DX Engineering DXE-TW2010 User manual

TW Antennas
Mono and Multi-Band
Vertical Dipole Antenna Systems
DXE-TW Series
DXE-TW-SERIES-INS Revision 1
© DX Engineering 2018
1200 Southeast Ave. - Tallmadge, OH 44278 USA
Phone: [phone] ∙ Tech Support and International: [phone]
Fax: [phone] ∙ E-mail: [email protected]

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Introduction
The DX Engineering TW Antenna systems are designed with 6063 corrosion-resistant aluminum
tubing, tough fiberglass, easy to use assembly parts and stainless steel hardware. These antennas are
very durable and attractive with their black powder coating for added stealth in an HOA or portable
environment.
The TW antenna is an omni-directional center fed vertical dipole with a very low radiation take-off
angle (approximately 27 degrees above the horizon), allowing for very long skip using low power
on 20, 17, 15, 12 and 10 meters.
Systems include Remote or Manual switching Multi-Band operations covering 20, 17, 15, 12, and
10 meters or Mono-Band systems for 80, 60, 40 or 30 meters. You can also use one of the multi-
band systems and enhance your operating capabilities by adding the mono-band components.
There are multiple packaged combinations as well as individual parts, available for customizing the
best system for your specific requirements.
The TW antenna system is only 8-1/4 feet tall and 5 feet wide and can be set up easily in practically
any location by one person. No more trying to string up wires or getting tangled up in trees for
portable operations. You supply the coax and your own powered transceiver. It's perfect for portable
operations, anywhere and anytime.
For backpacking and general camping and travel a custom travel/storage bag holds all of the
antenna components for easy transportation or storage is also available.
For portable use, the lightweight Quadrastand lets you set up your DX Engineering HF Portable TW
Antenna wherever you happen to be. Think about special operating events like the Scouts Jamboree
On-The-Air (JOTA), Field Day, SOTA (Summits On-The-Air), Ohio State Parks On The Air
(OSPOTA) and more.
One person can easily and quickly set up the antenna system allowing you to devote your time to
being on the air and having fun making contacts.
Features
Two Multi-Band models and 4 Mono-Band models
Tough 6063 corrosion-resistant aluminum antenna components
Black powder coat finish for stealthy operation (Quadrastand has gray legs)
Power Handling: 1200 W SSB, 800 W CW, 500 W RTTY, 375 W AM
Band Width 200 kHz 20 m, Entire Band on 17, 15 and 12m, 1210 kHz on 10 m*
Typical Minimum SWR 1.1:1 on 20, 17, 15, 12 and 10 m*
Mono-Band versions available for 80, 60, 30 and 40 meters
Antenna is only 8-1/4 feet tall by 5 feet wide
Permanent Ground Mount or Portable Quadrastand
Light, easy to transport - approximately 10 pounds
* Test conditions: 100 feet of RG8/U coax, 100 W output power, antenna mounted approximately 24” above
ground with no external objects, metallic or otherwise, within 25 foot radius of the antenna.

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Part Numbers and Package Combinations Available
Part Number
Description
DXE-TW2010
Remote Multiband Center Section, 5 Band, 20, 17, 15, 12, 10 meters
DXE-TW2010L
Manual Multiband Center Section, 5-Band, 20, 17, 15, 12, 10 meters
DXE-TW8080
80 meter Mono-band Center Section
DXE-TW6060
60 meter Mono-band Center Section
DXE-TW4040
40 meter Mono-band Center Section
DXE-TW3030
30 meter Mono-band Center Section
DXE-TW-BAS-BTM
Antenna Bottom Section
DXE-TW-BAS-TOP
Antenna Top Section
DXE-TW-AQ
Quadrastand
DXE-TW-PMP
Permanent Mounting Pole
DXE-TW-CCX
Remote Control Extension Cable
DXE-TW-DXBAG
Custom TW Antenna Travel/Storage Bag
DXE-8XDX075
75 foot RG8X Coaxial Cable assembly
DXE-TW-COVER
Custom Cover for Single Center Sections
DXE-TW2010
DXE-TW2010L
DXE-TW8080
DXE-TW6060
DXE-TW4040
DXE-TW3030
DXE-TW-AQ
DXE-TW-BAS-BTM
DXE-TW-BAS-TOP
DXE-TW-CCX
DXE-TW-DXBAG
DXE-TW-PMP
DXE-8XDX-075
DXE-TW-COVER
Package Part Number
Package Name
DXE-TW-2010-P
5-Band Adventurer
X
X
X
X
X
o
o
o
o
DXE-TW-2010L-P
5-Band Explorer
X
X
X
X
o
X
o
o
o
DXE-TW-2010P-P
5-Band Globetrotter
X
o
X
X
X
o
X
o
o
DXE-TW-8080-P
80 Meter Solo Explorer
X
X
X
X
o
o
o
o
DXE-TW-6060-P
60 Meter Solo Explorer
X
X
X
X
o
o
o
o
o
DXE-TW-4040-P
40 Meter Solo Explorer
X
X
X
X
o
o
o
o
o
DXE-TW-3030-P
30 Meter Solo Explorer
X
X
X
X
o
o
o
o
o
X = Included o = Optional

