1205CX A Advanced CATV TDR User Manual Brochure

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Model 1205CXA
Coaxial Metallic Time Domain Reflectometer
Operation Manual
250-0027-04

Thank you
1205CXA Model
Metallic1205CXA
Time Domain
Reflectometer.
Our Reflectometer.
goal is to provide
yougoal
Thank
you for
for purchasing
purchasingRadiodetection’s
Riser-Bond Instruments'
Metallic
Time Domain
Our
with
a
high
quality
troubleshooting
tool
which
is
both
powerful
and
easy
to
use.
We
all
share
acommitment
to
quality
is to provide you with a high quality troubleshooting tool which is both powerful and easy to use. We all share a
and excellence and will do our best to continue to provide you with test equipment to meet your needs. Please read
commitment to quality and excellence and will do our best to continue to provide you with test equipment to meet
the operator’s manual thoroughly to ensure the best results from your TDR. As always, Radiodetection welcomes your
your needs. Please read the operator's manual thoroughly to ensure the best results from your TDR. As always,
comments and suggestions.
Riser-Bond Instruments welcomes your comments and suggestions.
Radiodetection
28 Tower Road
Raymond
ME 04071
USA

Radiodetection Ltd.
Western Drive
Bristol
BS14 0AF
United Kingdom

Tel:
+1 (207) 655 8525
Toll Free: +1 (877) 247-3797
Fax:
+1 (207) 655-8535
E-mail: rd.sales.us@spx.com

Tel:
Fax:
E-mail:

+44 (0) 117 976 7776
+44 (0) 117 976 7775
rd.sales.uk@spx.com

TABLE OF CONTENTS
SECTION 1:
1.1
1.2
1.3

SECTION 4: APPLICATION NOTES.......................23
4.1 TDR Tap Plate Connector...........................23
4.2 Missing Signals, Corroded Splices, and
Unidentified Cables....................................24
4.3 Detecting Intermittent Faults......................24
4.4 Measuring and Documenting.....................25
4.5 Detecting Theft of Service..........................26

GENERAL INFORMATION...................2

Safety Information.........................................2
Introduction ..................................................3
General Features..........................................3

SECTION 2: OPERATING PROCEDURES................4
2.1 Theory of Operation......................................4
2.2 Front Panel Description ...............................5
2.3 Instrument Operation..................................10
SECTION 3: TDR FUNDAMENTALS.......................19
3.1 First-time Start Up.......................................19
3.2 Cable Connection.......................................19
3.3 Cable Check...............................................19
3.4 Cable Impedance.......................................19
3.5 Velocity of Propgation (VOP).....................19
3.6 Pulse Widths...............................................21
3.7 Return Loss/ Fault Severity.........................22

SECTION 5:

WAVEFORM EXAMPLES....................28

SECTION 6:

MAINTENANCE.................................36

SECTION 7:

SPECIFICATIONS..............................37

APPENDIX A - Serial I/O Printer Port.......................39
APPENDIX B - VOP Table........................................39
WARRANTY

1

SECTION 1: GENERAL INFORMATION

Do not modify any part or accessory of this instrument.
If the unit is damaged, do not use. Also, secure the
product from use by others.

1.1 Safety Information
Symbols:
!

Warning

Caution

To avoid electric shock, do not remove covers or any
parts of the enclosure.

Caution: Refer to accompanying
documents.

If the instrument or any associated accessory is used
in any manner not detailed by the accompanying
documentation, the safety of the operator may be
compromised.

Any Warning sign identifies a
procedure or process, which if not
correctly followed, may result in
personal injury.

Caution: As with most electronic equipment, care
should be taken not to expose the equipment to extreme
temperatures. To insure that your Model 1205CXA will
be ready to use, store the instrument indoors during
extreme hot or cold temperatures. If the instrument is
stored overnight in a service vehicle, be certain the
instrument is brought to specified operating temperatures before using.

Any Caution sign identifies a
procedure or process, which if not
correctly followed, may result in
equipment damage or loss of data.

Warnings
Before using, review all safety precautions. Note and
observe all warning and caution statements on the
equipment and in the documentation.
Do not operate this instrument near flammable gases
or fumes.


1.2 Introduction

1.3 General Features

The Model 1205CXA is a multipurpose metallic time
domain reflectometer (TDR), cable fault locator
designed to quickly and easily locate cable faults in
metallic cable. The Model 1205CXA combines the latest
in technology and user-friendly operation, creating the
most versatile and accurate TDR available.

Locates cable and connector faults in all types of paired
metallic cables.
Tests both twisted pair and coaxial cables.
Sensitive sub-nanosecond pulse width locates small
faults that can plague high bandwidth systems or cause
digital interruption.

Using time domain reflectometry, or cable radar, the
Model 1205CXA transmits a signal down the cable.
Impedance discontinuities along the length of the
cable reflect some or all of the signal energy back to
the instrument. These reflections are measured and
displayed as both a waveform and a numeric distance
to the fault.

Rugged packaging for testing in all types of weather
conditions.
RANGE-PLUS offers pre-set ranges for quick testing.
Automatic and manual cursor placement functions.

The Model 1205CXA will test all types of metallic paired
cables for opens, shorts, impedance discontinuities,
and many other cabling problems.

Exclusive SUPER-STORE waveform storage.
Unique dual independent cursors.
Compact, lightweight, portable.
RS-232 Port.



SECTION 2: OPERATING PROCEDURES
Reflections from an impedance higher than the characteristic impedance of the cable are in-phase, or
upward. Reflections from an impedance lower than the
characteristic impedance of the cable are out-of-phase,
or downward.

2.1 Theory of Operation
A Time Domain Reflectometer (TDR) works on the
same basic principle as radar. Pulses of energy are
transmitted down the cable under test. If the cable has
a constant impedance and is properly terminated, all
of the energy will be absorbed.

Inductive faults cause the TDR to display an impedance
higher than the characteristic impedance of the cable
being tested. Capacitive faults cause the TDR to display
an impedance lower than the characteristic impedance
of the cable.

If the pulse reaches an impedance discontinuity,
part or all of the pulse energy is reflected back to the
instrument. If the cable is an open circuit, the reflected
pulse will be in-phase (upward reflection) with the
output pulse. If the cable is a short circuit, the reflected
pulse will be out-of-phase (downward reflection) with
the output pulse.

The Model 1205CXA displays the cable under test as
a digitized waveform with a numeric distance readout
on the Liquid Crystal Display.

In either case, a substantial amount of energy will be
reflected. If it were possible to have a cable with no loss,
all of the signal energy would be reflected. The incident
and the reflected signals would look identical.

The digitized waveform enables the operator to view the
signature of the cable in great detail. An impedance
mismatch (opens, shorts or faults of less severity) can
be identified and distances to the faults determined.



2.2 Front Panel Description

ZOOM
OUT



ZOOM
IN

BACK
LIGHT



WAVEFORM
POSITION



I

CONTRAST

V GAIN



V GAIN

RANGE

RANGE

CURSOR 1

CURSOR 1

CURSOR 2

CURSOR 2

O







CONTRAST





*

MODEL 1205CXA
12V

!

CABLE

CHARGER

!

RS-232



High Resolution Metallic TDR
Cable Fault Locator

SERIAL #



Cursors The 1st and 2nd cursor keys move the cursors along the waveform. Use the 2nd cursor arrows
to move the second cursor to the point of interest on
the waveform. Cursors should be set on the leading
edges of the reflection.

