DX Engineering DXE-40VE-2 Manuale utente

40 Meter

Vertical Antenna

with Top Hat

DXE-40VE-2

DXE-40VE-2-INS-Revision 0

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

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Table of Contents

Introduction

Features

Warning

Tools Required

DXE-40VE-2 Parts List

Manual Updates

Suggested Parts Not Included

Additional Material Needed, Not Supplied

Installation

Site Selection

Radial System

Mounting Pipe

Assembly

Radial Plate to Mounting Pipe

Attaching Ground Radial Wires to the Radial Plate

Tilt Base to Mounting Pipe

Vertical Base Section

Base Section to Tilt Base

Assembling the Vertical Sections

Mating the Vertical Sections to the Tilt Base

Top Hat

Top Hat Parts List

Top Hat Assembly

Raising The Vertical

Feedpoint Connection

Tuning the Vertical

Operation on 30 meters

Guying a Vertical Antenna System

Optional Accessory Items

Technical Support and Warranty

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Introduction

The DX Engineering 40VE-2 is a fast taper single-band vertical antenna system with a low profile

top hat assembly and is slightly less than 25 feet in height. The vertical antenna is specifically

designed for low visibility, great for HOA restricted areas, while providing optimum performance

on 40 meters. The DXE-40VE-2 can be modified for single-band operation on 30 meters by

shortening the height. There are no traps, coils or linear loading elements. Designed with 6063

corrosion-resistant aluminum tubing and stainless steel hardware, this antenna is very durable,

attractive and offers a low profile that will blend into the surroundings in areas where antennas may

be restricted.

Features

The DXE-40VE-2 vertical antenna system includes the vertical antenna elements, custom designed

top hat assembly using the patented DX Engineering MPH-1 Hub (US Patent No. 7,321,340) and

the patented DX Engineering End Insulators (US Patent No. D 534,905). All stainless steel clamps

element clamps, mounting plate assembly with a robust EXTREN®channel insulator, patented laser

cut DX Engineering Tilt Base with stainless steel hardware (US Patent No. 7,432,875). All stainless

steel Feedpoint Hardware, Cast Aluminum DX Engineering Saddle Clamps with Stainless Steel U-

Bolts and two DXE-SSVC-2P Stainless Steel Mounting Clamps.

Full band coverage on 40 meters - Can be modified for full band coverage on 30 meters

Less than 25 feet overall height for 40 Meters - 15 Feet overall height if used on 30 meters

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

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

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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)

5/16”, 3/8”, 7/16”, and 1/2”wrenches or

5/16”, 3/8”, 7/16”, and 1/2”sockets and drive

Medium size flat blade screwdriver or 5/16”nut driver for the element clamps

Tape measure

Felt-tip marker

DXE-40VE-2 Parts List

Description

Quantity

Description

Quantity

Tilt Base Assembly (patented)

Antenna Elements and Element Clamps

Tilt Base, 3/16" Laser Cut Stainless Steel

2.00 x 0.125" x 36" Tube (Drilled)

DXE-SSVC-2P V-Bolt Saddle Clamp

2.125" x 0.058" x 36" Tube (Split both ends)

Tilt Base, Mast Mount EXTREN®Channel

2.000" x 0.058" x 36" Tube (Split one end)

Tilt Base Plate, Aluminum

1.875" x 0.058" x 36" Tube (Split one end)

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

1.750" x 0.058" x 36" Tube (Split one end)

1/4" Flat Washer

1.625" x 0.058" x 36" Tube (Split one end)

1/4" Split Washer

1.500" x 0.058" x 36" Tube (Split one end)

1/4" Dia. X 1/4" x 1/2" OD Aluminum Spacer

1.375" x 0.058" x 36" Tube (Split one end)

1/4-20 Hex Nut

1.250" x 0.058" x 36" Tube (Split one end)

1/4" Fender Washer, 1" OD

1.125" x 0.058" x 36" Tube (Split one end)

1/4-20 Flanged Nut

DXE-ECL-12SS - Element Clamp

1/4-20 Nyloc Nut

DXE-ECL-16SS - Element Clamp

3/8" U-Bolt Kits w/Alum. Saddles & Hardware

DXE-ECL-20SS - Element Clamp

DXE-ECL-24SS - Element Clamp

DXE-ECL-28SS - Element Clamp

Black Top Vinyl Cap - 1-1/8” ID

Feedpoint Connection Hardware

Top Hat Assembly

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

DXE-MPH-1 Multi-purpose Hub (patented)

1/4" External Tooth Washer

40VA-2 Top Hat Support Bracket

1/4" Flat Washer

DXE End Insulator (patented)

1/4-20 Hex nut

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

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

1/4-20 Square Nut

1/4-20 Hex Nut

1/4” Split Lock Washer

1/4” Flat Washer

1/4” External Tooth Washer

#10 Aluminum Spacer

#10 x 3/4” Hex Head Bolt

#10 Thin Flat Washer

#10 External Tooth Washer

#10-24 Nyloc Hex Nut

Top Hat Wire Assembly w/ #10 Ring Term

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.

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Suggested Parts Not Included

DXE-RADP-3 Radial Plate (US Patent No. 6,927,740 and D533,167):

Made from Laser Cut Stainless Steel with 20 Sets of Stainless Steel Radial Attachment

Hardware. The DX Engineering Radial Plate is meant for those of you having a

vertical antenna and wanting an easy, neat and effective way to connect those essential

radial wires to your antenna system for the highest efficiency and strongest signals.

DXE-SSVC-2P Stainless Steel V-Clamp:

One required for mounting the optional DXE-RADP-3 Radial Plate to the antenna mounting

pipe of 1" to 2" outside diameter.

