DX Engineering HEXXAGONAL BEAM Mark 2 Manuale utente

HEXXAGONAL BEAM

Mark 2

DXE-HEXX-5TAP-2, DXE-HEXX-1TAP-2

DXE-HEXX-BEAM-MARK2-INS Rev. 6

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]

Table of Contents

Introduction

HEXXAGONAL BEAM Mark 2 Features

HEXXAGONAL BEAM Kits

Parts Lists

DXE-HEXX-1HBP - HEXX HUB (US Patent No. D605,184)

DXE-HEXX-1SCP-2 - HEXXAGONAL BEAM Spreader & Center Post

DXE-HEXX-5FFP HEXXAGONAL BEAM 5-Band Stainless Steel/PTFE Rigid

Feeder System (US Patent No. 8,669,91, US Patent No. D624,060, British Patent No. GB248003 B)

DXE-HEXX-5WRP-2 - HEXXAGONAL BEAM 5-band Wire Element & Wire Guide

DXE-HEXX-1WRP-2 - HEXXAGONAL BEAM 1-band Wire Element & Wire Guide

Parts Required but not supplied

Tools Required

Manual Updates

HEXXAGONAL BEAM Construction

Hexxagonal Hub Assembly Instructions (US Patent No. D605,184)

Working with Fiberglass

Center Post Assembly

5-Band Stainless Steel/PTFE Rigid Feeder System (US Patented & British Patented)

Installing the Center Post Rope Hub

Installing the optional Feedline Current Choke

Spreader Assembly

Installing the Wire Elements

Installation on a Mast and Rotator

SWR Testing

Single Band Wire Element and Wire Guide Package Instructions

Technical Support

Warranty

Introduction

The DX Engineering HEXXAGONAL BEAM KITS provide a fast,

economical way to build the hottest new design of an antenna concept

that has been around since the 1980’s. HEXXAGONAL BEAM

component kits are available for an easy, step-by-step approach to

designing your own antenna or to upgrade an existing installation.

The DX Engineering HEXXAGONAL BEAM Mark 2 Five Band Hexxagonal Beam Antenna

Package is a complete build-it-yourself system, including pre-assembled wire element kits,

assembled wire guide and rope attachment clamps and a revolutionary new Five-Band Stainless

Steel/PTFE Rigid Feeder System (US Patent No. 8,669,91, US Patent No. D624,060, British Patent No.

GB248003 B) which operates all bands, 20 thru 10 meters with a single

feedline. All hardware is high quality stainless steel. The pre-cut wire

elements are 14 gauge stranded copper with black PVC insulation with

special black wire guide tubes and ring terminals factory assembled.

The rope supplied is a double-braided Dacron/Polyester, not weakened

by decay or mildew and provides excellent resistance to abrasion. The

color sealed black polyester yarn used in the braided jacket also

protects the cord from damage due to ultra-violet light. The fiberglass

spreaders are measured and cut to length with pre-cut slits on one end

for proper tightening using the stainless steel band clamps. Also

included is the complete DX Engineering Hexx Hub (US Patent No.

D605,184). The cast aluminum Hexxagonal Beam Hub provides a

superior mounting platform with built-in v-saddle clamping channels

and all stainless steel v-bolts and hardware are included.

The DX Engineering HEXXAGONAL BEAM Mark 2 can offer gain

and front-to-back performance that exceeds your expectations for a

multi-band two element

beam, as its unique shape is

much smaller, better

balanced and has been

reported to receive less

noise than typical beams.

This lighter, easier to handle

antenna can be rotated with

a light duty rotator, and it

performs well, even when it

is not mounted very high

above the ground. With the

DX Engineering HEXXAGONAL BEAM Mark 2 and kits are based

on the G3TXQ design with a broadband, u-shaped reflector for better

coverage of the bands with low SWR. This is only one of the dramatic

improvements of the G3TXQ broadband design over the "classic"

dual-w hex beam antennas.

The patented Five Band Stainless Steel/PTFE Rigid Feeder System is a

revolutionary breakthrough for Hexagonal Beam Antennas!

This new Stainless Steel/PTFE Rigid Feeder System (US Patent No.

8,669,91, US Patent No. D624,060, British Patent No. GB248003 B) eliminates

vulnerable coaxial cable feedpoint sections - providing a weatherproof,

low-loss, high power balanced connection to all bands for optimum

antenna pattern control. This revolutionary Rigid Feeder attaches directly to the outside of the full-

size 1-1/4" fiberglass Center Post. It is no longer necessary to drill or slice up a center post -

weakening it - to attach or protect older coaxial cable feeders with homebrew or terminal strip

connections. The use of this balanced feeder system maintains optimal pattern, where other

antennas have compromised unbalanced coaxial feeders with potentially distorted patterns.