Keypad
I/O Use the I/O key to turn the instrument on and off.
Backlight Use the backlight key to turn the CFL backlight on or off.
Contrast Use the two arrow keys to change the contrast of the LCD.

A menu will pop-up when the asterisk key is pressed.
The unlabeled icon keys control a selection cursor for
choosing the desired instrument control. Once the
control is selected, pressing the asterisk key will close
the pop-up menu and activate the control.

*

Zoom In, Zoom Out Use the two zoom keys to zoom in
or out on an area of interest on the waveform display.
Waveform Position Use the four arrow keys to move
the position of the waveform(s) left, right, up, and
down.

When a control is activated, the icon keys will control
the function and on-screen icons will graphically
represent how the icon keys affect the control. The
icon will change depending on the type of action in
the particular control.

V Gain Use the two arrow keys to decrease and increase the vertical waveform amplitude or gain.
Range Use the two range keys to increase and decrease the cable distance displayed on screen. Pulse
width and vertical gain are automatically adjusted for
each range.



Display
The display is a 320 x 240 dot-matrix, high contrast,
SUPERTWIST Liquid Crystal Display (LCD) with cold
cathode fluorescent lamp (CFL) backlighting. The top
two-thirds of the display contains the waveform and
cursors. Instrument setting and measurements are
located on the bottom of the display.

0

1
2

I

E

B

Information areas on the Liquid Crystal Display (LCD)
are:

A

A. Message Center The message center displays
various information about the status of the instrument.
Additional messages are displayed when utilizing the
standard and optional waveform storage functions.

COAX
		
		
L1: 07dBRL

J

C
D

Press
Pulse
V Gain
VOP

= 100nsec
= 4x
= 54%

131

G

ft

*

VOP

 

F

Ba tt

H

B. Pulse Width Model 1205CXA has selectable pulse
widths for testing various lengths of cable.

E. Menu Pop-up menu for selecting instrument controls.

C. Vertical Gain Displays the level of vertical amplitude or gain applied to the waveform.

F. Selected Menu Items Displays the currently active
menu selection, which is controlled by the icon keys.
The on-screen icons graphically represent how the keys
affect the control.

D. VOP or V/2 The programmed velocity of propagation is displayed as a percentage of the speed of
light from 30% to 99%.



G. Distance Between Cursors The Model 1205CXA
automatically calculates and displays the distance
between the 1st and 2nd cursors. Each time the cursor placement is changed or the VOP is adjusted, the
DISTANCE BETWEEN CURSORS reading will automatically update.
H. Battery Level Indicator A horizontal bar graph
indicates the battery level. When the battery level
reaches the one-quarter full scale mark, the low battery
message is activated.
I. Distance Markers These tick marks are displayed
along the top of the screen and can be in feet or meters
format. These marks enable the operator to view the
distance along the cable being tested.
J. Fault Severity The Model 1205CXA automatically
calculates the signal return loss (dBRL).



Pop-up menu
Store Use the icon keys to select an available storage
location and press the * key to store.

Mode Use the two icon keys for cycling through the
available display modes for single, dual, or difference
waveform display modes.

Recall Use the icon keys to select a storage location
and press the * to recall to display.

Overlay Use the two icon keys to adjust the trace separation in dual waveform display modes. This control is
only available when two waveforms are displayed.

Pulse Use the two icon keys for decreasing and increasing the pulse width.

Tagging Use the * and icon keys to edit the alpha
numeric label associated with a stored waveform.

Cable Use the two icon keys to select the cable type
under test. VOP will automatically be set for the cable
type selected.

Search Use the * key to perform an auto-search of the
cable to find major faults or the end of the cable.

VOP or V/2 (depending on the velocity format setting
chosen in the setup menu) Use the two icon keys for decreasing and increasing the velocity of propagation.

Press
Store

Filter Use the two icon keys for cycling through the
available software filters.
Setup Use the * key to display the setup options
menu.
Print Use the * key to print the on-screen waveform to
a serial printer for documentation.

Recall

Mode

Pulse

Overlay

Cable

Tagging

VOP

Search

Filter
S e t u p 		


.
* to Pselect
rint

2.3 Instrument Operation

With the distance format set in feet mode and a 83%
VOP, the ranges are 10, 20, 50, 100, 200, 500, 1k, 2k,
5k, 10k, 20k feet.

Proper operation and precise distance readings will be
insured if you remember the following procedures and
choose the mode of operation to best suit your cable
testing conditions:
Establish aa quality
It is
best
if the
qualitycable
cableconnection.
connection.
It is
best
1. Establish
connect
to to
theconnect
instrument
ifcable
the is adapted to cable
is directly
adapted
front panel.
Useinstruadapters and connectors
same
directly
to the
mentwith
frontthe
panimpedance
as
the
cable
under
test.
el. Use adapters and connectors with
the same impedance as the cable under test.
2. Enter
Enter the
2.
the correct
correctVOP
VOPofofthe
thecable
cableunder
undertest.
test.(See
Section
3.5)
(See
Section 3.5)
3. Start the test in the shortest range or pulse
3. Start the test in the shortest range or pulse width.
width.

Characteristics of RANGE-PLUS operation:
1. To switch to the next range, press the RANGE
up and down arrows. The distance graduations
will change as the range is changed.
2. Cursor 2 can be moved while in the RANGE
mode. As the ranges are changed, cursor 2
will remain at the same position as the previous
range.
3. Cursor 1 can also be adjusted; however, it
will be placed back at the "0" distance marker
whenever a new range is selected.

2.3.1 Range Control
RANGE-PLUS operation will step through and display a
preset distance of cable. A range consists of a specific
pulse width, gain setting, and distance of cable. The
transmitted pulse is on the left side of the screen and
the cable span is shown to the right. The exact length
of cable on the screen for each range will be relative to
the VOP being used. When using range, you still have
complete manual control and can change the pulse
width, zoom-level and other key functions as needed.
10

2.3.2 Distance Between Cursors

To set the cursors, zoom in on the point of interest using HORIZONTAL ZOOM. Set the first cursor by using
the 1st cursor left and right arrows to the “0” distance
marker on the waveform. To set the second cursor, use
the 2nd cursor left and right arrows to move the second
cursor to any point of interest. For a more accurate distance reading, zoom in on the reflected pulse for better
detail and adjust cursor placement manually.

When a test is initiated, the two independent cursors
are used to measure the distance to a fault or to the
end of the cable. The cursors are interchangeable; but,
to reduce confusion, use the 1st CURSOR to mark the
point you are measuring from and the 2nd CURSOR
to mark the point you are measuring to. The cursors
will retain their accuracy and resolution regardless of
distance or horizontal zoom settings.

The distance between the cursors is displayed on the
LCD. Remember that the distance measurement is not
from the transmitted pulse, but from the first cursor to
the second cursor. Accuracy of the distance reading
is dependent on the placement of the cursors and an
accurate VOP.

Model 1205CXA's unique dual independent cursors
feature allows you to place cursors at, and measure to
(or between) ANY TWO POINTS on the waveform. The
distance displayed will automatically adjust with the
movement of the cursors.
DISTANCE BETWEEN CURSORS is automatically
calculated and displayed. Distance is determined from
the cursor placement on the waveform. Therefore, the
accuracy of the cursor placement is crucial to accurate
readings. For greatest accuracy, place the 1st cursor
to the "0" distance marker and the 2nd cursor at the
leading edge of the reflected pulse.

