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Related Manuals for DX Engineering DXE-7580FS-VA-1
Summary of Contents for DX Engineering DXE-7580FS-VA-1
- Page 1 75/80 Meter Full Size Quarter-Wave Vertical Antenna DXE-7580FS-VA-1 DXE-7580FS-VA-1-INS Revision 1b © DX Engineering 2012 P.O. Box 1491 ∙ Akron, OH 44309-1491 USA Phone: (800) 777-0703 ∙ Tech Support and International: (330) 572-3200 Fax: (330) 572-3279 ∙ E-mail: DXEngineering@DXEngineering.com...
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Page 2: Table Of Contents
Table of Contents Introduction Features Supplied Items for Complete Installation Manual Updates Additional Material Needed, not Supplied Parts List for the DXE-7580FS-VA-1 Tools Required Warning Overhead Power Line Safety Installation Site Selection Radial System Mounting Pipe Assembly Radial Plate to Mounting Pipe... -
Page 3: Introduction
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 4: Additional Material Needed, Not Supplied
Guy Rope and Anchors – DXE-GUY400-KIT contains 4 screw-in earth anchors and four 100 foot rolls of Dacron/polyester rope to guy the DXE-7580FS-VA-1 at two levels in four directions. Additional guy rope is available from DX Engineering in several diameters and lengths. -
Page 5: Parts List For The Dxe-7580Fs
Parts List for the DXE-7580FS-VA-1 Description Description Tilt Base, 3/16" Laser Cut Stainless Steel DXE-ECL-020 Element Clamp DXE-SSVC-2P V-Clamp DXE-ECL-040 Element Clamp Tilt Base, Mast Mount Extren® Channel DXE-ECL-060 Element Clamp Tilt Base Mount Plate DXE-ECL-10SS Element Clamp 1/4-20 x 2" HH Bolt, full thread DXE-ECL-12SS Element Clamp 1/4"... -
Page 6: Warning
Using an optional patented DXE-RADP-3 Radial Plate greatly simplifies mounting radial wires in a vertical installation. The DXE-RADP-3 stainless steel Radial Plate contains enough stainless hardware sets to attach 20 radials. Additional 20 set radial connection hardware kits DXE-RADP- HW1K are available from DX Engineering. - 5 -... - Page 7 It comes with two nuts to secure the connector to our radial plate or other flat surface. Perfect for use with the DX Engineering Radial Plate it ensures the radial ground system, the antenna ground and the feedline shield are common. Don't forget to waterproof coaxial connections.
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Page 8: Mounting Pipe
Using enough staples will ensure the wires will not be snagged by mowers, people, or animals. Grass will quickly overgrow the radials and they will be virtually impossible to see or cause trouble. An article describing this process is available the DX Engineering website www.dxengineering.com in the Tech Info section. -
Page 9: Assembly
Assembly Your antenna is shipped in multiple boxes. The long box contains the vertical element sections, and an insulated U-channel. Some of the smaller tubes are inside larger ones. A smaller box contains the tilt base and all installation hardware. Carefully unbox the antenna and separate the various element tubes. -
Page 10: Attaching Ground Radial Wires To The Radial Plate
Figure 2. Additional hardware kits are available (DXE-RADP-1HWK) that contain 20 sets of Radial Plate Hardware. There are optional DX Engineering Radial Wire Kits available. DXE-RADW-500K/BD contains a 500 foot spool of 14 gauge copper stranded wire with black PVC insulation, 20 Terminal Lugs and 100 Steel or Biodegradable Lawn Staples. -
Page 11: Vertical Base Section
Vertical Base Section The base section is made up of an insulated mounting channel with hardware, a mounting plate, two U-Bolt assemblies and the base antenna section which is 2" OD and 36" long. Using Figure 4, attach the aluminum backing plate to the back of the Extren® insulated channel. The base hardware kit contains four 2"... -
Page 12: Base Section To Tilt Base
Base Section to Tilt Base Place the Lower Base Section into the holes of the Tilt Base and loosely install the Tilt Base mounting hardware shown in Figure 6. Figure - 6 Using a wrench or nut driver, securely tighten the two Nyloc Nuts at the bottom of the Tilt Base. Then loosen them one-half turn each. - Page 13 It is important to note that the lower, outside bolt becomes the pivot point while raising or lowering the antenna. This pivot bolt MUST be retained in the pivot point. It seems natural to push the antenna toward the Tilt Base while raising. Push up while raising, but not toward the base since this could cause the pivot bolt to lift out of the slot and allow the mechanism to bind up and bend the lower bolts.
