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Summary of Contents for DX Engineering DXE-OCF-KIT
- Page 1 DX Engineering 2023 1200 Southeast Ave. - Tallmadge, OH 44278 USA Phone: (800) 777-0703 ∙ Tech Support and International: (330) 572-3200 E-mail: DXEngineering@DXEngineering.com Page - 1 -...
- Page 2 “ARRL Antenna Book” (https://www.dxengineering.com/parts/arr-1113). The DX Engineering Multi-Band Off Center Fed Dipole is designed to be rugged yet lightweight. The kit includes two lengths premium 14 gauge relaxed PVC antenna wire with a ring terminal soldered on one end, ®...
- Page 3 This allows fast and easy field adjustments of antenna length for tuning. Hardware - Stainless steel. Power rating - Up to legal limit of 1.5 kW when using the included DX Engineering DXE-MC20-4-1 ® Maxi-Core 20 Balun.
- Page 4 The two antenna wire lengths that are included in the kit are 113 feet (34.44m) and 48 feet (14.63m) in length. These lengths are trimmed (as needed) for the version that you are building. Radiating Wire Lengths Total Overall Version Bands radiating antenna length Leg 1...
- Page 5 Fiberglass Pole Kits: You can search the DX Engineering website for “Fiberglass Pole Kits” or use this link: https://www.dxengineering.com/search?N=brand%3Adx-engineering%2Bpart-type%3Afiberglass-tubing_tubing- compression-clamp-kits_fiberglass-tubing- kits&SortBy=BestKeywordMatch&SortOrder=Ascending&keyword=FIBERGLASS%20POLE%20KITS Carbon Fiber Pole Kits: You can search the DX Engineering website for “Carbon Fiber Pole Kits” or use this link: https://www.dxengineering.com/search/brand/dx-engineering/part-type/telescoping-masts?fr=part- type&SortBy=BestKeywordMatch&SortOrder=Ascending&keyword=CARBON%20FIBER JTL-12555 Jet Lube SS-30 compound: You can search the DX Engineering website for “Jet-Lube SS-30”...
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Page 6: Safety Considerations
Safety Considerations WARNING! INSTALLATION OF ANY ANTENNA NEAR POWER LINES IS DANGEROUS Warning: Do not locate the antenna near overhead power lines or other electric light or power circuits, or where it can come into contact with such circuits. When installing the antenna, take extreme care not to come into contact with such circuits, because they may cause serious injury or death. - Page 7 #6 Stainless Steel Flat Washers 6-32 Nyloc Hex Nuts ® Using the included Stainless Steel Hardware, mount the included DX Engineering Maxi-Core 20 balun 4:1 Balun - part number DXE-MC20-C4-1 as shown below. Note: When installing stainless steel hardware, it is highly recommended that JTL-12555 Jet Lube SS-30 be used to prevent thread galling.
- Page 8 Cutting Antenna Wire Lengths The included antenna wire lengths that come with the DXE-OCF-KIT are: One roll of antenna wire that is 113 feet (34.44m) in length One roll of antenna wire that is 48 feet (14.63m) in length Depending on which version OCF dipole you decide to make you will cut the long (Leg 1) antenna wire and short (Leg 2) antenna wire accordingly.
- Page 9 Install OCF Dipole Wires to Balun Route both OCF dipole wires through the Balun Bracket as shown. Connect long wire (Leg 1) to the side of the Balun (Red + and Red in DX). Connect the short wire (Leg 2) to - side of the Balun (Black - and Black X in DX). The Balun that is included in this kit is a current Balun and both sides will have equal current.
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Page 10: Antenna Supports
Refer to the DX Engineering website to determine the ECLS Clamp size that fits the center pole that is used. There is a chart that will help you determine the size ECLS clamp you require. - Page 11 Weatherproof the Coax Connector The PL-259 connector should be properly weatherproofed after installing the coax cable to the Balun. Use of the DX Engineering Coaxial Connection Weatherproofing Kit DXE-WPCC88-1 is recommended (https://www.dxengineering.com/parts/dxe-wpcc88-1). If, at a later date, you decided to replace the coax cable, removal of the weatherproofing is easy and leave no mess on the PL-259 connector or Balun SO-239 connection.
- Page 12 Tuning the OCF Dipole Once completed, raise the antenna to the proposed operating height. Connect a good antenna analyzer to a coax cable coming from the Balun. Stay sufficiently separated from the antenna to avoid interaction and make the length of the coax cable as short as possible, consistent with this distance. Verify the resonant frequency of the antenna on each band specified for the version being installed as shown on the Table on Page 3.
- Page 13 OCF Antenna Analyzer Scans The following scans were measured using a AA-30 RigExpert Antenna Analyzer with the included Antscope software to generate the antenna scans of the OCF antenna versions. Version One Total Overall Bands Radiating Wire Lengths Version radiating antenna length Leg 1 Leg 2...
- Page 14 Version Three Total Overall Bands Radiating Wire Lengths Version radiating antenna length Leg 1 Leg 2 138 feet (42.06m) 110 feet (33.53m) 28 feet (8.53m) Version Four Total Overall Bands Radiating Wire Lengths Version radiating antenna length Leg 1 Leg 2 69 feet (21.03m) 57 feet (17.37m) 12 feet (3.66m)
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Page 15: Maintenance
Every effort is made to supply the latest manual revision with each product. Occasionally a manual will be updated between the time your DX Engineering product is shipped and when you receive it. Please check the DX Engineering web site (www.dxengineering.com) for the latest revision manual. -
Page 16: Technical Support
Warranty All products manufactured by DX Engineering are warranted to be free from defects in material and workmanship for a period of one (1) year from date of shipment. DX Engineering’s sole obligation under these warranties shall be to issue credit, repair or replace any item or part thereof which is proved to be other than as warranted;...
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