The integral center insulators with the unique serpentine wire grip assure long, reliable

performance. The pre-assembled and tested Five Band Stainless Steel/PTFE Rigid Feeder System is

also ideal for retrofitting to other, older hexagonal beam designs using the DX Engineering wire

element dimensions - or with your own hex antenna with appropriate testing and modifications.

At the center of the new HEXXAGONAL BEAM Mark 2 is the exclusive DX Engineering cast

aluminum HEXX Hub (US Patent No. D605,184).Specially designed and mechanically superior to

available home-made base plate designs, the HEXX Hub has integral V-saddles and Stainless Steel

V-Bolt hardware to firmly attach the fiberglass

spreaders in proper alignment without drilling or

crushing. The upper and lower mast mounts are

integrally cast into the hub, eliminating the need to find

separate mounting flanges, reducing assembly time,

improving mast alignment and providing a far stronger,

heavy duty attachment for the mast. For the rest of the

antenna frame, high quality stainless steel element

clamps rigidly hold the telescoping fiberglass sections at

the correct lengths without drilling holes. Exclusive DX

Engineering stainless steel element clamps with studs

provide secure attachment points for the Five Band Stainless Steel/PTFE Rigid Feeder System (US

Patent No. 8,669,91, US Patent No. D624,060, British Patent No. GB248003 B) without drilling. The unique Floating

Element Wire Guides allow independent movement of the radiating wire elements and flexible

fiberglass spreaders in the wind without creating breaking stresses. These special Wire Guides are

attached to the spreaders without drilling, for a stronger, longer lasting antenna.

The DX Engineering HEXXAGONAL BEAM Mark 2 is a directional beam antenna made with

fiberglass spreaders and wire elements that looks like a very large inverted umbrella frame. Even at

22 feet wide and approximately 5 feet tall, it has a smaller turning radius than a two element 20

meter Yagi, and offers several enhanced operating characteristics. It may be mounted at the top of a

rotatable mast or directly into a light to medium duty rotator. This antenna is fed at the top of the

center post with a single 50Ωfeedline. This top fed feedline arrangement has been tested and

proven to function better than a bottom feedpoint connection. The Mark 2 purposely excludes

poorly functioning 6 meter elements that other hex beam manufacturers have added, to preserve the

broadband hex beam antenna’s 10 and 12 meter performance.

HEXXAGONAL BEAM Features

The DX Engineering HEXXAGONAL BEAM Mark 2 design has a number of important

advantages over a Yagi:

●Small turning radius -the HEXXAGONAL BEAM Mark 2 has a turning radius of 11'

●Gain - 5 dBi (3 dBd), depending on band - similar to 2 element Yagi, far exceeding

performance of multi-band mini-beams

●Front-to-Back - >20 dB, depending on band

●Balanced in the wind - Hexxagonal symmetry reduces torque on the rotor

●Light weight - fully assembled - less than 25 pounds

●Wind load - less than 5 square feet

●Can be turned with a light duty rotator - no need to spend big dollars

●Performs well at low heights - good results at 20 to 30 feet above ground

●Five Band gain and front-to-back - can meet or exceeds other small antennas

●Handles full legal limit power – no power restriction as on competing antennas

●Low Noise results - approaches performance of closed loop antennas

●Full length pre-cut elements - no lossy coils or traps

●Five-Band Stainless Steel/PTFE Rigid Feeder System (US Patent No. 8,669,91, US Patent No.

D624,060, British Patent No. GB248003 B)

●Requires no matching network - direct single 50 ohm coax feed

●New, easier and faster assembly - fewer parts to speed completion of the antenna project

HEXXAGONAL BEAM Kits

DXE-HEXX-5TAP-2 - The DX Engineering HEXX BEAM Mark 2 - Five-Band Total Antenna

Package consists of these four kits:

DXE-HEXX-1HBP HEXXAGONAL BEAM Hub package (US Patent No. D605,184)

DXE-HEXX-1SCP-2 HEXXAGONAL BEAM Spreader & Center Post package

DXE-HEXX-5FFP HEXXAGONAL BEAM 5-Band Stainless Steel/PTFE Rigid

Feeder System (US Patent No. 8,669,91, US Patent No. D624,060, British Patent No.

