UBS Axcera CU0TD 5, CU3TD User Manual

Instruction Manual

Innovator,

CU0TD-1/CU0RD-1, 5 Watt –

CU4TD/CU4RD, 2500 Watt

UHF, ATSC Transmitter/
Regenerative Translator

Axcera, LLC

103 Freedom Drive • P.O. Box 525 • Lawrence, PA 15055-0525, USA

Phone: [phone] • Fax: [phone]

www.axcera.com • [e-mail]

RESTRICTIONS ON USE, DUPLICATION OR DISCLOSURE

OF PROPRIETARY INFORMATION

This document contains information proprietary to Axcera, to its affiliates or to a third party to
which Axcera may have a legal obligation to protect such information from unauthorized
disclosure, use or duplication. Any disclosure, use or duplication of this document or any of the
information herein for other than the specific purpose for which it was disclosed by Axcera is
expressly prohibited, except as Axcera may otherwise agree in writing. Recipient by accepting this
document agrees to the above stated conditional use of this document and this information
disclosed herein.

Copyright © 2011, Axcera, LLC

Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD Table of Contents
ATSC Transmitter/Regenerative Translator

Table of Contents

Introduction ......................................................................................................1

Manual Overview ............................................................................................1

Axcera Numbering System Explanation .............................................................1

Assembly Designators .....................................................................................2

Safety ...........................................................................................................2

Contact Information ........................................................................................3

Return Material Procedure ...............................................................................3

Limited One Year Warranty for Axcera Products..................................................4

System Description ..........................................................................................11

Optional Dual Exciter System w/Axciter Modulator Trays ................................14

Unpacking, Installation and Maintenance ............................................................17

Unpacking ...................................................................................................17

Installation ..................................................................................................17

Drawer Slide Installation ............................................................................18

AC Input Connections .......................................................................................19

Input and Output Connections ...........................................................................20

J11 Power Monitoring Connections .....................................................................22

Maintenance ................................................................................................24

Initial On Site Turn On Procedure.......................................................................27

Typical System Operating Parameters ................................................................28

Typical Problems, Indications and Causes in CU0TD/RD-2 or -3 Drawer ..................29

LCD Display and Front Panel LED Indicators ........................................................29

System Remote Connections to J12....................................................................31

LCD Front Panel Screens...................................................................................32

Operation Screens ........................................................................................34

Set Up Screens ............................................................................................41

(Optional) Innovator CXB Series Web Ethernet Interface Kit (1313100).................. 49

(Optional) Innovator CXB Series SNMP Ethernet Interface (1313079) .....................54

Circuit Descriptions of Boards in the CU0TD/RD-1 thru CU0TD/RD-5 Systems .........55

(A1) 8 VSB Demodulator Board (1308275) ......................................................55

Overview..................................................................................................55

Microcontroller Functions............................................................................55

Jumper and DIP Switch Settings..................................................................55

(A2) Digital Modulator (1316332) ...................................................................56

SMPTE-310 or ASI input.............................................................................56

Channel Coder ..........................................................................................56

Analog Output Section ...............................................................................56

Pilot Frequency Generation.........................................................................56

Voltage Requirements ................................................................................57

(A5) ALC Board, Innovator CX Series (1315006 or 1308570) .............................57

(A6) Amplifier Assembly (1309621) – Used in the CU0TD/RD-1..........................59

(A6-A1) 2 Stage UHF Amplifier Board, 24V (1309608) ...................................59

(A6) Amplifier Assembly (1315008 used w/External Axciter Drawer or 1312566

used in all other applications) – Used in the CU0TD/RD-2 and CU0TD/RD-3...... 59

(A6-A1) 2 Stage UHF Amplifier Board (1308784) ..........................................59

(A6-A2) RF Module Pallet, Philips, High Output (1309580)..............................60

(A6) Amplifier Assembly w/878 devices (1312191) – Used in the CU0TD/RD-4 &

CU0TD/RD-5 ................................................................................................60

(A6-A1) 1 Watt UHF Amplifier Module (1310282) ..........................................60

(A6-A2) BL871 Single Stage Amplifier Board (1311041).................................60

(A6-A3) Dual 878 Pallet Assembly (1313170 or 1310138) ..............................61

Instruction Manual, Rev. 1 i 10/19/11

Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD Table of Contents
ATSC Transmitter/Regenerative Translator