11

2.3.3 Display Modes
Live Display Mode Loops:
The Display mode loop alternates between Coax and IFD (Intermittent Fault Detection) mode.
Line 		
		
IFD 				

Displays active test port.
Displays IFD waveform.

Recalled Display Mode Loops:
When a waveform has been recalled from memory, the Mode control will cycle through display modes involving the
coaxial test port and the recalled waveform. The loop described below applies to the test port.
Line & Stored 			
Displays Live and Stored waveforms simultaneously.
Line-Stored 			
Displays difference between Live and Stored waveform.
Stored 				
Displays Stored waveform only
Line* 				
Displays Coax (active test port) waveform

* To exit the recalled waveform loop, enter the Live mode and wait five seconds.

12

during the IFD mode, the instrument may need to pause
slightly to fill in additional waveform data.
During the IFD mode, do not change the pulse width or
range. If the pulse width is changed, the IFD routine will
reset and start collecting data at the new pulse width.

2.3.4 Intermittent Fault Detection (IFD) Mode
The IFD mode detects and displays intermittent faults,
whether they are opens or shorts. Some TDRs have a
similar feature; however, if the waveform is repositioned,
the intermittent fault function is interrupted and the
process must be started over. The Model 1205CXA’s
IFD mode retains the waveform trace. The waveform
can be adjusted, repositioned, zoomed in and out, and
the cursors moved, without affecting the IFD function.
The Model 1205CXA will monitor the cable, waiting for
an intermittent fault to occur.

The intermittent fault waveforms are stored in memory.
This is an important difference between the Model
1205CXA and other TDRs. While the waveform is in
memory, there are three important things to note:
1. The waveform can be adjusted as if it were a
live waveform.
2. Make sure the Model 1205CXA battery is
fully charged. In the IFD mode, if the instrument
battery level goes below a minimum safe level,
the instrument will turn itself off to prevent possible
battery damage.
3. Waveforms can be stored and taken back
to the office for downloading to a computer via
WAVE-VIEW software or to a serial printer for
archiving.

Upon entering the intermittent fault mode:
The LCD’s waveform area displays and saves
the maximum and minimum reflections of the
waveform trace. The auto-off 10 minute timer is
disabled so the instrument does not turn off in
the middle of the test.
The IFD waveform area stores waveform changes. If an
open or short occurs, the instrument will keep the fault
trace displayed against the live waveform. This function
allows the user to find intermittent problems.
The operator can adjust the waveform with the horizontal
position controls, increase or decrease the vertical gain,
zoom in or out, and move the cursors. When zooming

13

To store an IFD waveform, select Store from the pop-up
menu while in the IFD mode. The instrument will save
the intermittent waveform in a dedicated IFD memory
location. If a waveform has been stored in the IFD
memory, the next time you enter the IFD mode, a prompt

will appear to confirm you wish to overwrite the old
waveform. Stored IFD waveforms have approximately
maximum 1/2 distance range compared to normal
stored waveform of equivalent pulse width.

2.3.8 Setup Options Menu
Before using your Model 1205CXA, there are several
setup options you can choose. The options you choose
will remain selected, even when the instrument is turned
off.

2.3.5 Zoom Control
The Horizontal Zoom control expands and contracts the
waveform around center screen. This control can be
used to closely examine a feature found using preset
RANGE operation or can be used for complete control
of the waveform display distance.

Options available
Horizontal Scale Units:
Distance format:		
dBRL Type:			
Horizontal Reference:
Backlight at start-up:		
Velocity format:		
VOP precision:		
Cancel test lead length:
Serial printer type:		
				
Auto Filter:			

2.3.6 Vertical Gain
The Vertical Gain control increases or decreases the
vertical amplitude or gain of the waveform display.
Increasing the vertical gain of the waveform display
allows the user to see smaller reflections or minor faults
on the cable signature.

FEET or METERS
FEET, METERS, or TIME
FAULT or TOTAL
ON or OFF
ON or OFF
VOP % or V/2
2 DIGIT or 3 DIGIT
YES or NO
CITIZEN PN60 or
SEIKO DPU 411
ENABLED or DISABLED

The horizontal scale units option allows the distance
scale, shown on screen, to display in feet or meters.

2.3.7 Cable Type Menu
The Cable Type Menu is used to select the type of cable
under test which sets the VOP control to the correct
value. The VOP control can still be changed at any time
by the operator if a different VOP value is required.
14

The distance format option allows the operator to
select the distance between cursors and waveform
distance markers to either feet, meters, time, or
combinations of these three.

The dBRL type option selects the method for dBRL
calculation. “Total” displays the dBRL of the fault, plus
the attenuation of the cable. “Fault” displays dBRL of
the fault minus the attenuation of the cable.

The serial printer option is used to select the type of
serial printer for RS232 printing. The options available
are Seiko DPU 411 thermal printer and the Citizen PN60
plain paper printer.

The horizontal reference option allows the user to
display a horizontal reference line on the center of the
display.

The Auto Filter option enables or disables automatic
software noise filtering. When enabled, the software
noise filtering will automatically be activated if a high
level of external noise is detected on the input.

The backlight at start-up option is used to select
whether the LCD backlight is on or off at start-up.

2.3.9 Waveform Storage and Recall

The velocity format option selects whether the velocity
of propagation control is displayed as a percentage
of the speed of light (VOP) or as meters or feet per
microsecond velocity divided by 2 (V/2). VOP precision
selects the precision of the VOP display and can be
either 2 or 3 digit precision.

Model 1205CXA’s SUPER-STORE waveform storage
capability allows the operator to store a waveform for
later comparison and analysis. SUPER-STORE stores
the entire cable under test, not just the section of cable
displayed on screen at the time of storage. This feature is
helpful if: the incorrect section of cable was on screen at
the time of storage; comparing two separate waveforms
(cables); or for comparing the same waveform (cable)
before and after repairing the cable.

The cancel test lead length option allows the user to
automatically subtract the length associated with the
test leads from the distance between cursor readout.
The instrument will place the first cursor at the end of
the test leads.

The Model 1205CXA comes standard with 32 SUPERThe Model 1205CXA comes standard with eight SUPERSTORE waveforms. The waveform(s) will remain in storage,
STORE waveform memory locations. The Extended
whether the instrument is on or off.

NOTE: If test leads are not used, make sure to
disable the cancel test lead length.
15

memory option is available to increase the stored
waveform capacity to 32 waveforms. The waveform(s)
will remain in storage, whether the instrument is on or
off.

To store a waveform, scroll through the menu items until
STORE is highlighted. SUPER-STORE will prompt the
operator to select a memory location.

Pulse Width
		
Sub nsec
2 nsec
25 nsec
100 nsec
500 nsec

NOTE: If a memory location is selected which
already has a stored waveform, the user will be
prompted to overwrite the existing waveform or
cancel the store. Memory locations do not have
to be “cleared” to use.
The user can clear all waveforms in memory by
using the “clear waveform” function.

Coax Distance
(83% VOP)
450ft (180m)
1,500ft (590m)
5,000ft (1,970m)
10,000ft (3,940m)
15,000ft (5,900m)

2.3.10 Noise Filter / Powered Cable
Testing a cable that has power or a signal present is
possible, although for safety reasons, it is not recommended.

To choose a previously stored waveform, scroll through
the menu until RECALL is highlighted. A memory selection list will appear allowing the user to select the
desired memory location. Choose any of the stored
waveforms by scrolling to the desired number. When
the desired location number is highlighted, press * to
select the stored waveform to be displayed with the
live waveform. All instrument functions will operate
normally.

