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HomeMy WebLinkAbout859 Cowan Road - Applicationt-1��� ���+�'y- ;Sl! f; ii [v:.:A!qf: (t�,� +��' J ;;'�` - COMMUNITY DEVELOPMENT DEPARTMENT � 5O1 PRIMROSE ROAD � BURLINGAME, CA 94010 p: 650.558.7250 • f: 650.696.3790 • www.burlingame.org ',I APPLICATION T� THE PLANNING COMMISSIDN Type of application: ❑ Design Review ❑ Variance ❑ Parcel #: ❑ Conditional Use Permit ❑ Special Permit � Zoning / Other: PROJECT ADDRESS: 8'� COWAN RD APPLICANT Name: GREG DAVI� - AT&T Address: 350 WAYNE PLACE #3 CitylStatelZip: OAKLAND CA 94606 Phone: (415) 830-2003 E-mail: 9davis@j5ip.com ARCHITECT/DESIGNER Name: EBI Address: 2d30 MAIN ST. SUITE 200 City/State/Zip: �RVINE CA 92614 Phone: �g`�g) 247-7767 EXT. 116 E-mail: Jfitzsimons@j5ip.com c�8urlingame Business License #: PROPERTY OWNER Name: RODF�N ifvVESTIViENTS LL� Address: 8�9 COWAN RD City/State/Zip: BURLINGAME CA 94010 Phone: E-mail: _,_„ ,z:. ,,,z. �� , r +;�_�_ ;j': ;,s .^ ���t����� ,�J:; ;.,�. a ���,v��' � �=Fg 1 � Z019 r�o-;�� �� F��lRLINGAME -,,� i Authorization to Rearoduce Proiect Plans: I hereby grant the City of Burlingame the authority to reproduce upon request and/or post plans submitted with this application on the City's website as part of the Planning approval process and waive any claims against the City arising out of or related to such action. (Initials of Architect/Designer) PROJECT DESCRIPTION: SWAP (4} EXISTING ANTENNAS FOR {4) NEW ANTENNAS INSTALL NEW RRU'S. INSTALL FIBER RUN TO EQUIPMENT AREA. AFFIDAVIT/SIGNATURE: I hereby ce�tify under penalty of perjury that the information given herein is true and correct to the best of my knowledge and belief. " � Qpplicant's signature: '' ��� Date: 2� �l� I am aware of the proposed application and hereby authorize the above applicant to submit this application to the Planning Commission. Property owner's signature: �� �T7���� �ETT� G�'��TffL{���?/��G�O Date submitted: L I��` �� 5: �HANDOUTS jPC Application. doc This Space for CDD Si�n i;se aniy � Project Description: Abbreviation Term CUP Conditional Use Permit DHE Declinin Hei ht Envelope DSR Desi n Review E Existin N New SFD Sin le Famil Dwellin SP Special Permit �� ��a��� ���� ����� ` c�€Q s��� �,��; c��;r�c°�s�aa��� ���� t�'�.���: ����r��; ca� �� �� rs�������� t��� �����€ �� �,-�-�. �����:� �'t`R�:l:�?�i�E ���:AC���f�i�' � � �. . r �:.�� �. �. x �;:o.,. ��������� FEB � � ?7'g CITY OF EiURL�NG�',i�^�= LDD-�LAt�Ni;VG uitf. 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' .: � . .� � �� �3 . � � � i.:� . ....a�`c � r � _ u. ._ _ . � �`A6'd �, . . . �.� f � �� � � , fk:! �`,. ,. . � PHOTOSIMULATION � � _ CCL02062 859 COWAN RD BURLINGAME CA 94010 I VIEWS at�C� � :*��s . . .;>K, `. .; `- : . v �- �`.:� � � ,e�, .. . ., ;-. � ,. .< -,„� :. . . . � -�� � � �� � . . . .. s �� � �� . m �� � . >`�. atua -: ��� � t. "�3 #R 4'� Y ... -. Fi � . � �� . . .. . . � � , �� _ &Nn.� ,� ������� '�� �..�..�.�� ._ �iw ... .� .� :� � � � �� ,.;� _� � � �:y�_ ' t ' - �: �_ ��: ��_ � ����:�� ��.� � �°`�F.� �� ��° � x �� � ` ` ��� ��� � �� ��� �. . � � �� ;� � � _ �. � .,,�.. �� , � � ��,- � s;' � i �", y , .,7�. � d ; ,, Uw,��.�,,�� � � �� � � _ �.���« �. � t �,. ' T a �'N�A'"�� k� � � ' , raa�i � r .: . � u~�;..� � . ��. �r �� _ .F' , _ _ � .. � . _� ��A�' d�d �a'�i��l 1 ��;.. 5���:a , ��- US; � ��+ ' ,i�� Sii� �'�� ; .: Le��r�: : � � �I.6l� � ��� ,. ... ,._:' 1� ! �, i"�':. . , �.�;9P'"9�1�'��� �fi''��; .. . ���;�#�i"�' �CJ76'� ",i .� ' : i ,�r��r �����;�°. SF Airport, Miilbrae Ave 8� Hwy CCU2062 118$59 1329$b63 Rooftop 859 Cowan Road Dupl San Mateo, CA 94010 37.60157 -122.37545 December 01, 2017 Casey Chan C-'r-���r�r��� �y. � �. � --„ � ��� e 3�?,�.��t s � �: " sa'�':j,... � r'�' � ,�" - �w... _ ..� � � � � � � � �,__ �� � �_�� � „ ��. � � '� � e�"1���� �" �@� ��� B �. � Z.0'; 9 ,.