Terminology. In addition to the terms defined in §
205-4, Definitions, of this chapter, the following words, which are technical terms applying to wireless communications facilities, shall have the meanings indicated below. Although set forth here for convenience, the terms shall have the same effect as if set forth in §
205-4, Definitions.
ABANDONED TOWERA tower not being used for the purpose for which it was permitted for a period of 12 months. Failure to file the annual declaration with the Westminster Select Board shall constitute an abandonment of the tower.
[Amended 11-16-2021 STM by Art. 4]
ACTThe Federal Telecommunications Act of 1996.
ADEQUATE COVERAGECoverage is adequate within that area surrounding a base station where the predicted or measured median field strength of the transmitted signal is such that the majority of the time transceivers properly installed and operated will be able to communicate with the base station without objectionable noise (or excessive bit-error-rate for digital) and without calls being dropped. In the case of cellular communications in a rural environment, this would be signal strength of at least 90 DBMs. It is acceptable for there to be minor temporary loss of signal within the area of adequate coverage. The outer boundary of the area of adequate coverage is that location past which the signal does not regain uniformly.
ANTENNAA device by which electromagnetic waves are sent or received, whether a dish, rod, mast, pole, set of wires, plate, panel, line, cable or other arrangement serving such purpose.
ANTENNA SUPPORT STRUCTUREAny pole, telescoping mast, tower tripod, or any other structure which supports a device used in the transmitting and/or receiving of electromagnetic waves.
AVAILABLE SPACEThe space on a tower or other structure to which antennas of a wireless communications service provider are able to fit structurally and be able to provide adequate coverage.
BASE STATIONThe primary sending and receiving site in a telecommunications facility network. More than one base station and/or more than one variety of telecommunications provider may be located on a single tower or structure.
BUILDING FOR EQUIPMENT SHELTERAn enclosed structure used to contain batteries, electrical equipment, telephone lines, transmitters, etc. used by the carriers on the towers.
BUILDING-MOUNTED ANTENNA SUPPORT STRUCTUREAny antenna support structure mounted on, erected on, or supported in whole or part by a building or structure occupied and/or used for purposes other than wireless telecommunications.
CAMOUFLAGEDA wireless service facility that is placed within an existing or proposed structure disguised, painted, colored, or hidden by a compatible part of an existing or proposed structure, or made to resemble an architectural feature of the building or structure on which it is placed. The term "stealth" is sometimes used as a synonym for "camouflaged."
CARRIERA company, authorized by the FCC, that provides wireless communications services.
CHANNELOne of the assigned bands of radio frequencies as defined in the Act, licensed to the service provider for wireless service use.
COLLOCATIONThe use of a single mount by more than one carrier and/or several mounts on a building or structure by more than one carrier. Each service on a collocation is a separate wireless service facility.
COMMUNICATIONS EQUIPMENT SHELTERA structure designed principally to enclose equipment used in connection with wireless communications transmission, and/or reception.
COMMUNICATIONS TOWERA monopole or self-supporting tower, constructed as a freestanding structure or in association with a building, other permanent structure or equipment, containing one or more antennas intended for transmitting and/or receiving wireless communications.
CONCEALEDA wireless service facility within a building or other structure, which is not visible from outside the structure.
CONSULTANTA qualified engineer licensed in the Commonwealth of Massachusetts, selected by the ZBA or DAC at the expense of the applicant to review the application and verify that the new tower is necessary at the proposed site, or any other review required under this section or requested by the ZBA or DAC, as the case may be.
DACDesign Advisory Committee.
DBMA unit of measure of the power level of an electromagnetic signal expressed in decibels referenced to one milliwatt.
dBuUnit of measure of the electric field strength of a signal, expressed in an absolute measure for describing service areas and comparing different transmitting facilities independent of the many variables (See "DBM" above.) introduced by different receiver configurations.
EASee "Environmental Assessment."
