DX Engineering DXE-30VE-1 Bedienungsanleitung

30 Meter

Vertical Antenna

DXE-30VE-1

DXE-30VE-1-INS-Revision 12b

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: [email protected]

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Table of Contents

Introduction

Warning

Overhead Power Line Safety

Tools Required

Parts Included

Installation

Site Selection

Mounting Pipe

Radial System

Assembly

Vertical Base Section

Base Section to Mounting Pipe

Assembling the Vertical Sections

Tuning the Vertical Antenna System

Guying the Vertical Antenna System

Appendix A - Optional Radial Plate

Appendix B - Optional Tilt Base

Appendix C - Optional Vertical Feedline Current Choke

Optional Accessory Items

Technical Support and Warranty

Introduction

The DX Engineering DXE-30VE-1 is a fast taper 24 feet high, 30 meter monoband vertical antenna

system. The vertical antenna operates over the entire 30 meter band with a SWR less than 1.5:1.

There are no traps, coils or linear loading elements to rob power. Designed with 6063 corrosion-

resistant aluminum tubing and stainless steel hardware, this antenna is very durable and attractive.

The antenna may be used as a monoband antenna on a higher frequency by simply telescoping the

tubing inward to a quarter wavelength on the desired band.

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The DXE-30VE-1 vertical antenna system includes the antenna elements, stainless steel clamps,

mounting plate assembly, and stainless steel hardware.

Full band coverage on 30 meters with SWR under 1.5:1 - No Tuner needed

24 feet overall height

Fast Taper from rugged base to sleek top for low wind resistance

No Coils or Traps - Maximum Radiation Efficiency

Power Handling up to 5 kW - built to last

Perfect for Four Square or Phased Array systems

Easily shortened for resonance on higher bands

WARNING!

INSTALLATION OF ANY ANTENNA NEAR POWER LINES IS DANGEROUS

Warning:Do not locate the antenna near overhead power 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 telephone or cable lines: check with your electric utility for

advice.

Although overhead power lines may appear to be insulated, often these coverings are intended only

to protect metal wires from weather conditions and may not protect you from electric shock

Keep your distance! Remember the 10-foot rule: When carrying and using ladders and other long

tools, keep them at least 10 feet away from all overhead lines - including any lines from the power

pole to your home.

Tools Required

Two 7/16 wrenches, (one of them should be open-end)

Medium size standard screwdriver or 5/16 nut driver for the element clamps

3/16 and 1/4 nut drivers or wrenches

Tape measure and Felt-tip marker.

Antenna analyzer. The MFJ-259B is a suggested unit to facilitate the fine tuning of the vertical

antenna system.

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Parts Included

Description

Quantity

Mount Plate

Mast Mount Channel

3/8 U-Bolt x 2" ID x 3.25" leg, Saddle & Hardware

1/4-20 x 1" Hex Head Bolt

1/4" Star Washer

DXE-CAVS-1P V-Saddle Clamp

DXE-ECL-10SS - Element Clamp

DXE-ECL-12SS - Element Clamp

DXE-ECL-16SS - Element Clamp

DXE-ECL-20SS - Element Clamp

DXE-ECL-24SS - Element Clamp

Black Vinyl Cap

1/4-20 x 2" Hex Head Bolt, full thread

Aluminum Spacer

1/4-20 Hex Nut

1/4" Split Washer

1/4" Flat Washer

Antenna Element Parts

Quantity

2" (2.00") x 36" Tube, Drilled (slit one end)

1-7/8" (1.875") x 18" Tube, Cut, Drilled

1-7/8" (1.875") x 36" Tube (slit one end)

1-3/4" (1.750") x 36" Tube (slit one end)

1-5/8" (1.625") x 36" Tube (slit one end)

1-1/2" (1.500") x 36" Tube (slit one end)

1-3/8" (1.375") x 36" Tube (slit one end)

1-1/4" (1.250") x 36" Tube (slit one end)

1-1/8" (1.125") x 36" Tube (slit one end)

1" (1.000") x 36" Tube (slit one end)

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.

Installation

Site Selection

Select a mounting location clear from power lines, structures and other antennas by a minimum of

34 feet (24 + 10 for the 10 foot safety rule). Consider overhead power lines, utility cables and

wires. The further away the vertical is mounted from local noise sources or other metallic objects,

which can re-radiate noise and affect the tuning, radiation pattern and SWR, the better. If you are

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installing the optional DXE-TB-4P Tilt Base, determine the direction you want the antenna to tilt

down and make sure there is adequate clearance. There should be sufficient room for a radial

system that should extend away from the antenna equally in all directions, if possible.

