextel FOR SPRINT NEXTEL INTERNAL USE ONL V CONTAINS PROPRIETARY AND CONFIDENTIAL INFORMATION Page 16 of 16 Sprint Nextel CA6430 EscondidoCreek/SD54XC918 Appendix A References • FCC OET Bulletin 65 "Evaluating Compliance with FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Fields," (Edition 97-01 , dated August 1997). FCC OET Bulletin 56 "Questions and Answers about Biological Effects and Potential Hazards of Radiofrequency Electromagnetic Fields," (Fourth Edition, dated August 1999). • FCC "G uidelines for Evaluating the Environmental Effects of Radiofrequency Radiation", ET Docket 93-62, Report and Order, FCC 96-326, adopted August 1, 1996. 61 Federal Register 41006 (1996). • Federal Communications Commission (FCC), Telecommunication Act of 1996, Title VII , Section 704, Facilities Citing; Radio Frequency Emissions Standards. • National Council on Radiation Protection and Measurements (NCRP), "Biological Effects and Exposure Criteria for Radio Frequency Electromagnetic Fields", NCRP Report No. 119, 1993. • American National Standards Institute (ANSI), "Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz," ANSI/IEEE C95.1-1992 (previously issued as IEEE C95.1-1991) • American National Standard Institute (ANSI), "Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, (300 kHz to 100 GHz), ANSI C95.1-1982 FOR SPRINT NEXTEL INTERNAL USE ONL V CONTAINS PROPRIETARY AND CONFIDENTIAL INFORMATION