�?LItJGn��E Prepared for: ATB�T Mobility c/o Caldwell Compliance, Inc. 6900 Koll Center Parkway. Ste. 401 Pleasanton, CA 94566 Site Overview and Description • The antennas are mounted on a rooftop • The site consists of two (2) sectors with a total of four (4) antennas • The site is not co-located � Compiiant with recommendations OSC Engineerrnq Inc. Page 2/14 Compliance Notes Occupdtional Safety 8� Compiiance Engineering (OSC Engineering) has been contracted by Caldwell Compliance, Inc. to conduct an RF (radio frequency) computer simulated analysis. The Federal Communications Commission (FCC) has set limits on RF energy exposed to humans on a wireless cell site in order to ensure safety. The FCC has also mandated that all RF wireless sites must be in compliance with the FCC limits and a compliance check shouid be performed annually to ensure site compliance. This report is an in depth analysis summarizing the results of the RF modeling provided to us by AT&T and in relation to relevant FCC RF compliance standards. A reanalysis is recommended upon the site going on air. OSC Engineering uses the FCC OET-65 as well as AT&T Standards to make recommendations based on results and information gathered from drawings and Radio Frequency Data Sheets. For this report, OSC Engineering utilized RoofviewC� software for the theoretical analysis of the AT8�T Cellular Facility. A site-specific compliance plan is recommended for each transmitting site. This reporf serves as a single piece of the overall compliance plan. Information utilized for this report: RFDS: DWGs: SAN-FRANCISCO-SACRAMENTO_SAN-FRANCISCO_CCU2062_2016-eNode- B_LTE_km477n 3701 A069AE_13298663_118359_03-28-2016_Final- Approved_v6.00 (1) 13298663_MRSFR030149_CCL002062_SA_AE201 100 CD'S-EBI-170925 For the purpose of theoretical simulation, OSC Engineering models antennas as if they are operating at full power (100% capacity). This assumption yields more conservative (higher) results. On-site measurements may yield different results, as antennas do not always operate at full capacity. To the right is a result diagram of the site in question. The diagram is a color-coded map per ND-00059 levels, which coincide with FCC MPE Limits. Any exposure resulting in a level higher than 100% exceeds the Limits and requires further action, such as barriers. A level exceeding 100% does not make a site out of compliance. All results are given in General Population percentages even when a site may be considered Occupational. OSC Engineering Inc. Page 3/14 Compliance Results of the Proposed Site (theoretical simulation� Max RF Exposure Level from (AT8�T antennas @ roof� 4596.2 % FCC General Population MPE Limit Max RF Exposure Levei simulated �AT&T antennas @ ground� 64.9 % FCC General Population MPE Limit OSC Enginee,�ing Inc. Page 4/14 FCC Requlations andl Guidelines from OET 65 When considering the contributions to field strength or power density from other RF sources, care should be taken to ensure that such variables as reflection and re-radiation are considered. in cases involving very complex sites predictions of RF fields may not be possible, and a measurement survey may be necessary The process for determining compiiance for other situations can be similarly accomplished using the techniques described in this section and in Supplement A to this bulletin that deals with radio and television broadcast operations. However, as mentioned above, at very complex sites measurements may be necessary. In the simple example shown in the below diagram, it i5 desired to determine the power density at a given location X meters from the base of a tower on which are mounted two antennas. One antenna is a CMRS antenna with several channels, and the other is an FM broadcast antenna. The system parameters that must be