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Shaw Butte Users Association Technical Standards Adopted (2-16-93) Section I - Technical Standards Committee A. There shall be a permanent Technical Standards Committee (TSC) of the Shaw Butte Users Association. 1. The Technical Standards Committee (TSC) members shall be elected by the SBUA membership. 2. The TSC shall consist of one (1) Chair-person and one (1) person representing each site, with no less than five (5) and no greater than nine (9) members total. 3. SBUA officers shall not be eligible to serve on the TSC. 4. The Chair-person shall serve two (2) years. 5. The Chair-person's business number shall be made available to the general membership to assist members with questions relating to site standards. 6. TSC members shall serve one (1) year terms. 7. The TSC members shall be eligible to run for successive terms, without limit. 8. In the event a TSC member cannot complete their term, (for whatever reason) the Primary Site User shall appoint a replacement. 9. The TSC's responsibilities shall not include road maintenance (Road Committee) standards. B. The function of this committee will be to: 1. Maintain and enforce a set of technical standards, adopted and approved by the SBUA. Adherence to these standards will minimize physical damage and prevent or eliminate RF interference, thus providing for improved electromagnetic compatibility of all Shaw Butte Electronic Site users. 2. Represent the SBUA in technical matters. 1 3. Report to and advise the Executive Board in such matters as: a. Compliance with technical standards. b. Compatibility with existing installations. c. Site inspections. 4. Conduct annual site inspections. 5. Prepare and present a written report of site inspection findings to the Executive Board of the SBUA and the inspected party. 6. Review and update Technical Standards and make recommendations annually for approval by the SBUA membership. 7. The TSC requires that: a. All Electronic Site Users cooperate with the SBUA and TSC in identification, coordination, and elimination of interference related problems. b. When a "newcomer" applies for a permit to install a system, or an existing Primary Electronic Site User applies for an amendment to their site, the TSC Chair-person shall be notified. The notice shall include a data sheet describing the new communications equipment parameters. The TSC will in turn, advise all of the existing Primary Electronic Site Users as to the technical and physical parameters of the proposed system addition. Primary Electronic Site Users may then ascertain if the proposed installation is compatible with their existing system(s). c. All Electronic Site Users shall submit completed Technical Data Sheets(s) describing their equipment, a brief estimate on how active their transmitters are in a twenty four (24) hour period, and a copy of the station FCC license(s). Blank data sheets can be acquired from the TSC. The data sheets include transmitting and receiving frequencies, power output, type control tones, cavity filters, ferrite isolators, antenna type/model/gain/azimuth, and service date. Primary Electronic Site Users with existing equipment shall complete and return the data sheet(s) and copies of FCC station licenses within one year of the creation of the TSC. Existing Primary Electronic Site Users applying for amendments to their site and "newcomer" applicants can submit data sheets to the TSC simultaneously with their FCC filing by including a copy of the FCC application. 2 d. Electronic Site Users will be given a period, not to exceed thirty (30) days from the receipt of the above application, in which to comment to the TSC and the applicant on predicted interference. All comments received will be evaluated by the TSC. e. If technical evaluations reflect that there may be interference problems with other Electronic Site Users, the applicant has up to thirty (30) days to respond to the predicted interference problem. These remedies may include engineering analysis and other pertinent information. A field test for compatibility may be requested at the expense of the applicant. Based on the data submitted by the applicant, the TSC will make a recommendation to the SBUA with supporting rationale. Section II - Structures A. Buildings 1. All buildings shall conform to the latest edition of the "Uniform Building Code," local laws and regulations. 2. All metallic materials used shall be galvanized, plated or coated. Dissimilar metals shall not be placed in contact with each other in a manner that may create galvanic junctions. B. Electrical 1. All electrical facilities, equipment and the installation thereof, shall conform to the most recent edition of the "National Electric Code," local laws and regulations. 2. All external electrical facilities shall conform to the above codes. 3. All permanent AC wiring shall be installed in metallic conduit. C. Towers and Guy Lines 1. All metal towers shall meet current EIA-222 Standards (Structural Standards for Steel Antenna Towers). Wooden structures shall be installed and maintained in accordance with local building codes. 