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AES 7788 Series RF Subscribe Unit -- Installation and Operation Manual ♦ Coaxial cable to antenna must be protected in conduit. ♦ Avoid installing the antenna in close proximity to other metal surfaces, as this may severely impact the performance of the radio communications due to the effects of signal reflections or detuning the antenna. o Remember that pipes, conduit, wiring, ductwork and other metal are commonly installed within walls and could affect performance. o Take into account foil backed insulation and wallpaper. o Metal objects may also be located in adjacent rooms or above ceilings. o Metallic framing is in common use today. Antenna should not be mounted directly over or in close proximity to metal studding. o Metallic supports are in common use today. Antenna should not be rnounted in ceilings constructed of metal beams and supports that may interfere with the RF signal. ♦ The antenna must be grounded properly to help reduce damage due to surges produced by lightning.. Grounding must be done in accordance with local building codes as well as those in accordance with any other authority having jurisdiction ♦ When needed, use higher gain antenna with rated cable and connectors. Mount antenna as high as possible - attics that meet the temperature and humidity range specification can help to improve performance. (See "UHF Antenna Options" listed in section 1 9 for available and approved options.) ♦ Antenna must be mounted in a vertical orientation. ♦ Avoid tightly coiled or bunched coax as this could also affect RF performance. Use Coax length that best fits the installation. NOTE: During installation, the subscriber unit attempts to enroll itself into an available AE.S- IntelliNet network and if successful generates signals at the central station. Central station operators must be forewarned to avoid a false alarm. AES Corporation 1 ? 40 -7788. Rev 3a. 4/9/2009