Hello All, During the spring and summer, serious experimentation into large PVC-framed tuned passive loops (of up to 9 feet per side) was undertaken here, which included the actual building of ten different loops-- with sizes ranging from 18" to 9' per side Finding PVC to be an ideal, lightweight frame material which offered great structural strength (if the proper PVC diameter was used), I was fascinated with the cost-to-performance ratio of these inexpensive loops-- even to the point of writing a full construction article suitable for building any one of the ten sizes (they all use a standard frame design). This major PVC Loop article has just been uploaded to the "ULR Antenna" section of the ULR File area on _http://www.dxer.ca_ (http://www.dxer.ca) , and to the Antenna section of the Library File of the Ultralightdx Yahoo site. Prepared with major assistance from John Bryant and Steve Ratzlaff, the article includes full pipe size, wire length, coil turn, weight, cost, and frequency coverage information for nine different Medium-Wave loops-- of 18.5", 25.5", 40", 48", 63", 66", 75", 91" and 109" per side, as well as a Longwave model of 77" per side. All of the Medium-Wave loops can be built for under $55 in total cost, and none of them weighs more than 16 pounds-- even the monster 9' sided model. It is hoped that this fascinating experimentation will give a boost in DXing fun to users of both Ultralight and table receivers, and open up an exciting new world of weak-signal DXing to hobbyists in both groups. 73, Gary DeBock (in Puyallup, WA) _______________________________________________ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca
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