known are the total ERP for each antenna and the operating frequencies (to determine which MPE limits apply). The heights above ground level for each antenna, H1 and H2, m�st be known in order to caiculate the distances, R1 and R2, from the antennas to the point of interest.' � t�l11C'llilil � HJ H� l � l�111C'!1/�ll 7 1� � I2� t'r�irtt c��tnterc.st � h' Z »> � OET Bulietin 65, Evaluating Compliance with FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Fields, Page 37- 38 OS` Ergineering lr,c. Page 5/14 Computer Simulation Analysis The Federal Communications Commission (FCC) governs the telecommunications services, facilities, and devices used by the pubiic, industrial and state organizations in the United States. "RoofViewC� is a software analysis tool for evaluating radiofrequency (RF) field leveis at roof-top telecommunications sites produced by vertical collinear antennas of the type commonly used in the cellular, paging, PCS, ESMR and conventional two-way radio communications services."2 "RF near-fieid leveis are computed from selected antennas by applying a cylindrical model that takes into account the antenna's aperture height, mounting height above the roof, azimuthal beam width for directional antennas and the location of the antennas on the roof Resulting, spatiaily averaged power densities are expressed as a percentage of a user selectable exposure limit depending on frequency. The entire roof is composed of one-square-foot pixels and RF fields are computed for each of these pixels for each selected antenna."3 Computer simulations produced for clients are simulated with "Uptime = 100%". This means that all transmitters associated with an antennq are considered to be "on". 4 RoofViewC� uses a near-field method of computing the field based on assuming that the total input power delivered to the antenna, at its input terminal, is distributed over an imaginary cylindrical surface surrounding the antenna. The height of the cylinder is equal to the aperture height of the antenna while the radius is simply the distance from the antenna at which the field power density is to be computed. Within the aperfure of the antenna, this approximation is quite accurate but as the antenna is elevated above the region of interest, the model output must be corrected for mounting height. 5 h 2 Roofview User Guide 4.15, Page 7, Richard A Tell Associates 3 Roofview User Guide 4.15, Page 7, Richard A Tell Associates 4 Roofview User Guide 4.15, Page 10, Richard A Tell Associates 5 Roofview User Guide 4.15, Page 45, Richard A Tell Associates OSC Engrreering I,nc. $s P 2�Rh Page 6/14 Certification The undersigned is a Professional Engineer, holding a California Registration No. 1967I Reviewed and approved by: �� r� .,� �, e ,��' � �, �' k`` �;� ;,� , .� � P ,��� � ` �, �s•�`"""`. ,' r ..� �a , ,° � , �•��� i � ,��,�, ��a+,�s""`. .:., a, i,. ` '< �J �IiI��. ��. � � �' � � ,c ' , �:� t � n 'fi a,r �. .�.r� ) � ��; ti�'.u. � �'', �a' y• 1 ` { {c;, John B. Bachoua, PE Date: January 12, 2017 The engineering and design of all related structures as well as the impact of the antennas on the structural integrity of the design are specifically excluded from this report's scope of work. This report's scope of work is limited to an evaluation of the Electromagnetic Energy (EME) RF emissions field generated by the antennas listed in this report. When client and others have supplied data, it is assumed to be correct. OSC Engineering tnc. Page 7/14 FCC MPE Limits (from OET-65,� OSC Engineering uses the FCC's and clients' guidelines to model the computer simulation. Explained in detail in Office of Engineering 8� Technology, Bulletin No. 65 ("OET-65") "Evaluating Compliance with FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Radiation". Occupaflonal/controlled6 