DX Engineering DXE-7580FS-VA-3 Page 1 Manual Download

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75/80 Meter
Full Size
Quarter-Wave
Vertical Antenna

DXE-7580FS-VA-3

US Patent No. 8,130,168

DXE-7580FS-VA-3-INS Revision 5d

© DX Engineering 2021
1200 Southeast Ave. - Tallmadge, OH 44278 USA
Phone: (800) 777-0703 ∙ Tech Support and International: (330) 572-3200
Fax: (330) 572-3279 ∙ E-mail: [email protected]

Summary of Contents for DXE-7580FS-VA-3

Page 1: ... DXE 7580FS VA 3 US Patent No 8 130 168 DXE 7580FS VA 3 INS Revision 5d DX Engineering 2021 1200 Southeast Ave Tallmadge OH 44278 USA Phone 800 777 0703 Tech Support and International 330 572 3200 Fax 330 572 3279 E mail DXEngineering DXEngineering com ...

Page 2: ...y 10 Mounting and using the Optional DXE VRW 1 Manual Winch 18 General Information about Aluminum Tubing 21 Assembling the Vertical Sections 22 Lowering or Raising the Vertical Element Assembly 30 Feedline Connection 31 Optional DXE VMN 1 Vertical Antenna Matching Network 31 Tuning the Vertical 32 Locking the Pivot Base 33 DXE 7580FS VA 3 Part Lists 34 Pivot Base Assembly 34 Optional DXE VRW 1 Man...

Page 3: ... power transfer The DX Engineering DXE 7580FS VA 3 is specifically designed to operate on 75 80 meters Included with this antenna system is a rugged heavy duty stainless steel pivot fixture for ease of assembly and adjustments Engineered with 6063 corrosion resistant aluminum tubing thick stainless steel mounting brackets and stainless steel hardware this antenna is very durable and attractive Fea...

Page 4: ...er 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 Overhead Power Line Safety Before you begin working check carefully for overhead power lines in the area you will be working Don t assume that wires are teleph...

Page 5: ...hat must go together in a certain sequence to make assembly easier Installation Sequence 1 Site Selection 2 Mounting Pipe 3 Coaxial Cable to Mounting Pipe 4 Radial System 5 Pivot Base Assembly US Patent No 8 130 168 6 Mounting Pivot Base to Mounting Pipe 7 Antenna Assembly 8 Mating Antenna Elements to Pivot Base Assembly 9 Tuning Site Selection Select a mounting location clear from power lines str...

Page 6: ...date at least 4 feet of pipe and 4 to 6 inches of gravel at the bottom for drainage Set the mounting pipe on the gravel use the concrete to fill around the pipe per the concrete instructions Fill the hole until the concrete is level with the ground around it Use a level on the mounting pipe as you fill the hole to be sure the mounting pipe is vertically straight Your location landscape and ground ...

Page 7: ...PL Radial Wire Anchor Pins to hold them down Using enough staples will ensure the wires will not be snagged by mowers people or animals Grass will quickly overgrow the radials and it will be virtually impossible to see them An article describing this process is available on the DX Engineering website in the Tech Info section Radials can also be buried just under the surface by using a power edger ...

Page 8: ... to allow access to the radial wire mounting hardware see Figure 1 Connections to the antenna will be made via the optional DXE 112 KIT chassis mount SO 239 connector The DXE RADP 3 Radial Plate comes with 20 sets of stainless steel hardware for mounting the radial wires It is suggested that 32 radial each 65 feet long be used therefore additional DXE RADP 1HWK Radial Plate Wire Attachment Hardwar...

Page 9: ...anded wire with black PVC insulation 20 Terminal Lugs and 100 Steel or Biodegradable Lawn Staples The DXE RADW 1000K BD Radial Wire Kit contains a 1 000 foot spool of 14 gauge copper stranded wire with black PVC insulation 40 Terminal Lugs and 200 Steel or Biodegradable Lawn Staples RADW 20RT 32RT or 65RT contain 20 each radial wires with 1 4 terminal attached These kits come in 20 Ft 32 Ft or 65 ...