2. All metallic structural materials will be galvanized or plated. Dissimilar metals will not be placed in contact with each other in such a manner that could create galvanic junctions. 3 3. All towers that require guying must be guyed using proper hardware, as stipulated by the tower manufacturer. Bi-metallic contacts must be avoided. Towers must be connected to the site ground with grounding jumpers using either exothermic welding, "listed" (i.e. ANSI, IEEE, UL, etc.) pressure connections, clamps, or other listed means. Connection devices that depend solely on solder shall not be used. Large towers with wide spaced legs (three feet or more) shall have a ground conductor on each leg bonded to the site ground. Minimum conductor size for outside grounding and bonding shall be #2 AWG. Below ground connections must use either an exothermic welding process, (i.e. Cadweld, Burndy, etc.) copper wedge pressure devices (i.e. Ampact, Wrench-lock, etc.) or brazed silver solder (applicable only on copper tubing and copper strap ground systems). 4. It is suggested that towers be inspected and hardware tightened at least once every two years. Inspections should be performed by qualified personnel. All oxidation must be removed, rusty bolts and hardware replaced and guy tension checked. Wooden poles must have all steel attachments galvanized and bonded using the aforementioned processes. 5. Anti-climb devices, removable steps or other means to discourage unauthorized climbing of towers are highly recommended. 6. Guy wires shall not encroach on any power line easement. Proposed placement of guy anchors on neighboring property shall be pre-approved, in writing, by the property owner. 7. No new building, tower or other structure shall be allowed to obstruct an existing microwave path. D. Fences 1. All metal fences shall be galvanized, plated or coated and effectively grounded and bonded to prevent galvanic junctions. E. Site and Equipment Grounding 1. Site grounding must be constructed of copper, with #2 AWG or larger wire or 2" or larger solid copper strap, connected to an adequate site ground electrode system. Guy wires should also be grounded, using manufacturers approved methods to preclude bi-metallic junction and corrosion. All equipment on the site (buildings, towers, power units, transmitters, receivers, antennas, combiners, telephone systems, power cabinets, HVAC units, etc.) must be connected to the site ground. High power operations should use copper strap bonding in accordance with manufactures specifications. The grounding systems shall comply with applicable laws, codes and in accordance with standard engineering practice. 4 F. Miscellaneous Equipment 1. Any miscellaneous equipment that causes harmful interference shall be adequately shielded or removed. Section III - Electronic Equipment A. Transmitters 1. All transmitters shall be FCC Type-Accepted, except amateur radio services covered under Part #97 of the FCC Rules and Regulations, meet type acceptance criteria, and be licensed. 2. All transmitters and receivers will have protective devices, designed into or externally installed, to prevent direct interference with other Electronic Site Users and be specifically designed to operate in a multi-user site. 3. Direct radiation of out-of-band emissions (i.e. transmitter wideband noise, spurious emissions, harmonics, etc.) shall be reduced to a non-interfering level by using band-pass, low-pass, and/or harmonic filtering. Band-reject filtering may be required in certain applications. 4. Re-radiation of intermod signals by a transmitter and its associated antenna system shall be prevented by installing appropriate suppression devices (i.e. ferrite isolators(s) and low-pass filter(s), etc.) exhibiting a minimum isolation of 25dB. 5. The transmitter or radiating antenna must not exceed the maximum output power or ERP for which it is licensed through the FCC. a. If the ERP of the system is greater than or equal to 5000 watts, all transmitted out-of-band emissions must be attenuated below that of the main carrier by an amount determined in the following equation: Power(Db)(out-of-band) <= 43dB + 10 * [Log(Output Power in Watts)] b. If the ERP of the system is less than 5000 watts, all transmitted out-of band emissions must be attenuated below the main carrier by 80dB. Point-to-point or point-multi-point microwave systems are exempt from this requirement. c. To further reduce the possibility of re-radiated out-of-band signals, band-pass filters are required at the output of all transmitters. In the event of interference caused to any service, greater attenuation may be required. 5 6. Transmitting systems shall be checked periodically, including the operation of suppression devices, to assure optimum operating conditions. 7. Continuous duty services (broadcasting, paging, point-to-point microwave, etc.) shall employ only transmitters rated for "continuous duty operation" by the manufacturer. B. Receivers 1. All receivers shall comply with all applicable Parts of the FCC Rules and Regulations, including Parts 2 and 15. 2. All receivers shall have sufficient "front-end" preselection and external cavity filtering, as needed, to control receiver produced intermodulation and adjacent channel interference. C. Antennas 1. All Antennas and associated transmission lines not in immediate use shall be terminated at their characteristic impedance (Zo) to control re-radiation of intercepted signals or noise. 