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 fuily aware of the potential for exposure and can exercise control over their exposure. Occupational/controlled exposure limits aiso apply where exposure is of a transient nature as a result of incidental passage through a location where exposure leveis may be above general pop�lation/uncontrolied 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. As discussed later, the occupational/controlled exposure limits also apply to amateur radio operators and members of their immediate household. General populaflon/unconfrolled� exposure 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 areQ. 6 OET-65 "Evaluating Compliance with FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Fields pg. 9. ' OET-65 "Evaluating Comptiance with FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Fields pg. 9. OSC Engir,eerin_q tnc. Page 8/14 Limits for Maximum Permissible Exposure (MPE� "The FCC Exposure limits are based on data showing that the human body absorbs RF energy at some frequencies more efficiently than at others. The most restrictive limits occur in the frequency range of 30-300MHz where whole-body absorption of RF energy by human beings is most efficient. At other frequencies whole-body absorption is less efficient, and, consequently, the MPE limits are less restrictive."9 (A) timits for Occupafiionai/Controlled Exposure Frec�v�ur�c�y E3;.c�i;ic rie'�i � ��1�ai�r�e�ic� Fie!d ��c.;ti�✓er D�n:ifiy (Sj �ver���:;r�� iim� ��n�� �t�1wz) �tr�r,�:t1� gEj fv�n�� �tr�n�tp ��;) (��Im� �n�'v'�J1cn�-1 � E � �-', � � � = c�r � �,�...._.�„�r�..,�.,�.�..� .�.�.�. .__....�.�.�... „�.,...._...a�minu€es ...�.�...,.�....... 0.3-;3.t� � l d i,53 (1 t,�`�j '� f� 3.D-3o 1 �-�2f f �a.89/f �9v!:)J�<) � 5 32-� 0� 5l .� t�.1 b3 1.� � 3GC�-15C� -- -- f/��r� � 1 �OC�- � 00,�00 -. -- 5 � �B) limits for Genera} Population JUncontr�lled Exposure �!"GC�u�1C'j ��j�.G�;'!� �9�'Cj fV�C_'.t�i 1E'�!{: ri�{C� �Y�,•,<.Me�PO�^,fC�' �r'I15ify f � � AV�?I'G�Jf .�j �� _ a �ftr. �c�nr�p �t��Hz�) str�n���h (E) (v!m) �tr�:�:�i�i ��i) ��+/n�7� (r��v��Ocr����'-a 1 E j �, � ��i � = ��r �� ��.�..., �..��...�,.....�W....�.�,. �� mir7u`es) ..�,u�,..�..�, 0.3-i.3�! 1,94 3.63 �1��). �i� i.�4-3(� 82�Jf 2,1 �Jf j 1���/€-} � • ;�o �C�- ��� 27.5 Q.073 U.2 ��1 :3C1C?-a �t�� -- -- f11�5�0 ,�C} 1 �t��-; C?�?,�0� -- -- 3 .0 ?p f= rr�c;�u�;ncy in P•{1N3 �..��.��.���*fl ari�-:*����e �c;�.�i�m��:;-3t �o����r cier�5ity � � OET-65 "FCC Guidelines Table 1 pg. 72. 9 OET-65 "FCC Guidelines for Evaluating Exposure to RF Emissions", pg. 8 OSC Engineering lnc. Page 9/14 Limits for Maximum Permissible Exposure �MP� continued �� Fi �q,rre 1. FCG L�n�lts forhlaximum Fermissil�le Exposura (��1FcJ P6tar�e-tii2�ve Equrv��lerrt Pc�tver Densrt}� �� Clcc�p�t�cnatCon�rc�'eclExpvsure�.__._._ , f ---- Ge^�r.�l�ot�:r'�'icn:Vrrc'orr��'�rziExpr:sure` �� �. � � tl.Q� 3 } 3 °-0 3C}4 � 3,CtL?0 �O,CkitT �! �pt7,GC�0 � { i. �-t 1, �OD fCQ OCt� Trequency (fviHz) "MPE Limits are defined in terms of power density (units of milliwatts per centimeter squared: mW/cm2), electric fieid strength (units of volts per meter: V/m) and magnetic �eld strength (units of amperes per meter: A/m). In the far-field of a transmitting antenna, where the electric field vector (E), the magnetic field vector (H), and the direction of propagation can be considered to be ail mutually orthogonal ("[plane-wave" conditions), these quantities are related by the foilowing equation: ^� ;� '� _,. � ? . � � � � ��� ����zer�: S = g���,�er c�a��-it�r �ii���f�c���`} � = eEe�#ric ��i� �tr�tl�c�z �'4'�+nj� H = i�i;����et�c fie��� str�F���� ��.an�� �� OET-65 "FCC Guidelines Table 1 pg. 72. OSC Engineerrng Inc. Page 10/14 . � fl ` ,� �____� Limitations OSC Engineering completed this evaluation analysis based on information and data provided by