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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.
NOTE: Some older versions of the TW Antennas are not compatible with current production
parts. The original manufacturer of TW Antennas had changed the design more than once
and newer parts will not fit some older models. Call DX Engineering to verify if your old TW
Antenna will be compatible with currently produced parts and assemblies.
Additional Material Needed/Suggested but not Supplied:
Coaxial Cable - Minimum of 65 feet in length. Suggested coaxial cable is the DX
Engineering DXE-8XDX075 - RG-8X, 16 AWG Copper, Type II-A Non-Contaminating
PVC Jacket, with PL-259s on each end.
Guy Rope and Anchors –should be used if the antenna is subjected to winds or blowing
snow conditions.
Tools Required
Phillips Screwdriver - to open the center sections for fine tuning.
Although the TW antennas are tuned at the factory, you may need to fine tune your antenna for
optimum efficiency and operation. The Rig Expert line of Antenna Analyzers will facilitate the fine
tuning of the TW Antenna:
REU-AA-230 Zoom - https://www.dxengineering.com/parts/reu-aa-230zoom
C6ADX Portable

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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 other long tools, keep
them at least 10 feet away from all overhead lines - including any lines from the power pole to your
home.
For operational performance, the TW antenna should be a minimum of 25 feet from any objects,
metallic or otherwise including power lines.
Installation
General Installation Information
Note: The TW Antenna center sections are not weatherproof
and should not be subjected to rain, snow, dust storms, etc. If
you intend to use the antenna outdoors for extended
periods or when subjected to harsh weather, we suggest
you protect the center section. The optional DXE-TW-
COVER is custom made to fit over the center section of the
TW Antenna. This cover has a Velcro®with a rubber seal
adjustable top band to make a snug water tight seal and a flap
on the rear to allow the coaxial cable and control line cable to
exit without having water enter the center section. The DXE-TW-COVER fits all of the center
sections except for the 80 center meter section. To protect the 80 meter center section, which has
two matching boxes, use a plastic bag and tape to seal it from the harsh environment.
All of the models available have similar parts and the installation of each model is almost identical.
The Top and Bottom parts of the antenna are the same for all models. The center section is different
Center Section Cover Cover Installed

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depending on the model (Multi-Band or Mono-Band) and the support at the bottom of the antenna is
either the permanent mount or the Quadrastand.
The following installation instructions are for the 5-Band Explorer system (DXE-TW-2010-P)
which includes the antenna, remote band switching center section, control box, control cable and the
Quadrastand.
An optional travel/storage bag is available from DX Engineering that will hold all of the antenna
components.
Site Selection
Select a mounting location clear from power lines and structures by a minimum of 25 feet.
Consider overhead power lines, utility cables and wires. The TW Antenna should be used well
away from local noise sources or other metallic objects which can re-radiate noise and affect the
tuning, radiation pattern and SWR. For operational performance, the antenna should be a minimum
of 25 feet from any objects, metallic or otherwise.
Support Assembly
The support used depends on your
installation and preference: The
Quadrastand (DXE-TW-AQ) is a four
leg mini stand that is easy to assemble
and will hold the antenna up in the proper
orientation. The Permanent Mounting
Assembly (DXE-TW-PMP) may be
used if you are mounting the antenna in a
location that will be permanent.
Quadrastand Assembly
Slip the four legs into the center section
of the Quadrastand (DXE-TW-AQ) as
shown.
Once in place, slip the holding bracket
into the bottom of the center section as
shown and hand tighten the wing nut.
The holding bracket keeps the four legs
from falling out of the center section
when you pick it up.