WARNING: The Model 1205CXA’s input is protected. The instrument features a POWERED
CABLE WARNING which appears in the message center when a cable with power present
is attached. However, for safety reasons, it is
recommended that the Model 1205CXA NOT
be connected to cable where a signal or power
is present.

SUPER-STORE will optimize the distance and resolution
of a stored waveform based on the pulse width of the
test. The following table describes minimum distances
versus pulse width of a stored waveform.
16

If you must test a cable with power present, the Model
1205CXA features NOISE FILTERS. If the Model
1205CXA is connected to a cable with power present,
the microprocessor automatically filters out the power

signal and displays only the normal waveform of the
cable under test. When the NOISE FILTER automatically
engages, the message center will alternately display
POWERED CABLE and AUTO FILTER.

TDRs are used in a variety of industries and applications.
With the various types of test surroundings, also
comes various types of signals which can affect the
performance of a TDR.

If noise or power is present at levels not sufficient to
automatically engage the noise filter, the filter can be
switched on manually.

Signals such as power (50 to 400 Hz), audio (100 Hz
to 20,000 Hz), data (50 kHz to 10 MHz), and RF (500
kHz to 1 GHz) can all affect a TDR differently. Therefore,
a TDR with only one type of filtering system may work
well in one application but not in another.

If any key is touched while the noise filter is in use, the
filter is disengaged while that key function is performed.
The filter reengages after five display cycles. This allows
multiple keypad selections without waiting for the filter
to engage or disengage.

Riser-Bond Instruments has addressed this problem
by engineering a unique multifunction/multilevel noise
filtering system into the Model 1205CXA which can
greatly improve test results under these types of conditions.

NOTE: It takes longer to generate a waveform
with the noise filter engaged. Therefore, the
waveform repetition rate is reduced.

By selecting FILTER from the menu and using either
icon key, you can manually step through various levels
and types of noise filters. Each touch of the ICON key
starts a new type and level of filtering, each of which will
be displayed in the message center. Every filter should
be tried in order to determine the best result.

NOTE: The filter will not protect the instrument
from damage caused by high voltage.
Multifunction Waveform Filtering (Optional)
This option provides a unique multilevel filtering system
for filtering various types of interference. Each touch of
the FILTER key engages a different type or level of filter.
Try each of the filters to determine which filter works
the best for each test.

17

If power is still present on the cable after the FILTER
option is deselected in the menu, the message center
will alternately display POWERED CABLE and FILTER
OFF.

charge. Allow at least 16 hours charging time for the
batteries to cycle from a completely discharged state
to a fully charged state. The Model 1205CXA may be
operated while the batteries are charging, but this will
increase the charging time.

The combination of automatic and manual noise filters
effectively filters out unwanted signals and will display
the normal waveform signature of the cable.

The Model 1205CXA has a built-in, current-limiting
circuit which limits battery charge current. As the
batteries approach maximum charge, the charging rate
is decreased. Do not leave the batteries charging for
long periods of time; their useful life will be shortened.
The Model 1205CXA can be charged with either an AC
or DC power source with correct voltage and current
specifications.

2.3.11 Charging the Batteries
The Model 1205CXA is powered by a rechargeable battery pack contained within the instrument. The Model
1205CXA is shipped from the manufacturing plant with
a full charge and will operate approximately 6 hours
between charges.

NOTE: The Model 1205CXA may also be
charged using an optional 12 volt cigarette lighter
adapter.

When the battery supply has been depleted and the
batteries need to be recharged, plug the external battery charger into the front panel charger socket and into
any common AC outlet. The front panel green LED will
light to indicate the batteries are being charged. The
LED indicator will stay illuminated while the charger is
plugged in.

2.3.12 RS-232 Interface
Model 1205CXA includes an RS-232 Interface
Connector for serial printing and the WAVE-VIEW
software option. Two serial printer drivers are available
in the setup options menu.

The Model 1205CXA will operate while being charged
as long as the battery level indicator is above a quarter
18

SECTION 3: TDR FUNDAMENTALS

are spliced, use the independent cursors and the
correct VOP for each section of cable to yield the most
accurate reading.

3.1 First Time Start-up
Before using your Model 1205CXA, there are several
setup options you can choose from. Select the Setup
menu control and select the desired default settings
for the instrument. The options you choose will remain
selected, even when the instrument is turned off. (See
Section 2.3.8 for setup options.)

3.4 Cable Impedance
Any time two metallic conductors are placed close
together, they form a transmission line which has a
characteristic impedance. A TDR tests for a change
in impedance which can be caused by cable damage,
faulty splices, water ingress, change in cable type,
improper installation and even manufacturing flaws.

3.2 Cable Connection
It is important to establish a quality connection to the
cable under test. The TDR sends a high frequency
signal that is not efficiently transmitted through poor
connections or inadequate test leads.

The insulating material that keeps the conductors
separated is called the cable dielectric. The impedance
of the cable is determined by the conductor diameter,
the spacing of the conductors from one another, and
the type of dielectric or insulation used.

3.3 Cable Check

3.5 Velocity of Propagation (VOP)

Do a quick check of the cable. Get as close to the
suspected fault as possible. Use common sense when
examining the area near to the suspected fault. For
example, if there is a new fence, that is probably where
the problem is located.
When testing a section of cable where different types
of cable

19

Determine VOP: The VOP number of a cable is determined by the dielectric material that separates the two
conductors. In a coaxial cable, the foam separating the
center conductor and the outer sheath is the material
determining the VOP. In twisted pair, the VOP number
is determined by the spacing between conductors and
the insulation that separates them.

The VOP of a cable can change with temperature,
age and humidity. It can also vary from one manufacturing run to another. Even new cable can vary
as much as +/- 3%.

one end and record the fault distance reading. Next,
using the same VOP setting, test from the opposite
end of the cable and again record the fault distance
reading. If the sum of the readings is the exact length
of the cable that was measured, the VOP is correct
and the fault has been located.

There are several ways to determine the correct
VOP. The first is to simply refer to the VOP card
provided with the instrument. Second, consult the
manufacturer for the correct VOP of that specific
cable. A third way is to actually determine the VOP
from a known cable length. Measure a known cable
length, the longer the cable, the more accurate the
VOP will be. Correctly place the cursors of the TDR
on the output pulse and the reflected pulse (end) of
the cable. Change the VOP setting until the “Distance
Between Cursors” displays the known length. You
have now determined the VOP of the cable.

However, if the sum of the two readings is more than
the measured distance, reduce the VOP setting and
retest. If the sum of the two readings is less than
the measured distance, increase the VOP setting
and retest, but the operator must also consider the
possibility of two faults. Keep changing the VOP
settings until the distance readings total the known
length.
The same result can be obtained mathematically.
Take the actual cable length and divide by the
sum of the two TDR readings obtained by the tests
from each end. This produces an adjustment factor. Next, multiply each of the TDR readings by the
adjustment factor. The result will be the corrected
length readings.

Reducing VOP error: When trying to pinpoint a fault,
the most common technique used to reduce VOP
error is to test the faulty cable from both ends. The
procedure is as follows:
Determine the path of the cable. With a measuring
wheel or tape, measure the exact length of the
cable being tested. Set the VOP according to the
manufacturer’s specifications, test the cable from
20

Example: TDR readings equal 700 feet and 500
feet from either end. Actual cable distance equals
1000 feet.

range or larger pulse width and retest. Keep
adjusting to the next larger pulse until the fault
is located.

