Base Station Antenna Systems 2008 Product Selection Guide - AVW

30–512 MHzFeatures and BenefitsFiberglass Omni AntennasAndrew’s fiberglass omni antennas feature rugged fiberglass radomes to protect the radiatingelements from harsh weather environments. The radome on DB616 and DB640NS is made of 0.25 in thick Aeroglass fiberglass; a materialknown for its use in helicopter rotor blades and racing sailboat masts, as well as Olympicvaulters’ poles. The ASP omni antennas have an extra heavy radome made of Armorweavefiberglass. The DB63x series antenna radomes are made of minimum tip deflection (MTD)fiberglass. Each model is designed to withstand hostile winds. DB616 models are engineered to last by using all metal in the radiators, and either copper orbrass is used in the feed and matching systems to minimize galvanic reaction and reduceintermodulation. These antennas are weather resistant with a gold iridated support pipe madeof 6061-T6 aluminum alloys. Moisture resistant bulkhead connector on the bottom cap, as well as drain plugs in both the topand bottom for upright or inverted mounting provide protection against corrosion. Each antenna easily installs with a no-torsion mount and includes a dc ground.Directional AntennasSelect from Andrew’s DB436 yagi or DB654/DB674 panel antenna families for directional gainadvantages. The yagi models offer great front-to-back ratios. The panel antennas provide exceptionalgain with 1.4:1 or better VSWR and DualPol ® performance in the DB654 model. ASP685 DB640NS-CAdditional Features DB436 antennas can be mounted side-by-side or vertically stacked to provide either vertical orhorizontal polarization. One wavelength of vertical separation is recommended. The antennascan be mounted on opposite sides of the tower to produce a bi-directional pattern, if desired. DB436 models are made of high strength aluminum alloys with stainless steel mountingbrackets and galvanized or stainless steel hardware used for installing the DB254 antennas. DB654 and DB674 antennas feature a sturdy construction with a passivated aluminum backpanel, alodine finish aluminum radiating elements, and a high impact UV and weather resistantABS plastic radome. DB674G65A-CAndrew Wireless Solutions www.andrew.com57