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Permanent Mounting Assembly
The Permanent Mounting Assembly (DXE-TW-PMP) consists of insulator rod attached to an
aluminum tube using stainless steel hardware. The assembly can be installed with or without the use
of concrete. Though concrete will provide a more secure, permanent
base for your antenna, it will be difficult to remove or re-position later.
The assembly should be inserted about 24” into the ground, exposing
24”of the assembly above ground.
It is suggested that the antenna be tried in an area using the permanent
mounting assembly in a hole in the ground before concreting, in case
the antenna needs to be moved later. Once you are sure of the location
for the antenna, the Permanent Mounting Assembly can be concreted
into place, if desired.
Warning: The fiberglass insulating rod is not hammer-proof. Do not
pound the Permanent Mounting Assembly into the ground like a
stake. Permanent damage to the fiberglass insulating rod could occur.
If it is necessary to drive the assembly into the ground, first remove the
fiberglass insulating rod using a 5/32” Allen wrench and a 7/16” socket.
Drive the aluminum permanent mounting tube into the ground using a
rubber mallet. Alternatively, a conventional hammer can be used if a
wooden board is laid over the aluminum mounting tube before striking.
Antenna Bottom Section
Unfold the two arms on the Antenna Bottom Section
(DXE-TW-BAS-BTM) until they are perpendicular to the
center tube as shown. Once the arms are in place, hand-
tighten the knobs to keep them in place.
Insert the bottom section into the Quadrastand as shown.
Once in place, hand-tighten the knobs in place to hold the
bottom section securely. (This example uses the
Quadrastand).

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Antenna Center Section
Insert the Center Section into the bottom of the antenna
as shown. Once in place, hand-tighten the knobs in
place to hold the bottom section securely. (This photo
shows the manual tune center section).
Antenna Top Section Unfold the two arms on the Antenna Top Section
(DXE-TW-BAS-TOP) until they are perpendicular
to the center tube as shown. Once the arms are in
place, hand-tighten the knobs to keep them in place.
Insert the Antenna Top Section into the Center
Section as shown. Once in place, hand-tighten the
knobs in place to hold the top section securely.

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Control Cable and Control Console
Attach the 65 foot control cable (DXE-TW-CCX) to the rear of the Remote Multi-Band Center
Section as shown. Align the connector and push it on and tighten the collar clockwise. (Reverse it to
remove the cable.) Run the control cable (and the coaxial cable) at a 45 degree angle from the rear
of the antenna as shown. IMPORTANT: Run the coaxial cable (and the control Cable) at a 45
degree angle from the rear of the antenna as shown. If the cable is not long enough for your
installation, you can obtain an optional second control cable to make the control run 130 feet long.
Connect the Control Cable to the rear of the Control Console. Align the connector and screw on the
collar in a clockwise direction. Reverse to remove. Without the cable connected, the antenna will
only work on 20 meters.
Connect +13.6 Vdc, 200 ma minimum well filtered DC to the rear of the Control Console as shown
(Stripe or White Dashed line is Positive, Black is Negative) using the included 2.1 mm power cord.
The Remote Control Console front panel has one six
position rotary switch and five red LEDs.
Switch position one is OFF, the next clockwise
position is ON and selects 20 meters (LED Turns ON).
Continue turning clockwise and you will see which
band is selected by which LED is on. Turn completely
counter clockwise to turn power off.

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Coaxial Cable Connection
Connect the suggested 75 feet of coaxial cable (DXE-8XDX075) to the SO-239 on the rear of the
Remote Multi-Band Center Section as
shown. Run the coaxial cable (and the
control cable) at a 45 degree angle from
the rear of the antenna as shown. Run the
coaxial cable (and the control Cable) at
a 45 degree angle from the rear of the
antenna as shown.
Connect the coaxial cable to your
transceiver RF output. Transceivers that
have an internal tuner should be able to
handle any slight mismatch with no
problem.
Manual Center Section Band Switching
When using the Manual Tune Center Section (DXE-TW-
2010L) select the band of operation by inserting the two
jumpers in their appropriate holes (one in the top band
selection and one in the bottom band selection). Make sure
the power is OFF and there is no RF being transmitted!
The Jumpers have banana plugs on the ends and plug into
the printer circuit board. Make sure they are pushed in all the
way. There are two jumpers - one for the top part of the
antenna and one for the bottom part of the antenna. Both of
the jumpers must be plugged in and must be on the same
band.
Fine Tuning
Even though the antenna center sections (all models) are factory tuned, you may find that additional
tuning may be required for your particular installation. Some minor adjustments may be necessary to
tune the antenna to the desired center frequency for each band. Check the tuning of the antenna using an
antenna analyzer before performing the tuning process. Tuning is accomplished by varying the
distance between the turns on the coils internal to the center section.
A quality antenna analyzer should be used, not your transceiver’s SWR meter. Disconnect the
coaxial cable from the transceiver.

