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Introduction 

 
The DX Engineering 

DXE-7580FS-VA-1

 is a high performance 68 foot full size quarter-wave  

75/80 meter vertical antenna that is tunable to operate over segments of the entire band with an 
SWR of 1.5:1 or less. Designed with 6063 corrosion-resistant aluminum tubing and stainless steel 
hardware, this antenna is very durable and attractive.  
 
A breakthrough in a FULL SIZE quarter-wave high-performance antenna that doesn't cost an arm 
and a leg. Plus, if your neighbors are the slightest bit touchy, this is the antenna for you. Slim lines 
can hide in even a small stand of tall trees. Some have painted the antenna a color to match the bark 
of the surrounding trees.  
 
Guying is usually at 2 levels. Bandwidth is outstanding, a 456 to 528 kHz 2:1 bandwidth depending 
on your radial field.  Your internal tuner can get SWR down to 1:1 on any DXing frequency for 
maximum power transfer. 
 
Of course, another key to performance is a good ground radial system. 32 radials, 65 feet long are 
recommended. Fewer radials will work, but with diminished results. 
 
 

Features 

 

 

Ultra-WIDE SWR Bandwidth and Unbeaten Gain

 

 

Highest Wind Ratings - High Strength 6063/6061 Tubing Manufactured to DX Engineering 
Specifications

 

 

Easy Tilt Up and Down - Specially Manufactured Patented Stainless Steel Tilt Base

 

 

High Power Handling Capacity - High Strength, UV Protected Extren

®

 Insulator 

 

No Rust - 100% Stainless Steel Tubing Clamps and Hardware  

 

Reliability Second to None - Specially Manufactured Stainless and Aluminum Saddle 
Clamps, Stainless Bolts and Precision Machining on each antenna 

 

Full legal limit power rating 

 
 

Supplied Installation Item: 
 

 

  Tilt Base 

- Patented, Precision cut from 3/16 in. 304 Stainless Steel, this mounting plate is 

virtually indestructible. Mounts to the same mast that you use for the radial plate.  Allows 
for easy installation, tuning or severe weather lay-down. 

 
 

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. 
 

Summary of Contents for DXE-7580FS-VA-1

Page 1: ...tical 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...

Page 2: ...tem 5 Mounting Pipe 7 Assembly 8 Radial Plate to Mounting Pipe 8 Attaching Ground Radial Wires to the Radial Plate 9 Tilt Base to Mounting Pipe 9 Vertical Base Section 10 Base Section to Tilt Base 11...

Page 3: ...long are recommended Fewer radials will work but with diminished results Features Ultra WIDE SWR Bandwidth and Unbeaten Gain Highest Wind Ratings High Strength 6063 6061 Tubing Manufactured to DX Engi...

Page 4: ...many radials as possible These bulk radial wire kits use 14 gage stranded copper wire with a relaxed black PVC insulation that is UV resistant hard to see and lays down easily unlike the wire that is...

Page 5: ...for 3 8 U Bolt 2 10 Star Washer 2 3 8 16 Hex Nut 4 10 Flat Washer 2 3 8 Split Washer 4 10 Hex nut 2 3 8 Flat Washer 4 10 Split Lock Washer 2 Antenna Elements OD OD Wall Thickness Length Qty 2 2 000 0...

Page 6: ...ls keep them at least 10 feet away from all overhead lines including any lines from the power pole to your home Installation Site Selection Select a mounting location clear from power lines and struct...

Page 7: ...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 The optio...

Page 8: ...eel mounting pipe at least 4 feet long This will allow approximately 2 feet or more to be below ground and approximately 2 feet above ground A thick walled steel pipe 1 3 4 OD to 2 OD maximum is recom...

Page 9: ...nna pieces It ensures high conductivity at all voltage levels by displacing moisture and preventing corrosion or oxidation UMI 81343 Never Seez or DXE SBT8 Anti Seize should be used on all clamps bolt...

Page 10: ...tached These kits come in 20 Ft 32 Ft or 65Ft lengths Depending on the number of radial wires used space them out evenly around the Radial Plate The Radial Plate will accommodate up to 60 radial wires...

Page 11: ...h of the middle four holes through the backing plate Put on the aluminum spacer a split washer and a plain hex nut Tighten firmly but not enough to crush the insulated channel Figure 4 Install the low...

Page 12: ...ary to tighten these nuts more securely unless further tilt operation is no longer required They should not be loosened more than one half turn at any time Test the tilt function to ensure proper clea...

Page 13: ...e Tilt Base is not made to support the whole antenna by itself when tilted When the antenna is tilted over ensure you have some sort of table stand or saw horse to set the antenna on to aid in support...

Page 14: ...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 Use the DXE 22166 Slim Grip Deburring...

Page 15: ...clamps Refer to Figure 10 for clamp sizes and placement Slide all the clamps over each section before putting them together You can lightly tighten the clamps in each section to hold them until needed...

Page 16: ...efer 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 Total overall length befo...

Page 17: ...enna rope are available as model DXE GUY400 KIT to allow guying of the antenna at two levels in four directions Rule of thumb engineering suggests the distance of the anchors from the antenna base sho...

Page 18: ...a during the first stages of raising it The antenna mounting channel must be kept in alignment with the Tilt Base plate to prevent binding until it is positioned in the Tilt Base Once the antenna is v...

Page 19: ...tion on the antenna base to the optional DXE 363 SST Bulkhead Fitting which is installed in the optional DXE RADP 3 Radial Plate To minimize stress on the feedline connection make sure the feed point...

Page 20: ...e vertical is resonant at the desired frequency 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...

Page 21: ...attach tubing to thick plates and is made with anti corrosive properties The special Stainless Steel saddle has serrated teeth will clamp to the pipe securely by biting into the surface For this reaso...

Page 22: ...build the perfect radial system 500 1000 ft spool of 14 AWG stranded copper wire with vinyl insulation 20 40 lugs 100 200 radial wire anchor pins Eliminating the need to bury your radials Build up to...

Page 23: ...DXE STPL 100BD Radial Wire Staple Biodegradable 3 100 pack DX Engineering DXE STPL 100BD is a 100 pack of 3 biodegradable anchors that are produced from recycled PLA Polylactide Resin Depending on th...

Page 24: ...f which is proved to be other than as warranted no allowance shall be made for any labor charges of Buyer for replacement of parts adjustment or repairs or any other work unless such charges are autho...

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