the client. The data provided by the client is assumed to be accurate. Estimates of the unknown, standard, and additional transmitting sites are noted and based on FCC regulation and ciient requirements. These are estimated to the best of our professional knowledge. This reporf is completed by OSC Engineering to determine whether the wireless communications facility complies with the Federal Communications Commission �FCC) Radio Frequency (RF) Safety Guidelines. The Office of Engineering and Technology (OET-65) Evaluating Compliance with FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Radiation has been prepared to provide assistance in determining whether proposed or existing transmitting facilities, operations or devices comply with limits for human exposure to radiofrequency (RF) fields adopted by the Federal Communications Commission (FCC)>>. As each site is getting upgraded and changed, this report wiil become obsolete as this report is based on current information per the client, per the date of the report. Use of this document will not hold OSC Engineering Inc. nor it's employees liable legally or otherwise. This report shall not be used as a determination as to what is safe or unsafe on a given site. Aii workers or other people accessing any transmitting site should have proper EME awareness training. This includes, but is not limited to, obeying posted signage, keeping a minimum distance from antennas, watching EME awareness videos and formal classroom training. >> OET-65 "FCC Guidelines for Evaluating Exposure to RF Emissions", pg. 1 OSC Engrneering Inc. Page 11/14 EH&S and OSHA Barrier Consideration Environmental, Health and Safety (EH8�S) guidelines prohibit construction of RF safety barriers that extend to, or are within the 6-ft setback from, unprotected roof edges but do not meet the OSHA fall protection requirements of 29 CFR 1910.23 and 29 CFR 1926.500 through 1926.503. The following details are intended to assist AT8�T RF safety engineers and RSVs in meeting the AT8�T Mobility RF safety compliance guidelines as defined in ND-00059. Whereas, AT8�T employees and contractors working within 6 ft. from an unprotected roof edge must foilow OSHA guidelines with respect to fall protection and roof line safety.12 For Clarity: Unprotected roof edge refers to a parapet less than thirty-six (36) inches in height. �Z RF Safety Barrier 6-ft Rule v3_ehsemts_EHS cmts ws, "Installing Radio Frequency (RF) safety barriers on roofs with unprotected edges job aid" Page 1 Overvie�v OSC Eng;r,eering tnc. Page 12/14 AT8�T Antenna Shut-Down Protocol AT8�T provides Lockout/Tagout (LOTO) procedures in Section 9.413 (9.4.1- 9.4.9) in the ND•00059. These procedures are to be followed in the event of anyone who needs access at or in the vicinity of transmitting AT&T antennas. Contact AT&T when accessing the rooftop near the transmitting antennas. Below is information regarding when to contcct an AT8�T representative. 9.4.7 Maintenance work being performed near transmitting antennas Whenever anyone is working within close proximity to the transmitting antenna(sj, the antenna sector, multiple sectors, or entire cell site may need to be shut down to ensure compliance with the applicable FCC MPE limit. This work may include but is not limited to structural repairs, painting or non-RF equipment services by AT&T personnel/contractors or the owner of a tower, water tank, rooftop, or other low-centeriine sites. The particular method of energy control will depend on the scope of work (e.g., duration, impact to the antenna or transmission cabiing, etc.J and potential for RF levels to exceed the FCC MPE limits for General Population/Uncontrolled environments 9.4.8 AT&T Employees and Contractors AT8�T employees and contractors performing work on AT8�T cell sites must