700 + 500 = 1200
1000/1200 = Adjustment Factor = 0.833
700 x 0.833 = 584 actual (corrected length)
500 x 0.833 = 416 actual (corrected length)

Cable Loss
Cable has loss. A signal attenuates as it travels down
a cable. Some cables have greater loss or signal attenuation than others. Because the pulse amplitude is
reduced by the loss in the cable, major faults at long
distances will appear to be of the same amplitude as
minor faults close to the instrument.
Attenuation affects the maximum length of cable that
can be tested. The greater the cable attenuation, the
more energy must be sent down the cable to test longer
lengths. To increase the amount of energy transmitted
into the cable, increase the pulse width. The Model
1205CXA has multiple pulse widths which the operator
can select to best accommodate the cable length being
tested. However, since the location of a fault is unknown,
it is best to start the testing procedure in the shortest
pulse and increase the pulse widths as the distance
being tested is increased.

NOTE: When measuring cable reels, cable coiled
on the reel can cause an error in the length reading by as much as 2 to 5%.
3.6 Pulse Widths
Many TDRs have selectable pulse width settings. The
pulse width allows the TDR signal to travel down a
cable at different levels of energy and distances. The
wider the pulse width, the more energy is transmitted,
and therefore, the further the signal will travel down
the cable.
NOTE: Always start the fault finding procedure
in the shortest pulse width available, as the
fault may be only a short distance away. Use
the range or zoom and gain controls to locate
fault. If the fault is not located, adjust to the next
21

Remember, the larger the dBRL reading, the smaller
the problem and vice versa.

3.7 Return Loss / Fault Severity
A unique feature of Model 1205CXA is AUTOMATIC
dBRL calculation. This eliminates the need to visually
and/or manually calculate the RETURN LOSS at a particular point on the waveform.

The Model 1205CXA can be set up to display dBRL in
two possible modes, Total dBRL and Fault dBRL.
Total dBRL displays the dBRL of the fault, plus the
attenuation of the cable or cable loss.

The RETURN LOSS (dBRL) reading is calculated using the signal amplitudes and waveform data samples
taken just to the left and right of each cursor. It is best
to position the cursors along the leading edge of both
pulses.
Return Loss is a way of measuring impedance changes
in a cable. The algorithm for determining return loss
is:

Fault dBRL displays the dBRL of the fault and
factors out the attenuation of the cable or cable
loss.
In the Fault dBRL mode, the attenuation (loss) of the
cable has been subtracted out of the display reading.
Therefore, a complete open or short will read 0 dBRL,
regardless of the length of cable.
NOTE: The only way to get an accurate measurement in the Fault dBRL mode is to use the Setup
menu to enter the type of cable under test.

dBRL=20 Log10VO/VR
Where VO is the amplitude of the transmitted
pulse and VR is the amplitude of the reflected
pulse.

To select Fault dBRL mode, press the Menu key and
select CABLE TYPE. Select Fault dBRL. After Fault
dBRL is selected, you will be prompted to select the
type of cable under test. This is necessary to accurately cancel out attenuation effects on the dBRL
reading.

A small value dBRL number means that most of the
pulse energy is reflected by the cable fault. An open
or short would reflect all the energy so its return loss
is zero.
22

Selecting a cable type will also set the VOP of that
particular cable into the VOP display settings.

instead of the original tap plate to gain quick and easy
access to the cable.
First, using a two port tap, remove the circuit board.
De-solder and remove all the components, from the
circuit board. Next, make two wire jumpers which connect the input and output ports to housing connectors
at the respective tap ports on the plate. Connect the
input connector to one tap port and the output connector to the other tap port. This makes the two tap
ports independent from each other and used to test in
either direction from the tap.

SECTION 4: APPLICATION NOTES
4.1 TDR - Tap Plate Connector
It can be tiresome breaking down installed taps and
installing an adapter in order to test the cable with a
TDR. A solution is to modify a tap plate of the same
type in your system to connect the TDR to each leg
of the cable. The modified tap plate can be installed

OUT Connector

To find a location for the wire jumper, look for a coil
connection from the IN to the OUT port which passes
any power signal on the cable through the tap. Solder
one end of a wire jumper to one side of the removed
coil location. To connect the jumper to the tap port,
look for a hole in the circuit board which is connected
to the tap port center conductor. Solder the other end
of the jumper here. Do this for both tap ports.
Use an Ohmmeter to check for continuity when trying
to locate which holes in the board to use, and to check
to see if the plate is wired properly.

Choke
Coil
IN Connector

Jumper Wires

Port Connections

23

To use, remove an existing face plate of a tap either
overhead or underground and replace it with a modified TAP plate. Connect the lead from the TDR to the

input tap port and test the cable back to the next tap.
Double check that there is no AC on the line. Alternatively, connect the lead to the output tap port and read
the following tap. Removing face plates is a lot easier
and quicker than working with connectors.

Corroded Splices - Within many systems, there are a
lot of cable splices. Many are old and their locations
are unknown. With most splices, it is just a matter of
time before they go bad. Use a TDR to locate corroded
splices that need to be repaired.

Warning: Make sure you do not test cable with
AC on the line.

Identifying Cables - If no markings were used during
construction, one can go back with the aid of a plant
map and use the TDR to identify cables by their length.
This is a very efficient way to accurately identify and
mark cables.

4.2 Missing Signals, Corroded Splices,
identified Cables

and Un-

Missing Signals - In certain situations cables may go
bad for no apparent reason. For example a signal
may not be getting into a cable. Start by verifying the
problem is not within the transmitting equipment. If the
problem is not in the transmitting equipment then begin
to check the cable with a TDR. Check the cable from
both ends to find the fault.

4.3 Detecting Intermittent Faults

After locating the fault on the waveform, measure out
to the distance of the fault, then check for anything unusual. For example, a new sign driven into the ground
or a new fence, look for the obvious problem. Then
repair the faulty part of the cable.

The IFD mode can be used to monitor a cable for “intermittent” type problems. The instrument will monitor
the cable, waiting for the mysterious or elusive event
to take place. If a change in the waveform does occur,
the instrument will capture the change, not letting it
disappear. With the event captured, the distance can
be measured and the mystery solved.

As sometimes happens, a cable may cause a problem
only when the wind blows, the rain falls, or infrequently
for no apparent reason. When this type of problem occurs, the IFD function of the instrument can be a real
time saver.

24

When using the IFD mode, there should be no power
present (RF or AC) that can affect the readings. The
test can take only a few minutes or the instrument can
be left on indefinitely to help capture even the most
stubborn intermittent fault.

problems arise at a later date. Cables can be periodically
monitored for signs of deterioration. SUPER-STORE
and WAVE-VIEW provide a variety of opportunities and
applications not found with any other TDR.
SUPER-STORE Waveform Storage is a unique storage
feature of Riser-Bond Instruments’ waveform TDRs.
SUPER-STORE waveform storage, stores all of the
waveform information on screen and off screen. The user
then has the ability to recall and display the waveform at
any time. The waveform can still be fully adjusted. The
only changes that cannot be made are in the pulse width,
the impedance settings, or engaging the filters. This
feature allows a more experienced person to interpret
the waveform, or get a second opinion from coworkers.
It also allows you to do a before and after comparisons,
along with recalling information to test from both ends.

