DX Engineering DXE-LLSP Instructions manual

Ladder Line

Surge Protector

DXE-LLSP

DXE-LLSP-INS Revision 0

© DX Engineering 2019

1200 Southeast Ave. - Tallmadge, OH 44278 USA

Phone: [phone] ∙ Tech Support and International: [phone]

Fax: [phone] ∙ E-mail: [e-mail]

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Introduction

For many years, hams have asked for a surge protector for use with ladder line fed antennas.
Decades ago a spark plugs or arc gaps were used for shunting surges to ground. Now available from
DX Engineering is a modern approach to providing surge protection for ladder line fed antennas.
The DXE-LLSP uses capacitors, resistor and gas discharge tubes on each leg of the ladder line to
offer surge protection capabilities. The DXE-LLSP Ladder Line Surge Protector will sustain
multiple minor surges. As with any surge protector, there is no guarantee that a direct hit from
lightning will be stopped.

Features

 Works with 450 ohm or 300 ohm Ladder Line
 Internal Gas Discharge Tubes, Capacitors and Resistors
 Can withstand multiple minor surges and shunts them to ground
 Standard size NEMA enclosure
 Weep holes for allowing and build up of internal moisture to drain out

WARNING!

INSTALLATION OF ANY ANTENNA NEAR POWER LINES IS DANGEROUS

Warning: Do not locate near overhead power lines or other electric light or power circuits, or

where it can come into contact with such circuits. When installing take extreme care not to come
into contact with such circuits, because they may cause serious injury or death.

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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Installation

Using customer
supplied Ring
Terminals, connect
the user supplied
Ladder Line and
Ground Wire to the
connections on the
Ladder Line Surge
Protector. It is
suggested the Ring
Terminals are
soldered to the ladder
line and ground wire.

TX connections go to
the transmitter/ tuner
output or balun. ANT
connections go to the
antenna input. GND connection goes to ground.

When mounting the Ladder Line Surge Protector, ensure the box is straight and the weep holes, that
are drilled in the lower front edge, are downward to allow any moisture build up to properly drain.

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NOTE: It is recommended that JTL-12502 - Jet-Lube™ SS-30 be used on all stainless steel
hardware threads to prevent galling and to ensure proper torque.

Maintenance

Periodically check the weep holes to ensure they are open. Clean out any dirt, dust, bugs as
required.

A repair parts kit is available if your Ladder Line Surge protector is damaged due to a very strong
surge. The repair parts kit is part number DXE-LLSP-RP.

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:

[e-mail]

For the 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 2019

DX Engineering®, DXE®, DX Engineering, Inc.®, Hot Rodz®, Maxi-Core®, DX Engineering THUNDERBOLT®, DX
Engineering Yagi Mechanical®, EZ-BUILD®, TELREX®, Gorilla Grip® Stainless Steel Boom Clamps, Butternut®,
SkyHawk™, SkyLark™, SecureMount™, OMNI-TILT™, RF-PRO-1B®, AFHD-4® are trademarks of PDS Electronics,
Inc. No license to use or reproduce any of these trademarks or other trademarks is given or implied. All other brands
and product names are the trademarks of their respective owners.

Specifications subject to change without notice.

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