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All of the coils on the top half of the switching array are series connected. A relay shorts the signal
to the metal structure, bypassing all of the coils above a given band (the bottom half of the
switching array is effectively a mirror image of the top half). The tuning for each band depends on
the tuning for the previous band. Therefore, tuning must start at the 10 m coil pair and progress in
order up to the 20 m band.
The tuning process requires Voltage Standing Wave Ratio (VSWR) measurement. These
measurements can be accomplished using most any antenna analyzer. However, these devices
typically generate a very small signal (less than 0.2 W), and may show higher than expected VSWR
readings. A reading of 1.3:1 at the tuned frequency is typical at this low power. The VSWR
readings should decrease once the antenna is used with 5 W of power or more. The VSWR reading
on your transceiver will likely show a lower VSWR than a low-power antenna analyzer.
Make sure that the coax used for the tuning process is at least 65 feet long, and that both the coax
and control cable are installed at a 45 degree angle as described earlier in this manual.
To tune each band, each of two coils in the coil pair for that band must be
spread or compressed (see photographs below). By spreading each coil in the
coil pair, the tuned frequency for that band will increase. Likewise,
compressing the coils in a coil pair will decrease the band’s tuned frequency.
You should try to spread or compress each of the two coils in a coil pair by
the same amount. Warning:
1) Preparation. (Photos shown show the interior of the DXE-TW2010)To
begin the tuning process, remove the center section switching array cover,
and connect the control and coax cables to the switching array box, as
described earlier in this manual. The coax you use for the tuning process
should ideally be the coax you plan to use for the antenna during normal use.
Connect the coax cable to the device you wish to use to measure VSWR, and
connect the control cable to your controller.
2) Start with 10 meters. Switch your controller to the 10 m band and
determine to
what frequency
the antenna is
best tuned. If
you wish to
increase the
tuned frequency,
spread open each
of the two coils
labeled “10 m” on the switching array
circuit board, as shown in the photos.
3) Tune next band. Once the 10 m
band is tuned, switch your controller to
the 12m band and tune the 12m band in a similar fashion as you tuned the 10 m band in step 2.

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4) Repeat for remaining bands. Repeat the tuning process for the 15 m, 17 m, and 20 m bands, in
that order.
For the manual tune center section model, the testing is the same as described above. The only
difference is that the two jumpers for the specific band must be installed. For the mono-band
center sections there is only one band to adjust. The number of coils will vary depending on
the model.
Guy Rope and Anchor Installation
In cases where the antenna may be subject to winds or conditions that may cause the antenna to be
blown down, guying is suggested. For temporary installations if the conditions are not harsh, you
may find that putting rocks or weights (example: gallon jugs with water) on the Quadrastand legs
will provide the security needed. If conditions are a bit harsher, you may want to use rope and
screw-in earth anchors. Screw-in earth anchors and sufficient antenna rope are available from DX
Engineering to allow guying of the antenna.
Technical Support
If you have questions about this product, or if you experience difficulties during the installation,
contact DX Engineering at [phone]. You can also e-mail us at:
[email protected]
For best service, please take a few minutes to review this manual before you call.
Warranty
All products manufactured by DX Engineering are warranted to be free from defects in material and workmanship for a period of one (1) year from
date of shipment. DX Engineering’s sole obligation under these warranties shall be to issue credit, repair or replace any item or part thereof which is
proved to be other than as warranted; no allowance shall be made for any labor charges of Buyer for replacement of parts, adjustment or repairs, or
any other work, unless such charges are authorized in advance by DX Engineering. If DX Engineering’s products are claimed to be defective in
material or workmanship, DX Engineering shall, upon prompt notice thereof, issue shipping instructions for return to DX Engineering (transportation-
charges prepaid by Buyer). Every such claim for breach of these warranties shall be deemed to be waived by Buyer unless made in writing. The above
warranties shall not extend to any products or parts thereof which have been subjected to any misuse or neglect, damaged by accident, rendered
defective by reason of improper installation, damaged from severe weather including floods, or abnormal environmental conditions such as prolonged
exposure to corrosives or power surges, or by the performance of repairs or alterations outside of our plant, and shall not apply to any goods or parts
thereof furnished by Buyer or acquired from others at Buyer’s specifications. In addition, DX Engineering’s warranties do not extend to other
equipment and parts manufactured by others except to the extent of the original manufacturer’s warranty to DX Engineering. The obligations under
the foregoing warranties are limited to the precise terms thereof. These warranties provide exclusive remedies, expressly in lieu of all other remedies
including claims for special or consequential damages. SELLER NEITHER MAKES NOR ASSUMES ANY OTHER WARRANTY
WHATSOEVER, WHETHER EXPRESS, STATUTORY, OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY AND
FITNESS, AND NO PERSON IS AUTHORIZED TO ASSUME FOR DX ENGINEERING ANY OBLIGATION OR LIABILITY NOT STRICTLY
IN ACCORDANCE WITH THE FOREGOING.
©DX Engineering 2018
DX Engineering®, DXE®, DX Engineering, Inc.®, Hot Rodz®, Maxi-Core®, DX Engineering THUNDERBOLT®, DX Engineering Yagi Mechanical®,
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Specifications subject to change without notice.