DX Engineering DXE-MBVE-5A Manual de usuario

Multi-Band

Vertical Antenna

160 through 10 Meters

with the patented

SAF-T-TILT™ Base

DXE-MBVE-5A Series

US Patent Nos. 654,064 and 8,686,919

DXE-MBVE-5A-Series - INS-Revision 1b

1200 Southeast Ave. - Tallmadge, OH 44278 USA MBVE-5 Shown with optional UNUN

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

Manual Updates

DXE-MBVE-5A Models Available

DXE-MBVE-5A Remote Tuner Upgrades Available

Tools Required

Warning

Suggested Parts

Additional Material Needed, Not Supplied

Basics for All New Installations

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

SAF-T-TILT™ Antenna Base Section Assembly

Aluminum Tubing Information

Assembling the Vertical Sections

Mating the Vertical Sections to the Tilt Base

Raising The Vertical

Assembling the Optional UNUN Mounting Bracket

Installation of Optional UNUN Assembly

Feedline Connections

Tuning the Vertical

Coaxial Cable and 160 Meter Notes

Guying a Vertical Antenna System

DXE-MBVE-5A Parts List

Exploded View of the DXE-MBVE-5A

Appendix A - MFJ-927 Optional Remote Tuner

Appendix B - Extended Base Remote Tuner Options

Extended Base Tube Exploded View Drawing

Upgrade Hardware Exploded View Drawing

Appendix C - MFJ-993/994BRT Remote Tuner Option

Appendix D - MFJ-998RT Remote Tuner Option

Appendix E - Bias Tee Information

Parts Listings for DXE-MBVE-THW and TBHW

Parts Listings for DXE-MBVE-5A-UGHW

Optional Accessory Items

Technical Support and Warranty

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Introduction

The DX Engineering DXE-MBVE-5A series of antennas are designed from the ground up to offer

ease of use, reliability and performance. A fast taper multi-band vertical antenna system with the

patented SAF-T-TILT™ base (US Patent Nos. 654,064 and 8,686,919). The massive 3/8” thick

rugged aluminum base allows easy, safe tilt action without unsafe removal of mounting hardware.

The vertical antenna operates from 160 meters through 10 meters using a good quality outboard

customer supplied tuner. There are also options available for remote tuners allowing operation at

200, 300, 600 or 1500 Watt power levels. 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 and attractive.

NOTE: The basic DXE-MBVE-5A requires an optional DX Engineering UN-43 UNUN and

optional UNUN Bracket DXE-UN-BRKT with recommended 150 feet of RG-213 coaxial cable

and a customer supplied in-shack wide range tuner or one of the optional remote tuners with remote

tuner mounting methods as described in this manual.

If you already own a DXE-MBVE-5 or 5A, there are optional upgrades available for use with

the remote tuner options for 200, 300, 600 or 1500 watt operation.

Basic DXE-MBVE-5A Antenna Features

Full band coverage from 160 through 10 meters - Outboard customer supplied wide-range

tuner is required

New massive SAF-T-TILT™ Base (US Patent Nos. 654,064 and 8,686,919) allows safe

raising and lowering of the antenna without hazardous removal of fastening hardware

High strength Delrin®thermoplastic insulator that won’t crack, splinter, peel or fail

Rugged structural grade type 6063-T832 drawn aluminum vertical radiator - the best alloy

for high strength, long lasting antenna applications

Fast taper from rugged base to sleek top for the lowest wind resistance

No coils or traps –Maximum radiation efficiency

Power handling up to 5 kW - built to last

All stainless steel hardware - very durable and attractive

Free standing to 92 mph wind speeds

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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DXE-MBVE-5A Models Available