DXE-RADW Radial Wire Kits and Components:

There are optional DX Engineering Radial Wire Kits available. DXE-RADW-500K/BD contains a

500 foot spool of 14 gauge copper stranded 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 Ft lengths.

DXE-112-KIT - DX Engineering Chassis Mount Coaxial Connector

DX Engineering Chassis Mount Connectors are RF connectors that provide a positive,

secure connection for your coaxial connections to you radio or antenna system. Offering

high-quality Amphenol® and non-Amphenol brand SO-239 chassis mount connectors for

you to choose from, with silver plated conductors and PTFE dielectric or glass-reinforced

PBT insulation to ensure the best performance for your application. SO-239 panel mount connectors

are also available and all connectors come with the correct hardware.

Additional Material Needed but not Supplied:

Antenna Mounting - Steel mounting pipe, up to 2.0″OD, 0.25″wall thickness, 4 feet long.

The standard 1-1/2" galvanized water pipe (with its 1.9" OD) is just fine for this application

and can usually be found at your local home building supply store.

Quik-Set Concrete - Mounting pipe installation (type depends on your landscape)

DXE-P8A - Penetrox™ A - To ensure good connection for aluminum element sections

UMI-81343 - Anti-Seize compound - used on the threads of Stainless Steel Hardware to

prevent galling and aid in proper tightening torque.

Installation

Site Selection

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

35 feet. Consider overhead power lines, utility cables and wires. The vertical should be mounted

away from local noise sources or other metallic objects which can re-radiate noise and affect the

tuning, radiation pattern and SWR. Determine the direction you want the antenna to tilt down and

make sure there is adequate clearance (at least 35 feet). There should also be a clear area around the

antenna for the guying and radial system that will extend away from the antenna.

- 5 -

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 32 feet long, should be used with 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 possible from the vertical antenna. DXE-RADW

Radial Wire, a 14 gauge stranded copper with black relaxed PVC

insulation wire is suggested for the best results.

The wire radials should placed as symmetrically as possible

straight from the feedpoint 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

feedpoint.

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,

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

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

slit in the soil.

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 20 inches above ground. A thick-walled steel pipe 1-

3/4" OD to 2" OD maximum is recommended with a minimum thickness

of 1/8" (1/4" preferred) should be used. The standard 1-1/2" galvanized

water pipe (with its 1.9" 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 at least 2 feet of pipe and a couple inches of

gravel at the bottom for drainage. Set the mounting 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 (depends on the

type of concrete you purchase). 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 is vertically straight. Allow to set overnight. Your

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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.

Assembly

The DXE-40VE-2 is shipped in multiple boxes. Carefully unpack the boxes and identify the parts

using the parts list.

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

sections. Penetrox™ A 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.

Note: 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.

Note: The following assembly instructions are based on using a 2" OD Mounting

Pipe, with the DXE-RADP-3 Radial Plate option.

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Radial Plate to Mounting Pipe

Install the optional DXE-RADP-3 Radial Plate (patented) on the 2" OD mounting pipe using an

optional DXE-SSVC-2P V-Bolt Saddle Clamp as shown in Figure 1. The standard 1-1/2"

galvanized water pipe (with 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 plate and the ground level. This will allow easy access to install

the radial wire hardware. The DXE-RADP-3 Radial Plate comes with 20 sets of stainless steel

hardware for mounting the radial wires. Mount the plate as shown in relation to how the Tilt Base

is mounted.

Figure 1 - Optional DXE-RADP-3

Radial Plate Installation

Attaching the optional Ground Radial Wires to the optional Radial Plate

Using the 20 sets of supplied 1/4" stainless steel hardware (Bolt, Star Washer, Flat Washer, Split

Washer, Nut that come with the optional Radial Plate) connect the optional ground radial wires to

the DXE-RADP-3 Radial Plate as shown in Figure 2. Additional hardware kits are available

(DXE-RADP-1HWK) that contain 20 sets of Radial Plate Hardware.

There are optional DX Engineering Radial Wire Kits available. DXE-RADW-500K/BD contains a

500 foot spool of 14 gauge copper stranded 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 Ft 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 (60 laser drilled holes), or up to 120 radials if

doubled up.

- 8 -

Radial Wire Pattern

Figure 2 - Radial Wire Hardware Installation

Tilt Base to Mounting Pipe

Install the Tilt Base to the customer supplied

2" OD mounting pipe using the two included

DXE-SSVC-2P V-Bolt Saddle Clamps

allowing approximately 4-1/2" clearance

between the bottom of the tilt base plate, to

the top of the DXE-RADP-3 Radial Plate as

shown in Figure 3. The standard 1-1/2"

galvanized water pipe (with its 1.9" OD) is

just fine for this application and can usually

be found at your local home building supply

store.

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 which shows the tilt action.

Tighten the clamps evenly so the length of

the exposed threads is approximately equal. Figure 3

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

nut.

Vertical Base Section

The base section is made up of an EXTREN®insulated mounting channel, an aluminum mounting

plate with hardware, two 2" x 3/8" U-Bolt assemblies and the base antenna section which is 2" OD

thick wall, 36" long with a hole drilled at bottom end for the feedpoint hardware.

- 9 -

Using Figure 4, attach the aluminum backing plate to the back of the insulated channel. The base

hardware kit contains four 2" hex head bolts, four flat washers, four aluminum spacers, four split

washers and four 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 hex nut. Tighten firmly, but not enough to crush the insulated channel.

Figure - 4

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

clamps, four 3/8" flat washers, four 3/8" split washers, and four 3/8" hex nuts as shown in Figure 6.

The base section tube should extend 1" beyond the bottom of the insulated channel.

The feedpoint hardware should be coming out on the left side as you look at the lower section as

shown in Figure 5.

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.

Figure 5

Indice

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