Mounting Pipe

Use a customer supplied thick-walled galvanized steel mounting pipe at least 4

feet long. This will allow approximately 2 feet or more to be below ground and

2 feet above ground. A thick-walled steel pipe 1-3/4" OD maximum is

recommended with a minimum thickness of 1/8" (1/4" preferred) should be

used. The standard 1-1/4" galvanized water pipe (with its approximate 1.7" OD)

is just fine for this application and can usually be found at your local home

building supply store. For permanent mounting, use a post-hole digger to make

the hole deep enough to accommodate 2 feet of pipe and a couple inches of

gravel at the bottom for drainage. Set the pipe on the gravel, use the pre-mix

concrete to fill around the pipe, adding water and mixing as you fill or mix the

concrete first, then pour in the hole. Fill the hole until the concrete is level with

the ground around it. Use a level as you fill the hole to be sure the pipe is

straight. Allow to set overnight. 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 steel, rather than aluminum, is much more suitable for mounting in concrete.

Aluminum will quickly corrode due to incompatibility with the materials used to make

concrete.

Radial System

The use of a radial system is a key requirement for a high performance quarter wave vertical

antenna system. With a vertical antenna system, the radials are the second half of the antenna. The

radials contribute to the radiation efficiency of the entire vertical antenna system.

At a minimum, 20 radials, each 20 feet long, should be used with this antenna. Using 32 radials at

20 feet long is preferred and highly recommended. The extra radials may help overcome unknown

poor-soil conditions, improve efficiency, and ensure the best performance possible from the vertical

antenna. Longer radials should be used for improved performance on the lowest frequency to be

used if your plans call for 60 or more radials. DXE-RADW Radial Wire Kits, are stranded 14 gauge

copper wire with a relaxed PVC insulation is suggested for the best results.

The wire radials should placed as symmetrically as possible around the vertical

antenna and spaced evenly, regardless of how many radials are used. Do not cross

or bunch any radial wires as this nullifies their effectiveness. If you have limited

space, put in as many straight radials as you can. The radials must be connected to

the shield of your feedline. The DXE-RADP-3 Stainless Steel Radial Plate is an

ideal optional item which provides an excellent system for attaching radial wires

to your vertical antenna system.

Radial wires can be laid on the roots of the grass using DXE-STPL Radial Wire Anchor Pins to

hold them down. Using enough staples will ensure the wires will not be snagged by mowers,

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people, or animals. Grass will quickly overgrow the radials and they will be virtually impossible to

see. An article describing this process is available the DX Engineering website in the Tech Info

section. Radials can also be buried just under the surface by using a power edger to make a slit in

the soil.

Assembly

The DXE-30VE-1 shipping box contains the vertical tubing sections, an insulated U-channel, two

U-Bolt assemblies, a backing plate, eight stainless steel element clamps, a black vinyl cap, and

stainless steel hardware.

Carefully un-box the antenna and separate the various parts. Eight of the element sections are 36"

long. The base element section is 36" long and nested inside the base element section is an 18"

section for added wall strength to the base element section. The base section drilled for the

feedpoint connection. The vinyl cap for the top element section should be installed after assembly

of the vertical is complete.

Note: DXE-P8A Penetrox A Anti-Oxidant should be used between all antenna element

sections. Penetrox is an electrical joint compound to affect a substantial electrical connection

between metal parts such as telescoping aluminum tubing or other antenna pieces. It ensures

high conductivity at all voltage levels by displacing moisture and preventing corrosion or

oxidation.

UMI-81343 Never-Seez or DXE-NSBT8 Anti-Seize should be used on all clamps, bolts and

stainless steel threaded hardware to prevent galling and to ensure proper tightening.

When assembling any telescoping aluminum tubing sections you should take the following steps:

1. Make sure the edges are smooth and not sharp. Deburring may be necessary, since burrs and

shavings can occur on seams as well as edges. All surfaces need to be completely smooth to

allow easy assembly of tubing sections.

Caution

Aluminum tubing edges can be very sharp.

Take precautions to ensure you do not get accidentally cut.

The raised particles and shavings that appear when the aluminum tubing is machined are

referred to as burrs, and the process by which they are removed is known as deburring.

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.

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 aluminum tubing to clear out any dirt or foreign material that would

cause the aluminum tubing sections to bind during assembly. Do not use any type of oil or

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general lubricant between the aluminum tubing sections. Oils or general lubricants can cause

poor electrical connections for radio frequencies.

