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 Remember that all parabolic antennas, regardless of the material used, must first and foremost, provide a precision reflecting surface. There are two types of fiberglass reflectors, each using a completely different construction technique. At present, these types can be classified according to application, although in the future we may elect to use a single technique for all applications. Currently, antennas used for terrestrial communications, i.e., point-to-point microwave, are of a one-piece construction, that is, they are formed as a single unit on a mold the same size as the finished reflector. Satellite Earth Station Antennas, on the other hand, are of a segmented construction, the segments being high-pressure compression molded. Because ESA''s can be shipped in segments, they offer significant savings for the customer in freight costs and are particularly easy to handle on site, reducing overall installation costs. Cure of thermosetting resin is initiated by heat in the die and catalyst in the resin mix. The rate of reaction is controlled by heating and cooling zones in the die. The resulting high strength profile is cut to length, ready to use as it leaves the pultrusion machine. The controversy over metal versus fiberglass antennas continues, despite the over whelming evidence in favor of fiberglass. This article summarizes the contents of a number of other separate articles which have appeared in the industry media from time to time and is intended, from an objective point of view, to add credence to our claim that fiberglass is better. The ipso facto use of fiberglass, of course, does not guarantee a good antenna and there are a few antenna manufacturers who have "missed the boat" on techniques, which means there are poor quality fiberglass antennas, just as there are poor quality metal antennas, out there. Tencom is a manufacturer of fiberglass-reinforced composite rods. Through the use of the manufacturing process known as "Pultrusion", we are able to produce composite rod products in a variety of custom lengths and colors. Ourcompany is dedicated to providing its customers consistently high quality product at the very best prices and with no compromises in customer service. Our company can service almost any need in pultruded composite rod. If you use or are considering using composite rod, contact us for a competitive quote. Our company also offers several secondary operations, including the rods punching and drilling of fiberglass. Continuous fiber reinforcement in roving or mat/ roving forms are drawn through a resin bath to coat each fiber with a specially formulated resin mixture. The coated fibers are then drawn through a heated die. look no further for all your fiberglass rods and products
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