DX Engineering DXE-AL24 Manuale utente

Vertical Antenna

for use with

Hi-Z Antennas’

Receive Antenna Systems

DXE-AL24

DXE-AL24-INS-Revision 2

DXE-AL-24 shown with

Optional Hi-Z amplifier installed

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]

- 1 -

Table of Contents

Introduction

Features

Manual Updates

Warning

Tools Required

DXE-AL24 Parts List

Additional Material Needed, Not Supplied

Suggested Parts Not Included

Installation

Site Selection

Mounting Pipe

Assembly

Mounting Plate Assembly

Assembling the Vertical Sections

Element Assembly

Mating the Vertical Elements to the Mounting Plate

Attaching the AL-24 to the Mounting Pipe

Guying a Vertical Antenna System

Optional Accessory Items

Technical Support and Warranty

DXE-AL-24 shown with

Optional Hi-Z amplifier installed

- 2 -

Introduction

The DX Engineering DXE-AL24 is a vertical antenna specifically designed for use with the

optional Hi-Z Antennas’ Receive Antenna Systems using the Hi-Z Plus-6 High Impedance

Amplifier.

The DXE-ALE-24 does not come with any Hi-Z components. The user will have to purchase the

optional Plus-6 High Impedance Amplifier for each AL-24 antenna.

The DXE-AL-24 vertical antenna is built with 6063 corrosion-resistant Aluminum Tubing

Elements, custom drilled Mounting Plate, Stainless Steel V-Clamps, Cast Aluminum Saddle

Clamps and Stainless Steel hardware, this antenna is very durable and attractive.

Hi-Z Antennas has been producing excellent low band receiving systems for many years. Hi-Z’s

focus on improvements to low noise components and array systems

has been a singular goal that has resulted in high performance

receiving antennas for Amateur and radio enthusiasts, especially for

160 meters, 80 meters and AM DXing. Hi-Z Antennas’ specialized

systems have been pushing the boundaries of weak signal HF

reception with directional arrays that have been installed and used

around the world. They are recommended by some of the world’s leading contesters and DXers and

are now available exclusively from DX Engineering.

Refer to the Hi-Z Antennas’ receive systems for various layout schemes for the particular Hi-

Z system you are installing. Hi-Z products are available from DX Engineering and can be

seen on the DX Engineering web site at:

www.DXEngineering.com

DXE-AL24 Features

The DXE-AL-24 vertical antenna system includes the antenna elements, stainless steel clamps, cast

aluminum clamps, custom mounting plate and stainless steel hardware.

24 feet 1 inch overall height from ground level

Drilled Aluminum Mounting Plate for Hi-Z Plus-6 High Impedance Amplifier

Rugged base to sleek top for low wind resistance

Custom made for use with the Hi-Z Plus-6 High Impedance Amplifier

Special Low Capacitance Fiberglass Element to Base Mating Design

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 contact DX Engineering ([email protected]) for the latest revision

manual.

- 3 -

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

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

Medium size flat blade screwdriver or 1/4”nut driver for the smaller element clamps

Phillips head screwdriver

Tape measure

Felt-tip marker

- 4 -

DXE-AL24 Parts List

Qty

Description

Antenna Mounting Plate, Aluminum

2" V-Saddle Clamp, Stainless Steel with Stainless Steel Hardware

0.75" Saddle Clamp, Cast Aluminum with Stainless Steel Hardware

10-24 x 3/4" Long Hex Head Bolt, Stainless Steel

#10 Flat Washer, Stainless Steel

#10 External Tooth Washer, Stainless Steel

#10 Split Washer, Stainless Steel

10-24 Hex Nut, Stainless Steel

Stainless Steel Machine Screw, Metric M4 x 40 mm, Phillips Pan Head

0.875" Element Clamp, Stainless Steel

0.750" Element Clamp, Stainless Steel

0.625" Element Clamp, Stainless Steel

Wire Assembly, 14 AWG, Black Insulation with #10 Ring Terminals, 5.25" Long

Fiberglass Rod, Solid, 0.750" OD x 18” Long

0.875" Element Clamp with Welded Stud and Stainless Steel Hardware

0.875" OD Element Tube, Aluminum, 0.058” Wall, 72” Long, Slit Both Ends

0.750" OD Element Tube, Aluminum, 0.058" Wall, 72" Long, Slit 1 End

0.625" OD Element Tube, Aluminum, 0.058" Wall, 72" Long, Slit 1 End

0.500" OD Element Tube, Aluminum, 0.058" Wall, 72" Long, Slit 1 End

Black Vinyl End Cap 0.437" ID

Additional Material Needed but not Supplied:

Antenna Mounting - Steel mounting pipe, up to 2.0″OD, 0.25″wall thickness, 3 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)

Hi-Z Plus-6 High Impedance Amplifier - one for each antenna used, depending on the Hi-Z

system purchased.