GB248003 B)

DXE-HEXX-5WRP-2 HEXXAGONAL BEAM 5-band Wire Element & Wire Guide

package

DXE-HEXX-1TAP-2 - The DX Engineering HEXX BEAM 1-Band Total Antenna Package

consists of these three kits:

DXE-HEXX-1HBP HEXXAGONAL BEAM Hub package (US Patent No. D605,184)

DXE-HEXX-1SCP-2 HEXXAGONAL BEAM Spreader & Center Post package

DXE-HEXX-1WRP-2 HEXXAGONAL BEAM 1-band Wire Element & Wire Guide

package

Parts Lists

DXE-HEXX-1HBP - HEXX HUB

Qty

Description

Cast Aluminum Hexxagonal Hub (US Patent No. D605,184)

1.5" short Stainless Steel V-Bolt

1/4-20 Stainless Steel Hardware Kit for V-Bolts

1/4-20 Stainless Steel Hex Head Bolt 1.5" long

1/4-20 Stainless Steel Hex Nut

1/4-20 Stainless Steel Flat Washer

1/4-20 Stainless Steel Split Washer

DXE-HEXX-1SCP-2 - HEXXAGONAL BEAM Spreader & Center Post

Qty

Description

Fiberglass Tube, Gray, 1.25" OD x 58" Long, .120 Wall (for the Center Post)

Fiberglass Tube, Gray, 1.00" OD x 58" Long, .120 Wall with slits

Fiberglass Tube, Gray, 0.75" OD x 43" Long, .120 Wall with slits

Fiberglass Tube, Gray, 0.75" OD x 5" Long, .120 Wall

Fiberglass Tube, Gray, 0.50" OD x 48" Long, .120 Wall

Tube, Antenna, Aluminum, 1.375" OD x 14" Long, Slit one end (for the Center Post)

DXE-ECL-1000 - Element Clamp for 1" and 1.125" OD tubing

DXE-ECL-0875 - Element Clamp for .75" and smaller OD tubing

DXE-ECL-1500 - Element Clamp for 1.375" and 1.5" OD tubing

Vinyl End Cap, Black

STI-DBR-94-100 - Dacron/Polyester Rope, 100 Foot Roll

Spreader Rope Connection Assembly w/cushioned P-Clamps mounted on Stainless Steel Band Clamps

Center Post Rope Connection Assembly - includes the following parts:

DXE-MPH-1 Multi-Purpose Hub 1.5"

1/4-20 x 1.25" Stainless Steel Hex Head Bolt

1/4-20 Stainless Steel Nut

1/4-20 Stainless Steel Square Nut

1/4" Stainless Steel Split Washer

1/4" Stainless Steel Flat Washer, 18-8

DXE-HEXX-5FFP - HEXXAGONAL BEAM 5-Band Stainless Steel/PTFE

Rigid Feeder System (US Patent No. 8,669,91, US Patent No. D624,060, British Patent No. GB248003 B)

Qty

Description

Five Band Stainless Steel/PTFE Rigid Feeder (US & British Patented)

Coaxial cable feedpoint pigtail

UHF Female-to-Female Adapter (dual SO-239 type)

DXE-HEXX-5WRP - HEXXAGONAL BEAM 5-band Wire & Wire Guide

Qty

Description

20/17/15/12/10 Meter Wire Driven Element Sets - #14 Copper Stranded Wire with Black PVC

Insulation with Ring Terminals attached and Wire Guides installed

20/17/15/12/10 Meter Wire Reflector Element Sets - #14 Copper Stranded Wire with Black PVC

Insulation with Ring Terminals attached and Wire Guides installed

#10 hole, 16-14 Wire Gauge Ring Terminal (Spares for various bands and/or adjustment in element

lengths)

Floating Wire Guides for 1/2" Spreader

Floating Wire Guides for 3/4" Spreader

DXE-HEXX-1WRP HEXXAGONAL BEAM 1-band Wire & Wire Guide

Qty

Description

20 Meter Wire Driven Element - #14 Copper Stranded Wire with Black PVC Insulation with Ring

Terminals attached and Wire Guides installed

20 Meter Wire Reflector Element - #14 Copper Stranded Wire with Black PVC Insulation with Ring

Terminals attached and Wire Guides installed

#10 hole, 16-14 Wire Gauge Ring Terminal

(Spares for various bands and/or adjustment in element lengths)

UHF Female-to-Female Adapter (dual SO-239 style)

Coax Wire Assembly, 10" with PL-259 and Ring Terminals

Single Band Feeder Insulator Clamp Assembly

Floating Wire Guides for 3/4" Spreader.

Parts required but not supplied

JTL-12555 - Jet-Lube SS-30 Pure Copper Anti-Seize

The above products are limited to domestic UPS Ground shipping only

Note: Jet-Lube SS-30 or Never Seez®should be used to prevent

galling (seizing) of stainless steel hardware.

TES-2155 - 3M Temflex™ 2155 Rubber Splicing Tape

TES-06132 - Scotch®Super 33+ Tape

The DXE-FCC050-H05-A - Feedline Current Choke and the DXE-BMB-1P Balun Mounting

Kit for a .750 in. thru 1.50 in. Boom - are suggested options and this manual describes their

installation.