4.4 Measuring and Documenting
Measuring - Cable inventory and management can be
very expensive and time consuming. Many companies
have a problem getting technicians to use partial reels
of cable, due to unknown lengths.
While learning to use the TDR, an installation crew
experimented measuring reels of cable. They learned
to measure and use the partial reels, which saved money
and extra trips back to the warehouse.
The TDR can be used to verify the lengths of new reels
of cable or to identify the lengths of unmarked reels of
cable.
Documenting - Contractors can use SUPER-STORE and
WAVE-VIEW to document their work or to use as proofof- completion and/or performance. SUPER-STORE can
also be used to show the need for cable replacement
or repair. Documenting a cable section when newly
installed makes a convenient and easy comparison when

WAVE-VIEW software allows the stored waveforms to be
transferred to a computer where they can be archived,
adjusted, compared, or analyzed. Using WAVE-VIEW
software in combination with the appropriate equipment
allows the user to e-mail stored waveforms.
NOTE:
Updates
to WAVE-VIEW
software
can can be
NOTE:
Updates
to WAVE-VIEW
software
bedownloaded
downloaded from
Radiodetection
website
at
from the Riser-Bond Instruments
www.radiodetection/waveview
website at www.riserbond.com.
25

The combination of SUPER-STORE and WAVE-VIEW
also make a good tool for TDR training. Students or new
employees can use the computer as though it were a
TDR, which keeps the TDR in the field. In addition, a
variety of sample waveforms can be stored. Various
cable spans and types, faults, system components and
samples of known cable conditions can all be recalled
and studied.

2. Test and store the line connected to the house with
the TDR every time you see an illegal tap. For safety
reasons, it is usually necessary to test the cable and
store the information as quickly as possible. Once
connected, SUPER-STORE allows the technician to
store the waveform in different settings in a matter
of seconds. Later, the information can be recalled
and adjusted as if the TDR were still connected to
the cable under test. When testing into multiple unit
dwellings, it is a good idea to use at least two different pulse widths: the smallest pulse width available
and another to give you more distance.

4.5 Detecting Theft of Service
A TDR is an excellent tool to determine if a device,
such as a television, VCR or Converter, is connected
to the end of a drop cable inside a residence. A TDR
test of a cable with an open end has a very defined
signature (waveform), which is easily recognizable.
A waveform with an open end (upward reflection)
simply indicates there are no devices connected
and, most likely, no probable theft of service.

3. Leave a note on the customer’s door explaining
what was found and how they can call to get service installed.
If the problem repeats itself, it may be necessary to
inform the customer that legal action may be taken
if the problem persists.

To determine theft of service, the following guidelines
are recommended:

Documentation may include photographs, affidavits
and any evidence found on the scene (i.e. homemade
connections and waveforms from a TDR).

1. Once an illegal tap is located, the technician will
disconnect it from service, document the time and
date and possibly confiscate the coaxial cable.

If a cable is illegally connected and running directly
to a dwelling, that resident may still claim he/she had
26

no knowledge and was not using the service. Many
systems have found that if they can prove that the
cable is connected to a device inside the residence,
they can prove it is being used.
Storing the waveform into the TDR allows the
technician to gather evidence for that particular
line. The waveform will show if the cable has been
connected to a device or not. If it is connected to a
television, VCR or cable box, it will display a lowering
of impedance characteristic, or downward reflection.
If the cable is not connected to a device and just
lying on the ground, it will be displayed on the screen
as a complete open or upward reflection.
All stored waveforms can be uploaded to WAVEVIEW software. It provides the same flexibility as
the SUPER-STORE feature. Not only can you adjust
the waveform as if the TDR were still connected, you
can print the results and use them as evidence.

27

SECTION 5: WAVEFORM EXAMPLES

1

2

A great variety of waveforms may be encountered.
This is due to the various applications and electrical
and environmental characteristic differences found in
the wide variety of cables that exist today.
Remember: The reflection of a fault or component will
look different on a short length of cable than it will on
a long length of cable.

Press

Various industries, cable types, and components
produce many different waveforms. The TDR's pulse
width, horizontal zoom, and vertical gain settings all
affect how a waveform will appear.

Line 1
		
		

Pulse
V Gain
VOP

= 2 nsec		
= 2x
= 83%

1 7 8 ft
					
54m

*

VOP





L1 =6 dBRL

Practice testing various known cable segments, with
and without components. Become familiar with how
each segment looks prior to any problems.

Batt

A reflection with the same polarity indicates a fault with
OPEN (high impedance) tendencies. The reflection
shown at the 2nd cursor is a complete open.

28

1

1

2

2

Press
Line 1
		
		

Pulse
V Gain
VOP

= 2 nsec		
= 4x
= 83%

1 1 2 ft
					
34m

Press

*

VOP



Line 1
		
		



Pulse
V Gain
VOP

= 25 nsec		
= 1x
= 83%

8 7 ft
					
26m

L1=08 dBRL

*

VOP





L1 =25 dBRL
Batt

A reflection with the opposite polarity indicates a fault
with short (low impedance) tendencies. The reflection
shown at the 2nd cursor is a dead short.

Batt

The middle reflection at the 2nd cursor is a partial
open followed by a complete open (end of the
cable). The more severe the fault, the larger the
reflection.

29

1

1

2

2

Press
Line 1
		
		

Pulse
V Gain
VOP

= 25 nsec		
= 1x
= 83%

9 1 ft
					
28m

Press

*
Line 1
		
		

VOP





Pulse
V Gain
VOP

= 2 nsec		
= 20 x
= 83%

1 5 2 ft
					
46m

*

VOP





L1 =22 dBRL

L1=22 dBRL

Batt

The middle reflection at the 2nd cursor is a partial short
followed by a complete open (end of the cable). The
more severe the fault, the larger the reflection.

Batt

Due to attenuation, the reflections caused by each
equally spaced taps are progressively smaller. A larger
reflection (2nd cursor) beyond a smaller reflection may
indicate an unterminated or faulty tap.

30

1

1

2

2

Press
Line 1
		
		

Pulse = 2 nsec		
V Gain
= 72 x
VOP
= 83%

L1 =55 dBRL

51

ft

					

Press

*
Line 1
		
		

VOP





Pulse
V Gain
VOP

= 25 nsec		
= 16 x
= 83%

2 0 3 ft
					
62m

*

VOP





L1 =15 dBRL
Batt

Two sections of cable with a splice shown at the 2nd
cursor. The amount of reflection caused by the splice
is directly proportional to the quality of the splice. A
good splice = small reflection; a bad splice = large
reflection.

Batt

Coaxial taps (both indoor and outdoor) will cause
reflections along the waveform. The quality and value
of each tap determines the amount of reflection.

31

1

1
2

Press
Line 1
		
		

2

2

Pulse
V Gain
VOP

= 2 nsec		
= 12 x
= 83%

55 ft
					
17m

Press

*

VOP



Line 1
		
		



Pulse
V Gain
VOP

= 2 nsec		
= 8x
= 83%

50 ft
					
15m

L1 =36 dBRL

*

VOP





L1 =45 dBRL
Batt

A splitter or directional coupler can be identified
although accurate measurements are difficult due
to multiple reflections. The 2nd cursor identifies the
splitter. The two reflections following are the ends of
each of the cable lengths.

Batt

A water-soaked cable will display a waveform with a
downward slope indicating the beginning of the water
and an upward rise at the end of the water. Generally,
the area between the two reflections will appear “
noisy.”

32

1

1
2

Press
Line 1
		
		
L1=55 dBRL

Pulse
V Gain
VOP

= 25 nsec		
= 8x
= 83%

6 8 6 ft
					
209m

2

Press

*

VOP



Line 1
		
		



Pulse
V Gain
VOP

= 25 nsec		
= 20 x
= 83%

4 8 4 ft
					
148m

*

VOP





L1 =16 dBRL
Batt

A properly TERMINATED cable will absorb the TDR
signal, resulting in no reflection. Faults prior to the
termination may appear as reflections along the
waveform.