DX Engineering

MBVE-5A

Model Numbers

SAF-T-TILT™ Base

DXE-MBVE-5A with

Short Base Tube

DXE-MBVE-5AE with

Long Base Tube

DXE-RADP-3 Radial Plate

DXE-UN-43 UNUN

and DXE-UN-BRKT

Mounting Bracket and

DXE-UNFK-5 UNUN to

MBVE-5 Feedpoint

Connection Kit

MFJ-927Remote Tuner

200 Watt

MFJ-993/4BRT Brackets

MFJ-993BRT Tuner

300 Watt

MFJ-994BRT Tuner

600 Watt

MFJ-998RT Brackets

MFJ-998RT Tuner

1500 Watt

DXE-MBVE-5A

Req’d

DXE-MBVE-5A-4P

Req’d

DXE-MBVE-5A-4UP

DXE-MBVE-5A-4UPR

DXE-MBVE-5A-3ATP

optional

not applicable

DXE-MBVE-5AE-BRT

optional

not applicable

DXE-MBVE-5AEBRT3

not applicable

DXE-MBVE-5AEBRT4

not applicable

DXE-MBVE-5AE-RT

optional

not applicable

DXE-MBVE-5AERT8

not applicable

X= Included Reqd = Required (see text) optional = Purchase is optional (see text explaining the importance of a radial system)

DXE-MBVE-5A60MCK: Also available is a conversion kit to change the MBVE-5A Multi-

Band antenna into a 60 meter Mono-Band Antenna

DXE-MBVE-5 or 5A Remote Tuner Upgrade Models Available

If you are upgrading from an existing DXE-MBVE-5 or 5A system with the original short

base tube to a MBVE-5A with a MFJ-993BRT, MFJ-994BRT or MFJ-998RT remote tuner,

the following upgrade kit options are available.

Upgrade kits include new longer base tube, brackets, remote tuners as selected below.

DX Engineering

Upgrade Model

Numbers

DXE-MBVE-5AEBASE -

Long Base

DXE-RADP-3 Radial Plate

DXE-MBVE-THW

Hardware Kit

DXE-MBVE-TBHW

Hardware Kit

DXE-MBVE-5A-UGHW

Hardware Kit

MFJ-993/4BRT - Brackets

MFJ-993BRT - Tuner

300 Watt

MFJ-994BRT - Tuner

600 Watt

MFJ-998RT - Brackets

MFJ-998RT - Tuner

1500 Watt

DXE-MBVE-5UG-BRT

optional

DXE-MBVE-5UGBRT3

optional

DXE-MBVE-5UGBRT4

optional

DXE-MBVE-5UG-RT

optional

DXE-MBVE-5UGRT8

optional

X= Included optional = Purchase is optional (see text explaining the importance of a radial system)

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PLEASE - Read the entire manual to be familiar with the various options

available. Some of the assembly steps are common for all models.

This manual describes in detail the DXE-MBVE-5A-4UPR antenna package

which includes the basic antenna with the DXE-RADP-3 Radial Plate, DXE-

43 UNUN and DXE-UN-BRKT.

Other sections in this manual describe the models using the remote tuner

options.

Refer to the DXE-MBVE-5A60MCK if you are converting the MBVE-5A to a

Mono-Band 60 Meter Antenna

Upgrade kits for existing MBVE-5/5A systems use the kit parts for MFJ-

993/994BRT or MFJ-998RT remote tuner option installations.

The vertical elements for all models are the same.

The SAF-T-TILT™ Base is the same for all models with one exception. The

thick wall base tube is longer for the tube mounted remote tuner options.

This manual describes in detail the DXE-MBVE-5A-4UPR antenna package which includes

the basic antenna with the DXE-RADP-3 Radial Plate, DXE-43 UNUN and DXE-UN-BRKT.

Tools Required

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

5/16”, 3/8”, 9/16”, and 3/4” wrenches or

5/16”, 3/8”, 9/16”, and 3/4” 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

Tape measure

Black Felt-tip marker or pencil

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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.

Suggested Parts

DXE-RADP-3 - Radial Plate, Stainless Steel with 20 Sets of SS Radial Attachment Hardware

The patented DX Engineering Radial Plate is meant for those of you that have or are

building a quarter wave vertical antenna and who want an easy, neat and effective

way to connect those essential radial wires and the coax to your vertical antenna for

the lowest takeoff angle and strongest signals. DX Engineering Radial Plate is laser

cut from tough stainless steel so that it has smooth edges, won’t corrode and will

always look good. You will be proud of how good your installation looks. This plate

will work perfectly with most commercially available vertical antennas.

DXE-SSVC-2P - Stainless Steel V-Clamp for steel pipe, 2 inch V-bolt

This V-Clamp is made in one size that fits Steel tubing or pipe from 1" to 2'' OD as used in antenna

construction. The supplied V-bolt is long enough to attach tubing to thick plates and is

made with anti-corrosive properties. The special Stainless Steel saddle has serrated teeth

will clamp to the pipe securely by biting into the surface. For this reason, it is not

recommended for softer aluminum tubing or pipe. Ideal for fastening a radial plate and

antenna mounting to a steel pipe.