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Page 14: Assembling The Vertical Element Sections
Deburring is a finishing method used in manufacturing. Our aluminum tubing is machine cut on both ends and machine slit on one end. Although DX Engineering manufactured aluminum tubing is deburred, you should further assure that there are no ragged edges or protrusions. - Page 15 Assemble the vertical element sections in an area that is flat and has sufficient room for the length of the antenna (68 feet) during assembly. Lay the tubing out in descending OD sizes. Orient the slits in the tubes toward the top of the antenna. Mark each section for the overlap as shown in Figure 8.
- Page 16 Make sure the body of the element clamp is positioned between the slits and tighten securely. Repeat the procedure with remaining elements. Refer to Figure 10 for clamp sizes and placement. Continue mating the smaller elements inside the larger ones. Double-check the vertical element sections you have just assembled.
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Page 17: Mating The Vertical Elements To The Tilt Base
Mating the Vertical Element Sections to the Tilt Base CAUTION: Attempting final assembly without proper precaution can be dangerous. You should have someone help you steady the vertical antenna sections during mating with the base section. Note: A pair of sawhorses or ladders should be used to support the vertical sections during assembly with the tilt-base and whenever the vertical is tilted down. - Page 18 Make sure the guy ropes are in the clear before you begin. It maybe helpful to tape over the element clamps to keep the ropes from getting hung on them as you raise the antenna. Starting from the top of the antenna, walk it up slowly using an overhead hand-over-hand motion, maintaining a slow and steady pace.
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Page 19: Feedline Connection
Feedline Connection Figure 12 - Feedline Connection using the optional Bulkhead Connector Install the Studded Band Clamp on the lower Base Section as shown in Figure 12. The Studded Band Clamp is the feedpoint connection for the vertical elements. Use a small amount of Penetrox between the clamp and the lower base section to insure a good electrical connection. -
Page 20: Alternate Feedline Connection
The DXE-7580FS-VA-1 should resonate at approximately 3.6 MHz with the recommended ground radial system installed and the vertical dimensions as shown in Figure 10. Resonance is adjusted by the length of the vertical element sections. -
Page 21: Optional Items
DXE-RADP-1HWK - Radial Plate Wire Attachment Hardware Kit - Stainless Steel Additional 20 Sets of ALL Stainless Steel Radial Hardware for use with the DX Engineering Stainless Steel Radial Plate. (20) 1/4'' Bolts - (20) 1/4'' Nuts - (20) 1/4'' Flat Washers (20) 1/4'' Split Washers - (20) 1/4'' Star Washers DXE-363-SST - Bulkhead Fitting, SO-239 Socket, Silver Plating, Teflon®... - Page 22 Optional Accessory Items UMI-81343, DXE-NSBT8 - Anti-Seize & Never-Seez® An Anti-seize compound MUST be used on any Stainless Steel nuts, bolts, clamps or other hardware to prevent galling and thread seizure. Any of these products can be used for this purpose. *UMI-81343 Anti-Seize, 1 oz.
- Page 23 SUM-900031 - Automatic Wire Stripper/Crimper/Cutter, 24-10 Ga. Our DX Engineering wire stripper uses a spring-loaded design to make quick work of wires ranging from 24 to 10 gauge. Just insert the wire, squeeze the handle, and listen for the click. That’s the sound of another perfect wire stripping job performed in about 2 seconds- a fraction of the time it takes your pocket knife to do the same job.
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Page 24: Technical Support And Warranty
A four point guying system is recommended for use with a DX Engineering Tilt Base, because just one of the guy ropes has to be loosened when you tilt the vertical down.
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