Batt

Testing through to an antenna usually results in a “S”
shaped reflection, although reflections can vary greatly
depending on the antenna.

33

1

1

2

Press
Line 1
		
		

Pulse
V Gain
VOP

= 25 nsec		
= 128 x
= 83%

4 9 1 ft
					
150m

Press

*

VOP



2

Line 1
		
		



Pulse
V Gain
VOP

= 25 nsec		
= 32 x
= 83%

5 2 ft
					
16m

L1 =19 dBRL

*

VOP





L1 =49 dBRL
Batt

Testing tower cables with antennas can be challenging
due to energy induction from high RF areas as shown
in this waveform. Stepping through various noise filter
settings will result in a “cleaner” waveform.

Batt

Mechanical inner-connectors (known as bullets) connecting sections of broadcast transmission line sometimes burn open causing power outages. These bullets
can be detected by a TDR.

34

1

2

1

Press
Line 1
		
		

Pulse
V Gain
VOP

= SUB n sec		
= 32 x
= 83%

72 ft
					
22m

Press

*

VOP



2

Line 1
		
		



Pulse
V Gain
VOP

= SUB nsec		
= 104 x
= 83%

5 2 ft
					
16m

L1 =40 dBRL

*

VOP





L1 =38 dBRL
Batt

The three events seen in this section of 750 CATV
hardline are a minor dent, a major dent, and a
questionable splice.

Batt

The horizontal zoom and vertical gain keys allow the
operator to view these three crimps more closely.

35

SECTION 6: MAINTENANCE

Inspect cable accessories for damaged insulation, bent
or broken clips. Replace as necessary.

Cleaning
Remove dust from the outside of the instrument and
connectors with a lint free cloth or a small, soft brush.

Warning: To avoid risk of electric shock, do not perform service of any type to the instrument or any accessory.

Clean the case and instrument with a mild soap and
water cleanser. Make sure the cloth is only damp to
avoid getting water in the instrument.

Service
There are no user serviceable parts on or in this
instrument. It is recommended that service of any
type, to the instrument or any accessories, be referred
to Riser-Bond Instruments or another authorized repair
facility.

Do not use harsh chemicals or abrasive cleaners. Damage to the front panel overlay may result.
Periodic Inspection
To maintain the TDR in peak operating condition, periodically inspect the instrument and accessories to
make sure there is no damaged, worn or missing parts
or deformations in the enclosure. If the unit is regularly
operated in harsh, dusty or wet environments, inspect
after every use.

Warning: To avoid risk of electric shock, do not perform service of any type to the instrument or any accessory.
Instrument Disposal
This instrument is equipped with non-user serviceable
Nickel Metal Hydride batteries. Should this instrument
need to be disposed of, please consult your local regulations as to the standard disposal procedures.

The instrument should be inspected and cleaned periodically. Inspect the front panel connectors for dirt,
broken or deformed insulation and contacts. Clean or
replace as necessary.

36

SECTION 7: SPECIFICATIONS
Specifications for Model 1205CXA

Display:
320 x 240 dot-matrix liquid crystal display with
cathode fluorescent (CFL) backlighting.

Physical - Instrument Only
Height: 9.75 inches (25 cm)
Width:
10.5 inches (27 cm)
Depth: 5 inches (27 cm)
Weight: 6 pounds (2.72 kg)

Power:
Battery: Internal, rechargeable, 7.2V Nickel Metal
Hydride
Charging Source: External 12 VAC transformer, 1.3 A
Operating Time: greater than 6 hours, continuous
without
backlight operating

Physical with nylon carry case and accessories
Height: 15 in (38 cm)
Width:
21 in (53 cm)
Depth: 6.5 in (16 cm)
Weight: 11 lb. (5.1 kg)

Output Signal:
Sub-nanosecond, 2nsec, 25nsec, 100nsec, and
500nsec

Environmental:
Operating Temperature: 00 C to 500 C (320 F to 1220 F)
Storage Temperature: -200 C to 600 C (-40 F to 1400 F)
Humidity: 95% maximum relative, non-condensing

Horizontal Resolution:
< 2,000 feet (610m):
<0.05ft. (0.03 m) at 99.9% VOP
<0.02 ft. (0.01 m) at 30.0% VOP
>2,000 feet (610m):1 foot (0.1m) at any VOP

Distance Accuracy:
+/-0.1ft (+/-0.03m) plus (+/-0.01% of reading)
Maximum Range
63,700 ft. (19,400 m) at 99% VOP
51,500 ft (16.4 km) at 80% VOP
Range varies with VOP. Maximum testable cable
lengths varies with pulse width and cable type.

Vertical Resolution
14 bits with 170 dots displayed.
Vertical Sensitivity: Greater than 65dB
Waveform Storage: (6144 samples/waveform)
Standard:
8 SUPER-STORE
waveforms
Standard:
32 SUPER-STORE
waveforms
Optional: 32 SUPER-STORE waveforms
37

Software Noise Filters:
Standard: 8x Averaging, 50/60 Hz, and AutoSoftware Noise Filters:
Filter
4x, 8x,
16x, 32x,
128x64x,
Averaging,
50/60Hz
Optional:
4x, 64x,
16x, 32x,
128x Averaging
and Auto-Filter.
Input Protection:
Input Protection:
400V (AC+DC) from DC to 400 Hz, decreasing to
400V (AC+DC) from DC to 400 Hz, decreasing to
10V
10V
at 1MHz.
at
1MHz.
Velocity of Propagation: Two user-selectable display
formats
VOP (%) with 3 digit precision ranging from 30.0% to
99.9%
V/2 with 4 digit precision (feet or meters per
microsecond) ranging from 45.0 to 148.0 in meters
mode or from 148.0 to 487.0 in feet mode
Standard Accessories:
Operator’s manual, battery charger, accessory
bag, shoulder strap, BNC/F adapter, WAVEVIEW Software disks, RS-232 cable, RG-59
push-on probe, COAX VOP card
Optional Accessories:
Extended
storage, case,
extended
filters,lighter
Strand
hooks,waveform
softside carrying
12Vnoise
cigarette
strand hooks, softside carrying case, 12V cigarette
charger.
lighter charger, extended warranty.
38

APPENDIX A
Serial I/O Printer Port Connection
Epson LQ-860 Emulation
Model 1205CXA can interface to an Epson LQ-860
type printer through the Epson LQ-860 command set.
Serial communication parameters: no parity, two-stop
bits, and 9,600 baud.
Citizen PN60 Pocket Printer
Model 1205CXA interfaces to the Citizen PN60
Pocket Printer through the Epson LQ-860 command
set. The printer setup parameters are as follows:
English
Language:
Font:
Roman
Font Lock:
Off
Line Spacing:
6 LPI
Character Set:
Italics
Code Page:
USA
Space Skip:
Enable
Stylewriter:
Auto
Protocol:
DTR
Emulation:
Epson
Pitch:
10 CPI
Compress:
Off
Form Length:
11 letters
Slash Zero:
On
Internal Char Set:
USA
Auto LF:
Off
Power Off:
3 minutes
Baud Rate:
9,600

