OWL Trek Singlemode OTDRs
But!  If you prefer actual Launch Cables (recommended), Click Here to see how to order
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OWLTrek Singlemode OTDR's

OwlTrek Singlemode OTDR Application
OwlTrek Singlemode OTDR
Locate breaks and other faults in singlemode fibers within six feet up to 80 miles away! **
Made in America!

Live mode is an advanced feature normally found in high-end OTDRs.
Live mode continuously shoots OTDR traces every few seconds,
allowing users to monitor changes in the optical fiber in real-time.

In addition, when the OWLTrek is attached to a PC, OWLView software
includes a Live Viewer mode that takes the OTDR trace and expands it
onto the PC display for easier viewing.
OWL Zone Boxes
Launch Cables/Zone Boxes

This ZoneBox is 1100 meters,
Singlemode w/SC/UPC Adapters.
(Patch Cables not included.)
Made In USA.

ZoneBox is 450 meters, 62.5/125
Multimode w/SC/UPC Adapters.
(Patch Cables not included.)
Made In USA.

ZoneBox is 450 meters, 50/125
Multimode w/SC/UPC Adapters.
(Patch Cables not included.)
Made In USA.
OWLTrek Launch Cables
Note:  * Dynamic Range / Distance: OWLTrek singlemode OTDRs are capable of finding breaks in singlemode optical fibers up to 80 miles to
within +/- 6 feet. Additional splices and other loss producing events will limit end distance estimates. This is true for all OTDRs. However,
passive singlemode Telco links are almost always less than 12 miles long. At this distance, OWLTrek OTDRs have break finding capability of
about +/- 1 meter! In fact, increased dynamic range is actually a disadvantage in almost all cases because of the increased OTDR cost (usually
thousands of dollars more).
"Need a little help with some of the functions and buttons on your OwlTrek OTDR?  Get some popcorn AND
your OwlTrek OTDR, a chair, sit back and watch, look and listen!  Now go out and do the right thing!"
Doctor Fiber
This great video introduces OWLTrek Series OTDRs, explaining the key
features of this fantastic, US Made, device.
OWLTrek OTDR Introduction
OwlTrek Functions and Controls
Here we have a video that describes the functions and controls of the
OWLTrek OTDR functions and Controls
Introducing the OWL pulse suppressor box.  
One cannot effectively and efficiently use an OTDR without a Lauch Cable of a
Pulse Box.
OWLTrek Support Videos
OWL Zone Boxes
Setting OwlTrek OTDR Trace Parameters
Setting Trace Parameters with the OWLTrek OTDR
Demonstrates how to set trace parameters in the OWLTrek OTDR.
OwlTrek OTDR Trace Analysis
Trace Analysis Using the OWLTrek OTDR
Demonstrates the use of cursors on the trace screen of the OWLTrek OTDR,
and shows proper cursor placement for common types of events when
analyzing traces.
Working with Stored Traces in the OWLTrek OTDR
Demonstrates how to store, name, retrieve, and delete traces while using the
OWLTrek OTDR Miscellaneous Settings
Covers the various miscellaneous settings in the OWLTrek OTDR.
OwlTrek OTDR Maintenace
OWLTrek OTDR Maintenance
Covers maintenance and upkeep issues concerning the OWLTrek OTDR.
OwlTrek OTDR Live Mode
Demonstrates how to use the LIVE mode feature in OWLTrek OTDRs, as well as
extend LIVE mode onto OWLView software for easier trace viewing.
OwlTrek VFL Operation
OWLTrek OTDR -- VFL Operation
Demonstrates how to operate the visual fault locator (VFL) port in OWLTrek
series OTDRs.
OwlTrek OTDR Port Cleaning
OWLTrek OTDR Port Cleaning
Cleaning Optical Ports on OWL Fiber Optic Test Equipment
Optical Length Measurements
Methods of Measuring the Length of Optical Fibers
OTDR Saturation Inversion
Explains the issues surrounding the OWLTrek OTDR trace to appear "inverted",
and how to overcome reflective events that cause saturation inversion.
Product Overviews
Operation Guides
Firmware Upgrades
Note: Products ship with owner's manuals on USB flash drive (replacement fee: 35.00). Adobe Acrobat Reader (tm) is required to view these
Complete OwlTrek OTDR Product Overview
Introducing the OWL OWLTrek Hand-Held OTDR.

With an unbeatable combination of a small pocket-sized form factor,
a high-resolution color LCD display, and some of the lowest pricing in
the industry, the OWLTrek OTDR from OWL is the WISE choice for
cost-conscious buyers who only need to perform basic
troubleshooting or restoration tasks on multimode optical fiber
networks. All this from an OTDR that really is pocket-sized and fair
priced, yet having comparable features and specifications to other
OTDRs in its class.

Affordability. In a time when it is becoming increasingly difficult to
justify equipping an entire technical staff with high-end equipment,
companies are even more cost-conscious than before. These
companies outfit a majority of their installation/repair personnel with
OWLTrek OTDRs, and set aside a few high-end “expert” devices for
high-priority jobs.