Page 10: ... 9 Figure 3 Overall Super Duty Pivot Base US Patent No 8 130 168 Assembly Reference Drawing ...

Page 11: ...four 3 8 hex nuts Assemble the bottom hinge to the bottom of the heavy duty Extren insulated channel as shown below Tighten the hardware 3 Locate the three 4 Cast Saddle Clamps three 4 x 3 8 x 6 813 long stainless steel U Bolts six Saddle Backing Plates six 3 8 washers six 3 8 split lock washers and six 3 8 16 stainless steel hex nuts Note The U Bolts and their hardware may be packaged separately ...

Page 12: ...heavy duty Extren insulated channel as shown below Tighten the hardware 5 Locate the stainless steel base side bottom hinge two 1 2 13 x 1 3 4 long stainless steel hex head bolts two pivot bushings four 1 2 x 1 4 stainless steel flat washers two 1 2 stainless steel split lock washers and two 1 2 13 stainless steel hex nuts Assemble the base side hinge plate to the bottom hinge plate as shown below...

Page 13: ...d the end of the hex nuts the two U Bolts to the stainless steel base side bottom hinge as shown below The U Bolts will be tightened in a later assembly step 7 Locate the stainless steel Pivot Base Winch Mount two stainless steel Pivot Base Plate Brackets four 3 8 16 x 1 3 8 long stainless steel hex bolts eight stainless steel 3 8 flat washers four stainless steel 3 8 split lock washers and four s...

Page 14: ...wo U Bolts to the Pivot Base Winch Mount as shown below The U Bolts will be tightened in a later assembly step 9 Locate four 3 8 16 x 1 3 8 long stainless steel hex bolts eight stainless steel 3 8 flat washers four stainless steel 3 8 split lock washers and four stainless steel 3 8 16 hex nuts Mount the Pivot Base Winch Mount assembly to the stainless steel Pivot Base Locking Plate Snug the bolts ...

Page 15: ... the winch mounting plate Position the base fixture in the position you pre selected for the pivoting direction Ensure the assembly is perfectly vertical no twist from top to bottom Straighten out the U Bolts perpendicular to the mounting pipe and tighten the U Bolt clamp hardware evenly so the length of the exposed threads is approximately equal Any clamp should be tightened evenly from side to s...

Page 16: ...viously installed U Bolts Step 9 Insert the 4 OD x 72 bottom element section into the antenna base section through the three U Bolts with the feed point at the bottom facing front as shown below The bottom of the 4 OD element tube should be even with the bottom of the insulated channel as shown below Tighten the U Bolt hardware evenly so the length of the exposed threads is approximately equal Any...

Page 17: ...hex nuts the two U Bolts and associated hardware to the antenna hook mounting plate as shown below The U Bolts will be tightened in the next assembly step 13 Loosen the U Bolts enough to slide the Antenna Hook Mount assembly over the 4 OD antenna lower element on the base assembly Position the antenna hook mount approximately 1 2 above the insulated channel as shown below 14 Tighten the two U Bolt...

Page 18: ...nless steel external tooth lock washers two 1 4 stainless steel flat washers and two stainless steel 1 4 20 hex nuts Install the feedpoint hardware at the bottom of the 4 OD bottom element in the pre drilled hole as shown below Views showing the Feedpoint hardware installed ...

Page 19: ... Kit is the stainless steel hardware for mounting the winch on the pivot base assembly The hardware includes three 3 8 16 x 1 3 8 long stainless steel hex bolts six stainless steel 3 8 16 flat washers and three 3 8 16 Stainless Steel Nyloc Nuts Loosely install the three sets of stainless steel hardware on the manual winch as shown below The hardware does not have to be removed from the manual winc...