3. Clean the outside of the aluminum tubing to clear any dirt or foreign material that would cause

the clamps to malfunction during assembly.

4. The use of DXE-P8A Penetrox A is highly recommended. Penetrox A is an electrical joint

compound which effects a substantial electrical connection between metal parts such as

telescoping aluminum tubing or other antenna pieces. Using Penetrox A assures high

conductivity at all voltage levels by displacing moisture and preventing corrosion or oxidation.

5. When assembling the aluminum tubing sections, ensure the area is clear of grass, dirt or other

foreign material that could cause problems during assembly of the closely fitted telescoping

sections.

Vertical Base Section

The base section is made up of an insulated mounting channel, an aluminum mount plate and the

base antenna section which is 36" long, with a hole drilled at one end. Nested inside the base

antenna section is an 18" piece of tubing with a hole drilled at one end, to add wall strength to the

base.

If you have

chosen to use

the optional

TB-4P Tilt

Base, refer to

the DXE-TB-

4P manual. You

will be using a

smaller

mounting plate.

Using Figure 1,

attach the

mounting plate

to the back of

the insulated

Figure 1 channel using

four 2" bolts, eight flat washers, four spacers, four split washers, and four nuts. Tighten firmly, but

not enough to crush the insulated channel. The spacers are required when the optional Tilt Base is

installed. They are being installed as shown on this plate to act as a washer and for safe keeping.

Locate the 36" base element section tube. The 18" tube is installed in the

36" tube aligning the feed through mounting holes. Install the feedpoint

hardware as shown in Figure 2.

Figure 2

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Install the lower tube on to the insulated channel using the two 3/8" x 2" U-Bolts, two saddle

clamps, four flat washers, four split washers, and four nuts as shown in Figure 1. Use the outer

upper and lower holes of the channel. When tightening, observe the split washers. When they fully

seat (flatten out), the clamp is tight enough. Any clamp should be tightened evenly from side-to-side

with an equal amount of thread above each nut.

Base Section to Mounting Pipe

Attach the completed base section to your steel ground mounted pipe using the two DXE-CAVS-1P

Saddle Clamps included, as shown in Figure 3. The standard 1-1/4" galvanized water pipe (with its

approximate 1.7" OD) is just fine for this application and can usually be found at your local home

building supply store. Use two V-Bolts, two saddles, four nuts, four flat and four split washers.

When tightening, observe the split washers. When they fully seat (flatten out), the clamp is tight

enough. Any clamp should be tightened evenly from side-to-side with an equal amount of thread

above the nut.

(This view shown without

insulated channel for clarity)

Figure 3

Assembling the Vertical Sections

Assemble the vertical in an area that is flat and has sufficient room for the length of the antenna

during assembly. Lay the element tubing out in descending diameter sizes of 1-7/8", 1-3/4", 1-5/8",

1-1/2", 1-3/8", 1-1/4", 1-1/8", and 1" with the slits in the element tubes toward the top of the

antenna (the 1" top element section does have slits but is installed with the slits downward). The

bottom element section you previously mounted in the base section is 36" long and all the other

element sections are 36" long.

Note: DXE-P8A -Penetrox A Anti-Oxidant should be used between all antenna element

sections. Penetrox is an electrical joint compound to affect a substantial electrical

connection between metal parts such as telescoping aluminum tubing or other

antenna pieces. It ensures high conductivity at all voltage levels by displacing

moisture and preventing corrosion or oxidation

- 8 -

Using a felt tip pen, measure and mark each of the 36" element sections at 4" as shown in Figure 4.

Figure 4

Locate the eight Element Clamps. Refer to Figure 6 for the placement of the different sized element

clamps. Slide the clamps over each element section before putting them together. Align the clamps

facing the same direction. For final assembly, all the clamps should be positioned close to the top of

each section and the body of the clamp should be positioned between the slits as shown in Figure 5.

Figure 5

Using Figure 6 on the next page, start the assembly with the bottom 1-7/8" section. Insert the

marked end of the 1-3/4" section into the 1-7/8" section until the 4 inch mark is even with the top of

the 1-7/8" section.

Position an element clamp at the very end, but not hanging over. Make sure the body of the clamp is

positioned between the slits and tighten securely.

Repeat the procedure for the each of the sections using the element clamps as required.

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Overall height

is 292"

24 ft 4 in

prior to final

adjustment.

Figure 6 - Antenna Assembly

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