FOT at 512-785-9024 for more information about this new and
exciting development in OTDR testing, and discover why OWL is the
wise choice in fiber test equipment!
OwlTrek OTDR
(quarter added to illustrate small hand-held size
of OTDR)
Made in

  •    Singlemode
  •    Output wavelength options: 1310 and 1550nm
  •    Dynamic range: 25 dB (1310nm) / 23 dB (1550nm)
  •    Event Dead Zone: 2 meters (typical)
  •    Attenuation Dead Zone: 7 meters (typical)
  •    User-selectable Pulse Width: 1, 2, 5, 10, 20, 50, 100, 200, 500, 1000 meters
  •    Distance Range: 128 km
  •    OTDR port: SC/UPC
  •    VFL port: 2.5mm universal
Automatic Event Location/Event Tables
Automatic event location is an advanced feature normally found only in expensive, high-end OTDRs. The OWLTrek OTDR now brings this
feature to the entry-level OTDR market.

The OWLTrek OTDR includes an event table showing the location, type, reflectance level, and loss of each event. Users can select an event
to view, and automatically zoom in on the event on the OTDR display.
Image enhanced for photographic effect
OwlTrek OTDR Trace Events
OwlTrek Zoom Options
Automatic Screen Rotation
The OWLTrek OTDR may be pocket-sized, but the large 2.8” high-resolution color LCD display can show even the longest traces with ease.
And, for greater viewing flexibility and trace detail, OWL has implemented state-of-the-art MEMS technology which “flips” the high-
resolution color LCD display between portrait and landscape mode automatically. In landscape mode, a wider viewing area means greater
viewing detail when zooming in on events.
Integrated visual fault locator (VFL) port
OWLView for OTDR Software
OWLView software allows the user to download stored traces from the
OWLTrek OTDR to a PC.


  •    Event analysis
  •    Data storage using Telcordia GR-196 2.0 file format
  •    Printed reports for hard-copy record keeping
  •    Help menu with links to manuals, quick reference guides, and videos
OwlView OTDR Software
OwlView OTDR Trace
Note: **- factors that limit OTDR distance range include splices, interconnections, fiber quality, fiber attenuation, and other loss
inducing events such as micro-bends and macro-bends


  •    OWLTrek Singlemode OTDR
  •    Integrated Visual Fault Locator (VFL) port
  •    Hard-shell carrying case
  •    USB download cable
  •    Battery charger (US only)
  •    USB flash drive with OWLView trace software, USB driver, product manuals, and product videos

Pulse Suppressors, commonly called Launch Cables, are used to occupy OTDR "Dead Zones" which enable accurate loss
measurements on near-end and far-end connections of the fiber under test.  They basically allow the high power launch pulse a "settling
down" time prior to entering the fiber under test. Besides - you would not want to plug a bad connector into the top of your expensive
your OTDR then.  Results - SAME PROBLEM!

This compact suppressor/launch box/launch cable comes with your choice of connectors.  Pigtails will exit the unit for easy connection
to both OTDR and fiber under test.  When running an OTDR trace on multimode fiber the launch/receive cable should be at least 250
meters long.  When running a trace on singlemode fiber the launch cable should be at about 1k in length."

There is a 7-10 day lead time on this item.  Be sure to specify what connectors you require on each end.  Standard connectors are, ST,
FC, LC, and SC.  Give me a call at: 512-785-9024 or email me at: bob@fiberopticstools.com and let me help you.
from the desk of Peter Morcombe
Pioneer of Fiber Optics and Master FOA Instructor
When it comes to buying fiber optic test equipment for use in local
networks and LANs I prefer simple to complex.  Paying tens of
thousands of dollars for “Mighty Wurlitzers” can be problematic if the
equipment has to be returned for factory servicing.

Simple fiber optic test equipment is now so inexpensive one can afford
to buy redundant units to ensure that testing capability is maintained at
all times.    
Thus I am inclined to recommend simple test equipment such as OWL (Optical
WavelengthLaboratories) rather than complex solutions offered by Anritsu or Fluke.  It is
simply a matter of adequate performance at an affordable price.  Read complete article
How To Place Orders:
4 Ways To Place Orders at Fiber Optic Tools
1.) Via PayPal - Authorized PayPal Account
2.) Via Email - bob@fiberopticstools.com
3.) Via Phone - (512) 785-9024
4.) Via Credit Card

Air Freight or Special Handling? NO WORRIES!
GIVE US A CALL and we will handle it for you.
How To Place Orders:
4 Ways To Place Orders at Fiber Optic Tools
1.) Via PayPal - Authorized PayPal Account
2.) Via Email - bob@fiberopticstools.com
3.) Via Phone - (512) 785-9024
4.) Via Credit Card

Air Freight or Special Handling? NO WORRIES!
GIVE US A CALL and we will handle it for you.
Questions? Ask the Owners!
Fiber Optics Instructors
Certified by the
Ph: 512-785-9024
Return Policy:  No returns will be accepted after 30 days from date of shipment.  There MUST be an RMA #
with every shipment that is returned.  If the RMA # is not clearly visable on package and/or packing list, the
shipment will be refused.  Further, there will be a 15% re-stocking charge on all returned items.  If there are
Warranty Issues, those will be dealt with on an individual basis.