Page 20: ...en the hardware to hold the winch in place Connect the Hook from the manual winch strap to the Antenna Hook Mount as shown below To remove the winch simply reverse this sequence The winch should be removed and stored when not in use Do not leave the winch outdoors since extended weathering and sunlight may damage or weaken the strap and or other parts Refer to the manual that is included with the ...

Page 21: ... crank on the manual winch to lower or raise the antenna After raising the antenna completely make sure you replace the four bolts that were removed in step 3 The manual winch should be removed when not in use to protect the gears and web strap from weather and environmental effects Note Sawhorses chairs or ladders should be used to support the vertical sections during assembly with the pivot base...

Page 22: ...known as deburring Deburring is a finishing method used in manufacturing DX Engineering aluminum tubing is machine cut on both ends and machine slit on one end and you should further assure that there are no ragged edges or protrusions Use the DXE 22166 Slim Grip Deburring Tool or the DXE 22600 Deburring Tool with Extending Handle and Extra Blades for this operation 2 Clean the inside of the alumi...

Page 23: ...less Steel Hex Head Cap Screw 1 3 00 OD x 72 long 120 wall 8 drilled holes 8 5 16 Stainless Steel Flat Washer 1 2 75 OD x 48 long 120 wall 4 drilled holes 4 5 16 18 Stainless Steel Nyloc Hex Nut 1 2 75 OD x 48 long 120 wall 8 drilled holes 2 1 4 20 x 3 1 2 Stainless Steel Hex Head Cap Screw 1 2 5 OD x 72 long 120 wall 8 drilled holes 2 1 4 20 x 3 1 4 Stainless Steel Hex Head Cap Screw 1 2 25 OD x ...

Page 24: ...irst two sections of tubing have a 0 25 wall thickness and required machining to allow the tubes to fit together This machining process also provided a positive matching of the parts which allowed accurate drilling during production If the tubes are turned around they will not fit together properly ...

Page 25: ... 24 ...

Page 26: ... Figure A 1 below is an overall layout of all the vertical elements with hardware shown for reference The 4 OD element which is already mounted on the base pivot assembly is shown for reference Figure A 1 ...

Page 27: ... them enough to hold but not tight enough to deform the aluminum elements Figure A 2 Note you will install the 2 75 x 48 x 0 120 wall tube INSIDE the 3 OD section aligning the mounting bolt holes then insert these into the 3 5 OD base element Make sure you insert the 2 75 OD tube into the correct end of the 3 OD section the holes at each end are drilled differently Align the holes and use two stai...

Page 28: ...stainless steel Nyloc nuts example shown in Figure A 4 When tightening the bolts and Nyloc nuts tighten them enough to hold but not tight enough to deform the aluminum elements Assemble the 2 25 OD element to the 2 5 OD element using the 1 4 20 x 3 long bolts four 1 4 stainless steel flat washers and two 1 4 18 stainless steel Nyloc nuts example shown in Figure A 4 When tightening the bolts and Ny...

Page 29: ... 28 Using a tape measure and felt tip pen all of the slit tubing elements need to be marked as follows for overlap as shown in Figure A 5 Figure A 5 ...

Page 30: ...nd clamp is located right next to the larger element See Figure A 7 Figure A 7 To avoid damage to the element clamps do not over tighten them The slits on the top 0 50 OD section are not needed unless you are adding a section to lower the frequency i e MARS band so the slit end is inserted into the 0 625 OD section Place the black vinyl cap on top of the 0 50 OD section When the antenna elements a...

Page 31: ...the manual Mounting and using the Optional DXE VRW 1 Manual Winch for detailed information DANGER When raising or lowering the vertical antenna make sure you have not inadvertently located the antenna underneath power lines Residential power lines are often less than 40 high Contact With Any Power or Utility Lines Can Be Lethal In areas where there is a high atmospheric static condition areas pron...