APPENDIX B
VOP Table
CATV
CABLE
VOP
Belden		
RG-59 Foam .78
Solid
.66

CABLE		VOP
Scientific Atlanta
RG-59
Trunk

Capscan		
Times Fiber
RG-59
.82
RG-59
CC
.88
T 4, 6, & 10
		
TR+
Commscope		
TX,TX10
Trunk/Dist PIII .87
RG-6, 11, & 59
QR
.88
Dynafoam
Drop PIII
.82 		
QR
.88
		
CZ Labs		
RG-59
.82
		
General Cable
RG-59
.82
MC2
.93
39

Trunk / Feeder
Drop (foam 59, 6,& 11)
7 Series
MC2

.81
.87
.83
.87
.87
.89
.82
.90
.83
.82
.93
.93

INDEX
A
Accessories 37
Application notes 22

I
Impedance 19
Instrument disposal 35

B
Backlight 6
Battery charger 17
Battery Level Indicator 8

K
Keypad 6

C
Cable check 18
Cable connection 18
Charging 17
Cursors 11
D
Display 7
Display modes 12
Distance markers 8
F
Features 3
Filters 9
Front panel 5
H
Horizontal zoom 11

L
Liquid crystal display 7
M
Maintenance 35
Menu 9, 10
O
Operation 10
Operation Theory 4
P
Pulse Width 20
Printer 38

R
Range 10
Recall 15
RS-232 18
40

S
Service 35
Set-up options 14
Start-up 18
Storage 15
Specifications 36
V
Velocity of propagation
19
Vertical gain 14
W
Warnings 2
Waveform examples 27
Z
Zoom Controls 14

WARRANTY
Subject to the conditions set out herein, Radiodetection Limited expressly and exclusively provides the following warranty to original end user buyers of Radiodetection products.
Radiodetection hereby warrants that its products shall be free from defects in material and workmanship for 1 year starting from point of sale to end customer. Extensions of this
warranty period may be available where the same terms and conditions apply.

Statement of warranty conditions
The sole and exclusive warranty for any Radiodetection product found to be defective is repair or replacement of the defective product at Radiodetection’s sole discretion. Repaired
parts or replacement products will be provided by Radiodetection on an exchange basis and will be either new or refurbished to be functionally equivalent to new.
In the event this exclusive remedy is deemed to have failed of its essential purpose, Radiodetection’s liability shall not exceed the purchase price of the Radiodetection product. In
no event will Radiodetection be liable for any direct, indirect, special, incidental, consequential or punitive damages (including lost profit) whether based on warranty, contract, tort
or any other legal theory.
Warranty services will be provided only with the original invoice or sales receipt (indicating the date of purchase, model name and dealer’s name) within the warranty period. This
warranty covers only the hardware components of the Radiodetection product.
Before a unit is submitted for service or repair, under the terms of this warranty or otherwise, any data stored on the unit should be backed-up to avoid any risk of data loss.
Radiodetection will not be responsible for loss or erasure of data storage media or accessories.
Radiodetection is not responsible for transportation costs and risks associated with transportation of the product. The existence of a defect shall be determined by Radiodetection
in accordance with procedures established by Radiodetection.
This warranty is in lieu of any other warranty, express or implied, including any implied warranty of merchantability or fitness for a particular purpose.

This warranty does not cover:
a. Periodic maintenance and repair or parts replacement due to wear and tear.
b. Consumables (components that are expected to require periodic replacement during the lifetime of a product such as non rechargeable batteries, bulbs, etc.).
c. Damage or defects caused by use, operation or treatment of the product inconsistent with its intended use.
d. Damage or changes to the product as a result of:
i

Misuse, including: - treatment resulting in physical, cosmetic or surface damage or changes to the product or damage to liquid crystal displays.

ii Failure to install or use the product for its normal purpose or in accordance with Radiodetection instructions on installation or use.
iii Failure to maintain the product in accordance with Radiodetection instructions on proper maintenance.
iv Installation or use of the product in a manner inconsistent with the technical or safety laws or standards in the country where it is installed or used.
v Virus infections or use of the product with software not provided with the product or incorrectly installed software.
vi The condition of or defects in systems with which the product is used or incorporated except other ‘Radiodetection products’ designed to be used with the product.
vii Use of the product with accessories, peripheral equipment and other products of a type, condition and standard other than prescribed by Radiodetection.
viii Repair or attempted repair by persons who are not Radiodetection warranted and certified repair houses.
ix Adjustments or adaptations without Radiodetection’s prior written consent, including:
i

upgrading the product beyond specifications or features described in the instruction manual, or

ii modifications to the product to conform it to national or local technical or safety standards in countries other than those for which the product was specifically designed
and manufactured.
x Neglect e.g. opening of cases where there are no user replaceable parts.
xi Accidents, fire, liquids, chemicals, other substances, flooding, vibrations, excessive heat, improper ventilation, power surges, excess or incorrect supply or input voltage,
radiation, electrostatic discharges including lightning, other external forces and impacts.

Global locations
Radiodetection (USA)
28 Tower Road, Raymond, Maine 04071, USA
Tel: +1 (207) 655 8525 Toll Free: +1 (877) 247 3797 rd.sales.us@spx.com www.radiodetection.com
Pearpoint (USA)
39-740 Garand Lane, Unit B, Palm Desert, CA 92211, USA
Tel: +1 800 688 8094 Tel: +1 760 343 7350 pearpoint.sales.us@spx.com www.pearpoint.com
Radiodetection (Canada)
344 Edgeley Boulevard, Unit 34, Concord, Ontario L4K 4B7, Canada
Tel: +1 (905) 660 9995 Toll Free: +1 (800) 665 7953 rd.sales.ca@spx.com www.radiodetection.com
Radiodetection Ltd. (UK)
Western Drive, Bristol, BS14 0AF, UK Tel: +44 (0) 117 976 7776 rd.sales.uk@spx.com www.radiodetection.com
Radiodetection (France)
13 Grande Rue, 76220, Neuf Marché, France Tel: +33 (0) 2 32 89 93 60 rd.sales.fr@spx.com http://fr.radiodetection.com
Radiodetection (Benelux)
Industriestraat 11, 7041 GD ’s-Heerenberg, Netherlands Tel: +31 (0) 314 66 47 00 rd.sales.nl@spx.com http://nl.radiodetection.com
Radiodetection (Germany)
Groendahlscher Weg 118, 46446 Emmerich am Rhein, Germany
Tel: +49 (0) 28 51 92 37 20 rd.sales.de@spx.com http://de.radiodetection.com
Radiodetection (Asia-Pacific)
Room 708, CC Wu Building, 302-308 Hennessy Road, Wan Chai, Hong Kong SAR, China
Tel: +852 2110 8160 rd.sales.asiapacific@spx.com www.radiodetection.com
Radiodetection (China)
13 Fuqianyi Street, Minghao Building D304, Tianzhu Town, Shunyi District, Beijing 101312, China Tel: +86 (0) 10 8146 3372
rd.service.cn@spx.com http://cn.radiodetection.com
Radiodetection (Australia)
Unit H1, 101 Rookwood Road, Yagoona NSW 2199, Australia Tel: +61 (0) 2 9707 3222 rd.sales.au@spx.com www.radiodetection.com
Copyright © 2017 Radiodetection Ltd. All rights reserved. Radiodetection is a subsidiary of SPX Corporation. Radiodetection is a registered trademark of Radiodetection in the United States and/or other countries. Due to a
policy of continued development, we reserve the right to alter or amend any published specification without notice. This document may not be copied, reproduced, transmitted, modified or used, in whole or in part, without the
prior written consent of Radiodetection Ltd.



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