Tools Required

1/4", 5/16", 3/8" and 7/16" Deep Well Nut Drivers and/or Open End Wrenches

Tape Measure, 50 ft

Step Ladder, 6 ft. Use proper precautions for step ladder safety

Screwdriver

Pliers

Scissors

Lighter or flame source (to slightly melt the cut rope ends to keep them from fraying)

Use proper safety precautions for a lighter or flame producing item

Marking Pen or Pencil

Three foot Tripod and three foot mast pipe - To hold the antenna while under construction.

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.

HEXXAGONAL BEAM Construction

This manual for the DX Engineering HEXXAGONAL BEAM Mark 2 is written in sections for

the various assemblies. Each section of assembly instructions is titled with the HEXXAGONAL

BEAM Mark 2 kit name and model number for easy reference.

The typical build sequence is:

1. Assemble the patented HEXX HUB

2. Center Post assembly

3. 5-Band Stainless Steel/PTFE Rigid Feeder System Installation

4. Install the Center Post Rope Hub

5. Installation of the optional DXE-FCC050-H05-A Feedline Current Choke

6. Spreader assembly

7. Wire Element installation

8. Installation on a Mast and Rotator

9. SWR Testing

An outdoor area of about a minimum 30 foot square is required for assembly of this antenna.

There are parts made from fiberglass in this kit. Take normal precautions when handling any

fiberglass material. There may be fiberglass dust, slivers or particles present when the fiberglass

parts were manufactured. The use of typical fiberglass handling safety gear (gloves, dust mask, eye

shield, clothing, etc.) when handling and working with fiberglass is recommended. Use a damp rag

to wipe the parts. Do not use compressed air to clean fiberglass parts. Measures can be taken to

reduce exposure after a person has come in contact with fiberglass. Eyes should be flushed with

water and any area of exposed skin should be washed with soap and warm water to remove fibers.

Clothing worn while working with fiberglass should be removed and washed separately from other

clothing. The washing machine should be rinsed thoroughly after the exposed clothing has been

washed. Check with your local or state safety and/or environmental agencies for more detailed

precautions.

The use of a three foot tripod and a three foot mast pipe makes construction of the antenna easier

(see Figure 1).

Figure 1 - Using a temporary tripod and mast for

assembly at ground level

Sufficient space is required for the installation of the antenna on your

mast or tower.

The finished antenna is approximately 22 feet in diameter.

Hexxagonal Hub Assembly Instructions

DXE-HEXX-1HBP - HEXXAGONAL HUB (US Patent No. D605,184) Parts List

Qty

Description

Cast Aluminum Hexxagonal Hub (US Patent No. D605,184)

1.5" short Stainless Steel V-Bolt

1/4-20 Stainless Steel Hardware Kit for V-Bolts

1/4-20 Stainless Steel Hex Head Bolt, 1.5" long

1/4-20 Stainless Steel Hex Nut

1/4-20 Stainless Steel Flat Washer

1/4-20 Stainless Steel Split Washer

Insert the twelve Stainless Steel V-Bolts over the cast V-Saddles as shown in Figure 2.

Figure 2

Jet-Lube SS-30 Anti-Seize or Never Seez®should be used to

prevent galling (seizing) of stainless steel hardware.

Install a flat washer, a split washer and a 1/4-20 nut on each V-Bolt leg, snug the nuts partially.

Install six 1/4 -20 bolts, six flat washers, six split washers and six nuts, into the top and bottom cast-

in flanges of the hub, as shown in Figure 3. These will be adjusted to fit the center post for the

HEXXAGONAL BEAM.

Figure 3

The DX Engineering Hexxagonal Hub is now ready for use as the solid foundation for your

HEXXAGONAL BEAM Mark 2.

Working with Fiberglass

There are parts made from fiberglass in this kit. Take normal precautions when handling any fiberglass

material. There may be fiberglass dust, slivers or particles present when the fiberglass parts were

manufactured. The use of typical fiberglass handling safety gear (gloves, dust mask, eye shield,

clothing, etc.) when handling and working with fiberglass is recommended. Use a damp rag to wipe

the parts. Do not use compressed air to clean fiberglass parts. Measures can be taken to reduce

exposure after a person has come in contact with fiberglass. Eyes should be flushed with water and any

area of exposed skin should be washed with soap and warm water to remove fibers. Clothing worn

while working with fiberglass should be removed and washed separately from other clothing. The

washing machine should be rinsed thoroughly after the exposed clothing has been washed. Check with

your local or state safety and/or environmental agencies for more detailed precautions.

Indice

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