Page 32: ...enna Matching Network The DXE VMN 1 Vertical Antenna Matching Network is custom designed for use with base fed quarter wave resonant vertical antenna systems In some vertical antenna installations with excellent radial systems achieving the best SWR on a resonant vertical for 80 meters may be difficult without some means of adjusting feedpoint impedance The DXE VMN 1 allows easy adjustment for low...

Page 33: ...d ground radial system installed and the vertical dimensions described in this manual Resonance is adjusted by the length of the vertical element sections To raise the frequency slide the top 1 2 OD element into the 5 8 OD element If you are having trouble achieving resonance make sure the element section lengths are correct Make sure you have at least 16 radials 32 are better 65 feet long symmetr...

Page 34: ... pivot locking bolts are in place and properly secured Additionally you may replace one of the bolts with a padlock to further prevent tampering or accidental pivoting as shown below Ensure all four Pivot Locking Bolts are in place Padlock used in place of one Pivot Locking Bolt ...

Page 35: ... Stainless Steel U Bolt 8 3 8 16 x 1 3 4 Long Stainless Steel Square Neck Carriage Bolt 2 1 2 13 x 1 3 4 Long Stainless Steel Hex Head Cap Screw 4 1 2 x 1 1 4 Stainless Steel Washer 2 1 2 Stainless Steel Lock Washer 2 1 2 13 Stainless Steel Nut Note The U Bolts and their hardware may be packaged separately Optional DXE VRW 1 Manual Winch Assembly QTY Description 1 1500 Pound Exposed Gear Hand Winc...

Page 36: ...s on one end 2 5 16 18 x 5 Stainless Steel Hex Head Cap Screw 2 5 16 18 x 4 1 4 Stainless Steel Hex Head Cap Screw 8 5 16 Stainless Steel Flat Washer 4 5 16 18 Stainless Steel Nyloc Hex Nut 2 1 4 20 x 3 1 2 Stainless Steel Hex Head Cap Screw 2 1 4 20 x 3 1 4 Stainless Steel Hex Head Cap Screw 2 1 4 20 x 3 Stainless Steel Hex Head Cap Screw 2 1 4 20 x 2 3 4 Stainless Steel Hex Head Cap Screw 16 1 4...

Page 37: ...t Washer 14 34 3 8 Split Lock Washer 15 34 3 8 16 Nut 16 8 3 8 16 x 1 375 Long Hex Head Cap Screw 17 4 3 Cast Saddle 18 4 3 x 3 8 x 5 25 Stainless Steel U Bolt 19 8 3 8 16 x 1 3 4 Long Stainless Steel Square Neck Carriage Bolt 20 2 1 2 13 x 1 3 4 Long Stainless Steel Hex Head Cap Screw 21 4 1 2 x 1 1 4 Stainless Steel Washer 22 2 1 2 Stainless Steel Lock Washer 23 2 1 2 13 Stainless Steel Nut 24 1...

Page 38: ... damaging metal to metal contact Jet Lube SS 30 is also designed to work as a similar and dissimilar component between two metal surfaces to prevent seizing and galvanic action The SS 30 compound formula improves conductivity and ground continuity and will not melt in high temperatures Jet Lube SS 30 Pure Copper Anti Seize Features include Meets MIL PRF 907E spec K factor 0 13 Service rating 65 de...

Page 39: ...d Female SecureMount Bulkhead Connector 3M Temflex 2155 Rubber Splicing Tape Conformable self fusing rubber electrical insulating tape It is designed for low voltage electrical insulating and moisture sealing applications For outdoor use it should be protected from UV deterioration with an overwrap of Scotch Super 33 Scotch Super 33 Highly conformable super stretchy tape for all weather applicatio...

Page 40: ...tallation damaged from severe weather including floods or abnormal environmental conditions such as prolonged exposure to corrosives or power surges or by the performance of repairs or alterations outside of our plant and shall not apply to any goods or parts thereof furnished by Buyer or acquired from others at Buyer s specifications In addition DX Engineering s warranties do not extend to other ...

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