2. All broken and defective antennas shall be removed. D. Transmission Lines 1. Coaxial cable utilized on the exterior of buildings or on towers must be fabricated with a solid outer conductor to prevent stray RF radiation. The coaxial cable shall be jacketed or if not available in jacketed form, be installed in accordance with manufactures specifications. All transmission lines used on the interior of buildings shall be double-braided or solid shielded and jacketed. Double-braided cable shall have over 98.5% shield coverage. 2. Use of "N" or "TNC" connectors is preferred over other non-constant impedance types. Every effort shall be made to prevent the use of coax adapters. 3. All transmission lines, including those not in immediate use shall be terminated at their characteristic impedance (Zo) to prevent re-radiation of intercepted signals or noise. 4. Bare metallic ties are prohibited for securing transmission lines to towers. In the case of large lines, use of stainless steel or galvanized hangers is permitted. 6 5. Protection of equipment from lightning damage is recommended. Coaxial feed-through lightning protectors are recommended on all coaxial cables entering equipment shelters. E. Site Safety 1. Obstacles (i.e. guy cables, gate mechanisms, building overhangs and attachments, barbed security wire, etc.) that presents a danger to pedestrians and vehicles, as determined by the TSC, shall be clearly marked, have appropriate barriers installed, or be removed. F. Housekeeping 1. Housekeeping has environmental, visual, and aesthetic impact. It further has an electromagnetic compatibility impact. Debris which is permitted to remain adrift, and the residue of construction, installation, removal, modification or other evolutions, raise the noise floor which often defies identification. Therefore, no debris shall be allowed to accumulate. Section IV - Annual Inspections 1. All Electronic Site users, shall be in compliance with the Technical Standards within two (2) years. 2. The TSC shall conduct an annual inspection on each communication site. This inspection will verify: a. Compliance with Technical Standards. b. Electromagnetic compatibility. 3. The TSC shall provide written notice of the scheduled inspection date at least thirty (30) days in advance, and each Primary Electronic Site User shall arrange to have a representative available at the site at the time of the inspection. 4. Any non-compliance found shall be recorded by the inspection team and a written copy of the report shall be forwarded to the party or organization in violation within thirty (30) working days following the inspection. The report shall include: a. a description of the violation, 7 b. what corrective measure is required, c. the name, address, and organization of the responsible Electronic Site User, d. the time allowed for completion of corrective measures, e. what action is anticipated in the event of non-compliance with remedial instructions, f. the method, manner, and time allowed to appeal. Section V. - Interference A. Interference 1. All Electronic Site Users shall comply with the Technical Standards within two (2) years. 2. It is the intent of the SBUA that Electronic Site Users affected by interference cases make a dedicated effort to resolve issues by working cooperatively and directly with all involved parties, including the perceived offending party(s) and other complainants. If the interference cannot be resolved despite the best efforts of the involved parties, the TSC chairman shall be apprised of the deadlock, whereupon, the TSC shall act in a disinterested manner by determining and issuing remedial recommendations to the affected party(s). If it is determined that an interference case is caused by equipment of interest to members of the investigative team, they shall voluntarily remove themselves from the team to preclude conflicts of interest. The SBUA emphasizes that, an interfered-with Electronic Site User upon determination that their equipment is not the cause of the interference, may then, notify the presumed interfering user and the TSC. Interference conditions shall be resolved in the following manner with primary responsibility residing with the offending party. a. New Transmitters If interference is assumed to be caused by a new transmitter, the transmitter shall cease operation immediately upon receipt of a complaint from an existing Electronic Site User, until the source of interference is verified and remedied to the satisfaction of the complainant(s). 8 b. Existing Transmitters If interference is assumed to be caused by an existing Electronic Site Users equipment, it shall be allowed to continue operation for a period of time needed for interference emissions testing and verification. When the source of interference is verified, the party responsible for the interference shall cease operation or otherwise remedy the interference to the satisfaction of the complainant(s). Section VI. - Enforcement A. Any non-compliance with these Technical Standards shall be subject to the SBUA Bylaws, title VI, section I. 9