EMERGENCY POWERElectrical generators usually powered by propane gas or diesel fuel so as to provide uninterrupted service in the case of electrical utility failure, provided that any generators used may not emit more than 35 decibels over the ambient noise level at the property line.
ENVIRONMENTAL ASSESSMENTAn EA is the document required by the FCC and NEPA when a personal wireless facility is placed in certain designated areas.
FAAFederal Aviation Administration.
FACILITY SITEA conforming lot or parcel, or any part thereof, which is owned or leased by one or more wireless communications providers and upon which one or more wireless communications facility(s) and required landscaping are located.
FALL ZONEThe area on the ground within a prescribed radius from the base of a tower, typically the area within which there is a potential hazard from falling debris, or collapsing material.
FCCFederal Communications Commission.
FREQUENCYThe number of cycles completed each second by an electromagnetic wave, measured in hertz (Hz), megahertz (MHz, one million hertz), or gigahertz (GHz, one billion hertz).
HERTZOne hertz (Hz) is the frequency of an electric or magnetic field which reverses polarity once each second, or one cycle per second.
LATTICE TOWERSA type of mount that is self-supporting with multiple legs and crossbracing of structural steel.
MODIFICATION OF AN EXISTING FACILITYAny material change or proposed change to an existing facility, including but not limited to power input or output, number of antennas, change in antenna type or model, repositioning of antenna(s), removal or replacement of transmission equipment, colocation of new transmission equipment, or change in number of channels per antenna above the maximum number approved under an existing permit or special permit.
[Amended STM 11-29-2012 by Art. 13]
MONITORINGThe measurement, by the use of instruments away from the antenna, of the electromagnetic radiation from a site as a whole, or from individual wireless communications facilities, towers, antennas, repeaters or associated power supplies and generators.
MONOPOLEA single self-supporting vertical pole with no guy wire anchors, usually consisting of a galvanized or other unpainted metal, or a wooden pole with below grade foundations.
NEPANational Environmental Policy Act.
REPEATERA small receiver/relay transmitter of not more than 20 watts output designed to provide service to areas which are not able to receive adequate coverage from the primary sending and receiving site in a wireless communications network.
RFIRadio frequency interference.
RFRRadio frequency radiation.
SCENIC VIEWA wide-angle or panoramic field of sight and may include natural and/or man-made structures and activities which may be seen from a stationary viewpoint or as one travels along a roadway, waterway, or path, and may be to an object in the distance, such as a mountain, or an object nearby, such as an historic building or a pond.
SPECIAL PERMITA permit under this section and §
205-50 of this chapter as granted by the Zoning Board of Appeals (ZBA).
SPECTRUMRelating to any transmissions or reception of electromagnetic waves.
STRUCTURALLY ABLEThe determination that a tower or structure is capable of carrying the load imposed by the proposed new antenna(s) under all reasonable predictable conditions as determined by professional structural engineering analysis.
TOWERA structure or framework, or monopole, that is designed to support wireless communications transmitting, receiving, and/or relaying, antennas and/or equipment. Components of the wireless communications facility used only to attach or support other elements of that facility are excluded, provided such components are relatively less substantial than those other elements and do not materially affect a dimension of that facility.
TOWER HEIGHTThe vertical distance measured from the base of the tower support structure to the highest point of the structure. If the support structure is on a sloped grade, then the average between the highest and lowest grades shall be used in calculating the tower height.
TOWNWestminster, Massachusetts, and/or its elected or appointed officials.
WCFODWireless Communications Facilities Overlay District.
WIRELESS COMMUNICATIONS FACILITYAll equipment, buildings, and structures with which a wireless communications service carrier broadcasts and receives the radio-frequency waves which carry their services and all locations of said equipment or any part thereof.
WIRELESS COMMUNICATIONS SERVICESCommercial mobile radio services, unlicensed wireless services, and common carrier wireless exchange access services as defined in the Act.
ZBAZoning Board of Appeals.