Suggested Parts Not Included

JTL-12555 Jet-Lube SS-30 - To ensure good connection for aluminum element sections

and also used on the threads of Stainless Steel Hardware to prevent galling and aid in proper

tightening torque.

- 5 -

Installation

Site Selection

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

24 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

receive antenna performance.

Mounting Pipe

Use a customer supplied thick-walled galvanized steel mounting pipe

at least 3 feet long. This will allow approximately 2 feet or more to

be below ground and 11 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 levels on the mounting pipe as you fill the hole to be sure is

vertically 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.

- 6 -

Assembly

The DXE-AL24 shipping boxes contain the vertical tubing element sections, mounting plate, two

DXE-SSVC-2P 2" V-Bolt assemblies, two cast aluminum saddle clamps, three stainless steel

element clamps, two custom wire assemblies with ring terminals, one stainless steel element clamp

with welded stud, one solid fiberglass mating rod, a black vinyl cap and stainless steel hardware.

Carefully un-box the antenna and separate the various parts. All four of the aluminum tubing

element sections are 72" long. The bottom 7/8" OD aluminum tube element is slit on both ends. The

other three aluminum tubing elements are slit on one end.

Note: JTL-12555 Jet-Lube SS-30 should be used between all antenna element sections. Jet-

Lube 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. It should also 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.

Mounting Plate Assembly

For reference, Figure 1 shows a completed mounting

plate assembly with the optional Hi-Z Plus-6 High

Impedance Amplifier. Please refer to this figure when

performing the following assembly procedure.

Figure 1 - Completed Mounting Plate Assembly

Reference Drawing showing the

optional Hi-Z Plus-6 High Impedance

Amplifier installed

- 7 -

Locate the Aluminum Mounting Plate and the two 3/4” U-Bolt Cast Aluminum Saddle Clamps with

stainless steel mounting hardware. Loosely assemble the two Cast Aluminum Saddle Clamps to the

mounting plate as shown in Figure 2.

Figure 2 - Aluminum Saddle Clamps

Install the solid Fiberglass Rod through the two aluminum Saddle Clamps as

shown in Figure 3.

Note the solid Fiberglass Rod bottom will be flush with the bottom of

the Mounting Plate.

Tighten the aluminum Saddle Clamps evenly taking care not to crush or

damage the solid Fiberglass Rod.

Tighten the hex nuts evenly until the split washers are flush.

Figure 3

- 8 -

Locate the two DXE-SSVC-2P Stainless Steel V-Clamps and stainless steel mounting hardware.

Loosely install the two V-Clamps on the back side of the mounting plate as shown in Figure 4.

Figure 4 - V-Saddle Clamp Installation

To mount the optional Hi-Z Plus-6 High Impedance Amplifier to the mounting plate, the four

screws that hold the lid on the case need to be removed and replaced with longer screws that go

through the Mounting Plate and secure the amplifier. Using a Phillips head screwdriver, carefully

remove the four screws as shown in Figure 5.

Figure 5 - Four Case Screws Removed

- 9 -

Turn the case over and place the optional Hi-Z Plus-6 High Impedance Amplifier on the mounting

plate as shown in Figure 6.

Note the position of the two threaded studs and the label on the optional Hi-Z Plus-6 High

Impedance Amplifier when properly placed on the Mounting Plate.

While holding the optional Hi-Z Plus-6 High Impedance Amplifier case and lid firmly in place,

install the four new metric screws (Stainless Steel Machine Screw, Metric M4 x 40 mm, Phillips

Pan Head ) through the Mounting Plate into the Hi-Z Plus-6 High Impedance Amplifier. Tighten

snugly, but do not over tighten which may damage the plastic case.

Figure 6 - Attaching the optional Hi-Z Plus-6 High Impedance Amplifier

to the Mounting Plate

Using the 10-24 x 3/4” Hex Head Bolt and #10 hardware, install the grounding bolt and hardware in

the hole near the bottom of the Mounting Plate as shown in Figure 7. Install it snugly so it won’t

come loose while handling. A later step in this procedure will have you installing your ground

connection at this point.

Figure 7 - Ground Connection Hardware

Indice

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