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DX Engineering Heavy-Duty 4130 Chromoly Steel Masts
DX Engineering offers Heavy Duty 4130 Chromoly Steel Masts in both 11 foot and 22 foot lengths. DX Engineering Heavy-Duty 4130 Chromoly Steel Masts offer ham radio operators an opportunity to stack large antennas. These 2-inch and 3-inch outside diameter galvanized masts feature a 0.250-inch wall thickness and meet ASTM A-513 Type 5 ratings. These high-strength carbon steel masts are cold-drawn and electric-welded with a specified yield stress rating of over 100,000 psi! Tensile strength minimum is above 110,000 psi. Minimum Rockwell B hardness is 96. They are temperature stress-relieved to ensure consistent mechanical strength. Compared to standard galvanized plumbing pipe, the Heavy‑Duty 4130 chromoly steel mast offers substantially greater strength and durability. The galvanizing on these masts meets ASTM A123/A123M specifications. As with all hot dip galvanized products, surface irregularities are normal. Any cut ends are protected with a cold galvanizing coating. Important: Because these masts are galvanized, their overall outside diameter will be larger than the nominal size. The 2 inch mast may measure up to 2.070 in. OD, and the 3 inch mast may measure up to 3.130 in. OD. Are you planning on stacking a few mono-banders on the tower? Are you going to have multiple Yagis stacked high and deep on an H frame? Are you raising a BIG log-periodic? If you are going to loft big antennas with a lot of wind area, then you absolutely need a DXE Heavy-Duty 4130 Steel Mast atop your heavy-duty tower! DX Engineering Heavy-Duty 4130 Chromoly Steel Masts may be ordered and picked-up at the Summit Racing Equipment Retail Store, 1200 Southeast Ave, Tallmadge, OH 44278. Because of their length, these masts require truck freight shipping. Our system automatically calculates our low cost truck freight rates to any location within the continental United States. With no obligation to purchase, simply click ADD TO CART, enter your ZIP Code, and click CALCULATE to view your shipping cost. Due to size restrictions, air freight is not available. For information regarding a surface freight shipment of these masts to locations outside of the continental US, send an e-mail inquiry to dxengineering@dxenginering.com.
( 12 )
$405.99
DX Engineering Telescoping Aluminum Antenna Tubing Kits
DX Engineering ATK65A Telescoping Aluminum Antenna Tubing Kits employ twelve aluminum tubes that may be used as rope-guyed vertical radiators. Intended for portable or temporary operations, these kits may also be used in a well-guyed permanent vertical antenna installation. They're a good DIY vertical antenna element for Field Day, DXpeditions, RVs, SOTA, camping, and more. Guying is required (three or four levels of rope guys are needed when these kits are extended beyond a 30 ft. height), so guy rings are included. ATK65A kits consist of 11- 6-ft. sections and one 3-ft. section of DX Engineering's rugged 6063-T832 drawn aluminum tubing. The kit also includes all required stainless steel element clamps. The bottom section is the 2.0-in. outside-diameter heavy-wall (0.120 in. thick) that mates up to 2-1/8 in. diameter tubing with an 8 in. overlap, and then back to 2-in. diameter tubing with a 5 in. overlap. Each sections continues the element taper down to 7/8-in. diameter at the top. The overall length of the assembled sections can reach up to 780 inches, or 65 feet. These kits are well suited as vertical radiators for your custom-designed single vertical antenna or in multiples in a two or four element array. They may be set to resonate on any HF band at any length up to 65 feet by simply removing or telescoping the sections and clamping them at the desired length. NOTE: This vertical antenna tubing kit is NOT intended to be used as a support for other antennas. Also keep in mind that vertical elements typically require counterpoise or radial wires emanating from the feedpoint for proper function. Erection of this thin-wall aluminum tubing element is a multi-helper, simultaneous push-up and pull-on guy lines process. See the instructions for details. For additional product information, please look at the files under the "Documentation" tab. Whether you use them as a stack of aluminum for your experimentation or as quarter-wave resonant vertical element, DX Engineering ATK65A Telescoping Aluminum Antenna Tubing Kits provide the most economical path to building your own designs!
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$499.99