be trained in RF awareness and must exercise control over their exposure to ensure compliance with the FCC MPE limit for Occupational/Controiled Environments ("Occupational MPE Limit"). The rule of staying at least 3 feet from antennas is no longer always adequate to prevent exposure above the Occupational MPE Limit. That general rule was applied early in the development of cellular when omni-directional antennas were primarily used and later when wide-beamwidth antennas were used. That application was then appropriate for the Occupational exposure category. However, the current prevalence of antennas with 60- and 70- degree horizontal half-power beamwidths at urban and suburban GSM and UMTS/HSDPA sites raises some question about the continued reliability of the 3-foot rule. Antennas with low bottom-tip heights and total input powers around 70-80 W can produce exposure levels exceeding the Occupational MPE Limits at 4 feet, and these levels can be augmented by emissions of co-located operators. Therefore, AT8�T employees and contractors should apply the above general work procedures and use an RF personal monitor to assess exposure levels within the work vicinity. 9.4.9 Other Inc(dental Workers Ali other incidental workers who are not trained in RF safety are considered general public and subject to the FCC MPE limits for General Population/Uncontrolled Environments. In such instance, the M-RFSC (primary contact) or R-RFSC (secondary contact) must refer to the Mobility RF site survey pian to assess the potential RF exposure levels associated with the antenna system. If capable of exceeding the FCC General Population/Uncontroiled MPE limit, then local sector/site shutdown is necessary. The FE/FT must also follow the local shutdown procedure and use their RF personal monitor as a screening tool for verification, as necessary. 13 ND-00059_Rev_5.1 "LockoutlTagout (LOTO) Procedures" Page 45. OSC Engineering lnc. Page 13/14 RECOMMENDATIONS •Access Point information 1 Sign @ all roof access point(s) (to be posted) •AT8�T Sector 6 To be insfialled: a physical barrier on all sides of s�ctor from antennas to edge of roof with Caution #2 signs on all approaching sides of physical barrier if the parapet is less than 36" in height: Barriers must be built a minimum of 6 feet away from the roof edge to comply with OSHA safety stc,ndards • AT8�T Sector G To be insfalied: a physical barrier on all sides of sector from antennas to edge of roof with Caution #2 signs on all approaching sides of physical barrier If the parapet is less than 36" in height: Barriers must be built a minimum of 6 feet away from the roof edge to comply with OSHA safety standards � ,.�_._ . , �m,. 'S tF i�. _. � .. Si`c tJCmo; `. , ,��_ . , �` _ _ ._ k exist�n� �irn ' , ,� : l � '� SectorG A`•' �.` ' ' , � ' 305° %� `�, .,1� t.�'..�-�-� I _ t �,,?' , �� "Post af alI •�a x : �� � - =� roaf access ! �� 's �;�� i poin!(sj � • ' r �"��p � `' `x _....,� ` k r � � t�,�-�/ � ; �ir..� r�a � � � s t� o �, ��, � �«. ! t�;'.� �" '� �� � a`..� . ��j'j•� ���� � `� �y��. - :.. ! 4 � ��/* f, i ,l�:"t r�. t� .t.,��;. ', 's� I, ss�;.a s ;, �3 ' `-, ` ,�r.,:r,-n, cAUT�ox � I ��t , g� ��,>�': i ' �_`'� F, _. f_i7 ��! Cr; . , j � - ?4v "$'��� j'.i�t �`a. "'h. . .-.. � ...` ,,, q� � ,..� " •acaunora - � e'�� � � *� � �I �..i rn�� j � r �'� k t � � I �,� ; r�� ! ., ' �.,..�----= �' i c.�:,.,, � �� ' � "2,�� 5�ctor8 i C� . �,..s d y � � �� v��- ,.s s,,;�� 0 20' t 0 � _ . _, . ._...__. _ _.._. ..__ _. _.._......_.. ._ .... _.. .___... __._ _.. .. _._.._.. ._.. _ _.... .......w... .. ... ..... ....: If work is being performed in the vicinity of the transmitting antennas, site shut-down procedures must be� followed. See page entitled AT8�T Antenna Shut-down protocol for further information. �SC Enginnerr'ng Inc. Page 14/ 14