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Summary of Contents for DX Engineering DXE-SMBA-2
- Page 1 Auto Tuned Multi-Band HF Stealth Antenna System DXE-SMBA-2 Patent Pending DXE-SMBA-2-INS Revision 1 © DX Engineering 2010 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...
- Page 2 Typically, with even a short 26 foot wire antenna, you can be on the air on all bands 40M and up – And with the included DX Engineering 46 foot wire antenna element you can be on all bands 80M -...
- Page 3 Part List for the DXE-SMBA-2 Parts List Quantity Description DX Engineering custom Laser Cut Stainless Steel Mounting Shelf with integral Radial Wire connection points (patent pending) Laser Cut Stainless Steel Legs MFJ-927 IntelliTuner™ with external Bias "T" and mounting hardware...
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Page 4: Site Selection
Included with the DXE-SMBA-2 is one 500 foot roll of radial wire, a 14 gauge stranded copper with a black relaxed PVC insulation wire. At a minimum, 20 radials, each 25 feet long, should be used with this antenna. - Page 5 Installing Ground Spikes and Antenna Insulator Using the included stainless steel hardware, mount four ground spikes as shown below. DXE-81343 Anti-Seize should be used on all stainless steel hardware to prevent galling. Bottom View Mount serpentine insulator to the shelf using one hex bolt, star washer, flat washer and Nyloc hex nut.
- Page 6 Attaching Ground Radial Wires to the SMBA-2 Shelf Prepare the twenty 25 foot radial wires by stripping off insulation at one end and crimping a #10 Terminal Lug. As an option, the terminal lugs may also be soldered to help ensure positive electrical connection and long life.
- Page 7 Wire Element Installation and MatchBoxx Connections The Wire Element included is 45 feet long. This will allow you to tune from 80 meters through 10 meters. If your installation will not allow a 45 foot length, the wire may be cut to 26 feet which will allow you to tune on 40 through 10 meters.
- Page 8 Antenna Element Wire Attaching Rope to the End Insulators DX Engineering Double-braided Polyester Rope STI-DBR should be secured to the end insulators (depending on your installation) using a non-slip knot. One suggestion for attaching the rope is shown below. The ends of the rope should be cauterized with a small flame to prevent the rope braid from fraying.
- Page 9 Some options in putting up the antenna element are: Connect the antenna element from the SMBA-2 to a roof eve, then to a tree. Connect the antenna element from the SMBA-2 to a tree. Connect the antenna element from the SMBA-2 to a tree, then to another tree. Serpentine Insulators - 8 -...
- Page 10 Using the Auto-Tuner When using the tuner, refer to the MFJ-927 manual for details. If you try tuning and it seems that the tuner will not tune up as it should, try 'band switching'. Band switching for this means going up or down one band, re-tune, and then go back to the desired band and re-tune again.
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Page 11: Manual Updates
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 12: Technical Support
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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