(A6) Amplifier Assembly w/888A devices (1316132 used w/External Axciter Drawer
or 1315381 used in all other applications) – Used in the CU0TD/RD-4 & CU0TD/RD-

5 ................................................................................................................61

(A6-A1) 1 Watt UHF Amplifier Module (1315730) ..........................................61

(A6-A2) BLF881 Single Stage Amplifier Board (1314882) ...............................61

(A6-A3) Dual BLF888A Pallet Assembly (1315347) ........................................62

(A6-A5) DC/DC Converter Board (1315335) .................................................62

(A7) Output Detector Board (1308685 or 1312207 in the CU0TD/RD-2 thru

CU0TD/RD-5)...............................................................................................62

(A8) Control Card, Innovator CX (1312543) .....................................................62

(A9 & A10) Power Supplies used in CU0TD/RD-1 thru CU0TD/RD-5 and Driver for

CU1TD/RD-1 & higher power..........................................................................63

Circuit Description of External System Metering Board which is only used in

Transmitters with multiple external Amplifier Drawers ..........................................64

(A5) System Metering Board (1312666) ..........................................................64

Circuit Descriptions of Boards in the external ATSC Amplifier Drawers ....................65

(A7) Amplifier Control Board (1315011 or 1312260) .........................................65

(A10) Current Metering Board (1309130) ........................................................65

(A5) 2 Way Splitter Board (1313158), in Amplifier Drawer w/two Dual 888A Pallets

..................................................................................................................66

(A5) 4 Way Splitter Board (1308933), in multiple pallet amplifier drawer ............66

(A1-A4) 878A Amplifier Pallets (1314098, 1313170 or 1310138)........................ 66

Or (A1-A2) Dual 888A Amplifier Pallets (1314173) Used in two pallet Amplifier

Drawer (CB005715) ......................................................................................66

(A1-A4) 888A Amplifier Pallets (1315347) Used in three pallet Amplifier Drawers . 66
(A6) 2 Way Combiner Board (1313155), in amplifier drawer w/two Dual 888A

Pallets.........................................................................................................67

(A6) 4 Way Combiner Board (1312368), in two pallet amplifier drawer ............... 67

(A8 & A9) One, two & three pallet Amplifier Drawer Power Supplies ....................67

System Set Up Procedure ...................................................................................1

ALC Board Set-Up, Forward and Reflected Power Calibration for CU0TD/RD-1 thru

CU0TD/RD-5 Systems .....................................................................................2

Forward and Reflected Power Calibration of a CU1TD/RD-1 and Higher Power

Systems with one or more External Amplifier Drawers.........................................3

Instruction Manual, Rev. 1 ii 10/19/11

Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD Introduction
ATSC Transmitter/Regenerative Translator

Introduction

Manual Overview

This manual contains the description of the Innovator CU0TD-1/CU0RD-1 –
CU4TD/CU4RD Transmitter/Regenerative Translator and the circuit descriptions of the
boards, which make up the system. The manual also describes the installation, setup
and alignment procedures for the system. Appendix A of this manual contains the
system level drawings for the Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD ATSC
Transmitter/Regenerative Translator System that was purchased. NOTES: Information
and drawings on the Axciter Digital Modulator, if part of your system, are contained in
the separate Axciter Instruction Manual. Information and drawings on the Universal
Modulator Drawer and Adaptive Precorrector Drawer, if part of your system, are
contained in the separate Universal Modulator Drawer and Adaptive Precorrector Drawer
Instruction Manuals. If your system contains dual exciters with a remote interface panel
and Exciter control panel, information and drawings on the system and panels are
contained in the separate remote interface panel instruction manual. Information on the
K-Tech Receiver or Signal Converter, if part of your system, is contained in the separate
manufacturers supplied manuals.

Axcera Numbering System Explanation

The Axcera numbering system is explained as follows. The following example is for a
CU0TC-3 Transmitter system.

C – CX Series
U – UHF Frequency Band
0 or X - Number of external Power Amplifier drawers
T - Transmitter, L - Echo cancelling repeater, R - Regenerative translator
C - COFDM (DVB-T/H/T2), I - ISDB-T, D - ATSC, No letter or blank means analog.

-3 = 50W or (861 devices), -2 = 30W or (861 devices with smaller power supply), -1 =
3W or 5W depending on the modulation. -4 = 888A. For ATSC there is also a -5 at
150W output but it is the same as the -4.

