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Guying a Vertical Antenna System 

 
Guying of vertical antennas is always recommended for stability. However, if your area encounters 
severe wind velocities or icing conditions, simple guying will reduce the possibility of failure. 
Using the 

DXE-GUY

 kits, you can install four guy ropes starting approximately 1/2 the way up the 

vertical antenna system to ground level. Guying should be tightened just enough to permit the 
antenna to swing a few inches. The ends of the ropes are tied to the earth anchors that are screwed 
into the ground at about the same angle as the ropes will be.  When using the Tilt Base, position the 
guy wires as shown below.  This will make it easy to raise or lower the antenna and only one guy 
line needs to be loosened. The other guy lines will help guide the antenna on the way up. Depending 
on your antenna system, additional guys at points higher on the antenna may be required. 
 
 
 
 
 

       
 
       Typical No Slip 
Knot for 

DXE-SYN-DBR

 

Double-Braided Dacron  

 

 

 

 

 

  

           

DXE-GUY-200

 

       Polyester Rope 

 

Side View 

 
 

The earth anchors 

are approximately 

25 feet from the 

antenna 

Note:

 Depending on wind and  

          ice conditions, additional  
          guying may be necessary. 
 
 
 
 

Top View 

 
 
 
 
 
 
 
 

 

Содержание THUNDERBOLT DXE-MBVA-1UP

Страница 1: ...er Vertical Antenna DXE MBVA 1UP DXE MBVA 1UP INS Revision 3 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...

Страница 2: ...Pipe 8 Attaching Ground Radial Wires to the Radial Plate 9 Tilt Base to Mounting Pipe 10 Vertical Base Section 11 Base Section to Tilt Base 13 Assembling the Vertical Sections 14 Mating the Vertical...

Страница 3: ...stomer supplied wide band tuner required Power Handling up to 5 kW Only 43 ft overall height Supplied Installation Items Tilt Base Precision laser cut from 3 16 in 304 Stainless Steel this patented ti...

Страница 4: ...Band Vertical Antenna series Parts List for the DXE UN BRKT Qty Description 1 Patented Mounting Bracket for the DXE UN 43 4 6 x 3 4 long Stainless Steel Hex Head Bolts 8 6 Flat Washer 4 6 Nyloc Nut 2...

Страница 5: ...2 ID x 3 25 leg w Saddle Hardware 2 DXE ECL 28SS Element Clamp 2 Black Vinyl Cap 1 Feedline Connection Qty 1 4 20 x 1 HH Bolt full thread 1 1 4 External Tooth Washer 2 1 4 Flat Washer 2 1 4 20 Hex nu...

Страница 6: ...system is recommended for use with the DX Engineering Tilt Base because just one of the guy ropes has to be loosened when you tilt the vertical down The remaining guys help stabilize the vertical in t...

Страница 7: ...this antenna Using 32 radials at 65 feet long is preferred and highly recommended The extra radials help overcome unknown poor soil conditions improve bandwidth and ensure the best performance possib...

Страница 8: ...night Your location landscape and ground conditions may require different mounting solutions in order to have the steel mounting pipe and the vertical antenna in a secure position Note Galvanized stee...

Страница 9: ...its 1 9 OD is just fine for this application and can usually be found at your local home building supply store Mount the Radial Plate so you have approximately 1 of space between the bottom of the pla...

Страница 10: ...nded 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...

Страница 11: ...e of the DXE RADP 3 Radial Plate as shown in Figure 3 Make sure the Tilt Base and optional DXE RADP 3 Radial Plate are oriented correctly for the direction you wish to tilt the antenna See Figure 8 wh...

Страница 12: ...nuts From the inside of the channel insert a 2 hex head bolt with a flat washer through each of the middle four holes through the backing plate Put on the aluminum spacer a split washer and a plain h...

Страница 13: ...e section tube should extend 1 3 4 beyond the bottom of the U bolt clamp The feedpoint hardware should be coming out on the left side as you look at the lower section as shown in Figure 6 When tighten...

Страница 14: ...htly loose Figure 7 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 This will allow proper movement of the Tilt Base...

Страница 15: ...bind up and bend the lower bolts The 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 s...

Страница 16: ...minum tubing sections to bind during assembly Do not use any type of oil or general lubricant between the aluminum tubing sections Oils or general lubricants can cause poor electrical connections for...

Страница 17: ...l assembly body of the clamp should be positioned between the slits in the tubes and 1 8 from the edge of each tube as shown in Figure 9 Figure 9 Using Figure 10 and Figure 11 for dimensions assemble...

Страница 18: ...17 Figure 11 MBVA 1UP Section Dimensions...

Страница 19: ...on the bottom section to make the fit easier Slide the band clamp down to the edge of the bottom section between the slits and tighten Overall antenna length from the top to the feedpoint is 43 feet...

Страница 20: ...e never excessively loose before raising They should be first tightened securely and then backed off no more than 1 2 turn Once the antenna is fully raised tighten the tilt base hardware Top two Nyloc...

Страница 21: ...e section open the upper and lower custom studded element clamps as shown in Figure 13 Figure 13 Position the UNUN Mounting Bracket so the bottom element clamp is located between the feedpoint hardwar...

Страница 22: ...t blade screwdriver or nut driver snug them up as shown in Figure 15 Note position of lower clamp is between the feedpoint hardware and the U Bolt Figure 15 Position the UNUN so it faces forward Tight...

Страница 23: ...to the terminal on the DXE UN 43 UNUN closest to the Red on the label as shown in Figure 16 Do not over tighten the wing nuts Hand tighten them only do not use pliers or other tools to over tighten t...

Страница 24: ...most tuning problems are encountered One needs to examine the complex impedance R j to see the problem On 160 meters the use of 150 feet of polyethylene dielectric cable such as DXE 213U which has a...

Страница 25: ...24 Figure 17 Completed Base Assembly for Reference...

Страница 26: ...e capable of tuning this type of high performance vertical antenna system Tuners which are built into transceivers lack sufficient impedance tuning range for this type of high performance vertical ant...

Страница 27: ...are tied to the earth anchors that are screwed into the ground at about the same angle as the ropes will be When using the Tilt Base position the guy wires as shown below This will make it easy to ra...

Страница 28: ...d PL 259 and N connectors normally designed for RG 8 sized cables Attenuation 100 ft Power Rating Efficiency 0 4 dB 5 MHz 4 9 kW 90 0 6 dB 10 MHz 3 4 kW 87 1 0 dB 30 MHz 2 0 kW 79 1 3 dB 50 MHz 1 5 kW...

Страница 29: ...st much longer in contact with soil than bare wire The DXE RADW 500K or 1000K kit provide everything you will need to build the perfect radial system 500 1000 ft spool of 14 AWG stranded copper wire w...

Страница 30: ...ns 300 pack 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 Depe...

Страница 31: ...t can occur with the slightest roughness Only a couple of revolutions with very light pressure is needed to produce excellent results DX Engineering Tube Deburring Tools may be used to debur tubing an...

Страница 32: ...tive by reason of improper installation damaged from severe weather including floods or abnormal environmental conditions such as prolonged exposure to corrosives or power surges or by the performance...

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