Used to clamp 1 to 2'' (OD) steel tubing or pipe

Designed for attachments that don't require resistance to torque

V-bolt and saddle made from high-strength 18-8* stainless steel

*The use of an anti-seize compound is HIGHLY recommended to

achieve proper torque and prevent galling.

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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 relaxed 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 relaxed 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-GUY-200 Guying Kit for Vertical Antennas

Some vertical antenna manufacturers indicate their antennas do not need guying. During times of

high winds or ice loading, some of these vertical antennas may sustain damage or fail altogether.

With the small amount of effort needed to install a four point guying system, the risk hardly seems

worth taking. A four-point guying scheme provides the best mechanical advantage to reduce wind

stress, regardless of direction. A four point guying system is recommended for use with the DX

Engineering SAF-T-TILT™ Base, because just one of the guy ropes has to be loosened when you

tilt the vertical antenna down. The remaining guys help stabilize the vertical antenna in three

directions when being raised. For details on guying this antenna, refer to the Guying a Vertical

Antenna System page.

See these and other options available from DX Engineering for this antenna system in this manual

refer to the Optional Accessory Items page.

Additional Material Needed but not Supplied:

JTL-12555 Jet-Lube™SS-30 Pure Copper Anti-Seize 12555 - To ensure good electrical

and RF connection for Aluminum Element Sections and also used on the threads of Stainless

Steel Hardware to prevent galling (seizing) and aid in proper tightening.

For a new installation: 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.

For a new installation: Quick-Set or other type of Concrete - Mounting pipe installation

(type depends on your particular conditions and landscape).

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Basics for All New Installations

Site Selection

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

55 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 55 feet). There should also be a clear diameter of 70

to 130 feet from the antenna for the guying and radial systems that will extend away from the

antenna.

Radial System

The use of a radial system is a key requirement for any 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 the 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, 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. Radials can also be

buried just under the surface by using a power edger to make a slit in the soil.

- 8 -

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 quick 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 it is vertically straight. Allow to set overnight or per the concrete

manufacturer’s recommendations. 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. A black vinyl cap (DXE-VC-2000, for 2” pipe) can be used to cap the top of the

mounting pipe to prevent water and debris from getting into the pipe.

NOTE: When installing the MFJ-927 Remote Tuner option at the base of the

antenna - the Mounting Pipe length above ground must be 24 inches to allow

room for the remote tuner and mounting shelf. Refer to the DXE-MBV-ATU-1

manual for details.

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

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

long. The 2-1/8" OD antenna element is slit on one end and drilled on the other end. All the other

sections are slit on one end except for the top 3/8” OD element.

Note: JTL-12555 Jet-Lube™SS-30 Anti-Oxidant should be used between all antenna element

sections. Jet-Lube™SS-30 is an electrical joint compound to affect a substantial

electrical connection between metal parts such as aluminum tubing or other antenna

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

preventing corrosion or oxidation. Jet-Lube™SS-30 should also be used on all element

clamps and stainless steel threaded hardware to provide good electrical contact,

prevent galling, allow easier disassembly and to ensure proper tightening.

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Note: The following assembly instructions are based on the MBVE-5A-4UPR

which includes the DXE-RADP-3 Radial Plate and the DXE-UN-43

UNUN, DXE-UN-BRKT Bracket with hardware using a customer

supplied 2" OD Mounting Pipe.

Note: For reference purposes, an exploded drawing of the completed SAF-T-TILT™ base

is show in Figure 21.

Radial Plate to Mounting Pipe

Install the patented DXE-RADP-3 Radial Plate on the 2" OD customer supplied mounting pipe

using the 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. Additional hardware kits are available from DX

Engineering: DXE-RADP-1HWK contains 20 sets of Radial Plate Hardware. Check which

direction you want the antenna to tilt. Mount the radial plate as shown in relation to the SAF-T-

TILT™ Tilt Base. For reference, Figure 19 shows a completed installation.

Figure 1 - DXE-RADP-3 Radial Plate Installation on customer supplied mounting pipe

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