The following example is for a power amplifier drawer CUBP888A-4.

1 | 2 | 3 | 4 | 5 | - | 6 | - | 7 |

C U B P 888A - 4

Position Chars Description

1 1 Transmitter Line (C=CX, 6=6X, H=HX)
2 1 or 2 Frequency Band (U=UHF, HV=HB VHF, LV=LB VHF, etc.)
3 1 Version (ex. A-line, B-line, etc. - typically matches
transmitter model version)
4 1 Use (E=Exciter/Driver, P=PA)
5 up to 4 Transistor number (might need to abbreviate)
6 1 or 2 Number of transistors in final output stage
7 up to 4 Additional field to include other important info
(ex. distinguish bet single or N+1 supplies, or other things
not covered in the number

CUBP888A-4: Line C, Frequency UHF, Version B, Use PA, Transistor Number
888A, number of transistors in final output stage 4.

Instruction Manual, Rev. 1 1

Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD Introduction
ATSC Transmitter/Regenerative Translator

Assembly Designators

Axcera has assigned assembly numbers, Ax designations such as A1, where x=1,2,3…etc,
to all assemblies, modules, and boards in the system. These designations are referenced
in the text of this manual and shown on the block diagram and interconnect drawings
provided in Appendix A.

The cables that connect between the boards within a drawer or assembly and that
connect between the drawers, racks and cabinets are labeled using markers. Figure 1 is
an example of a marked cable. There may be as few as two or as many as four Markers
on any one cable. These markers are read starting farthest from the connector. If there
are four Markers, the marker farthest from the connector is the system number such as
system 1 or translator 2. The next or the farthest Marker is the rack or cabinet “A”
number on an interconnect cable or the board “A” number when the cable is within a
drawer. The next number on an interconnect cable is the Drawer location or Board “A”
number. The marker closest to the connector is the jack or connector “J” number on an
interconnect cable or the jack or connector “J” number on the board when the cable is
within a drawer.

4 3 2 1

Marker Identification Drawing

Safety

The Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD ATSC Transmitter/Regenerative
Translator systems manufactured by Axcera are designed to be easy to use and repair
while providing protection from electrical and mechanical hazards. Please review the
following warnings and familiarize yourself with the operation and servicing procedures
before working on the system.

Hazardous Accessibility – Axcera has made attempts to provide appropriate
connectors, wiring and shields to minimize hazardous accessibility.

Circuit Breakers and Wiring – All circuit breakers and wire are UL and CE certified and
are rated for maximum operating conditions.

Single Point Breaker or Disconnect - The customer should provide a single point
breaker or disconnect at the breaker box for the main AC input connection to the
transmitter.

Transmitter Ratings - The transmitter ratings are provided in the text of this manual
along with voltage and current values for the equipment.

Protective Earthing Terminal – A main protective earthing terminal is provided for
equipment required to have protective earthing.

Read All safety Instructions – All of the safety instructions should be read and
understood before operating this equipment.

Retain Manuals – The manuals for the system should be retained at the system site for
future reference. Axcera provides two manuals for this purpose; one manual can be left
at the office while the other can be kept at the site.

Instruction Manual, Rev. 1 2

Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD Introduction
ATSC Transmitter/Regenerative Translator

Heed all Notes, Warnings, and Cautions – All of the notes, warnings, and cautions
listed in this safety section and throughout the manual must be followed.

Follow Operating Instructions – All of the operating and use instructions for the
system should be followed.

Cleaning – Unplug or otherwise disconnect all power from the equipment before cleaning.
Do not use liquid or aerosol cleaners. Use only a damp cloth for cleaning.

Ventilation – Openings in the cabinet and module front panels are provided for
ventilation. To ensure the reliable operation of the system, and to protect the unit from
overheating, these openings must not be blocked.

Servicing – Do not attempt to service this product yourself until becoming familiar with
the equipment. If in doubt, refer all servicing questions to qualified Axcera service
personnel.

Replacement Parts – When replacement parts are used, be sure that the parts have the
same functional and performance characteristics as the original part. Unauthorized
substitutions may result in fire, electric shock, or other hazards. Please contact the
Axcera Technical Service Department if you have any questions regarding service or
replacement parts.

Contact Information

The Axcera Field Service Department can be contacted by PHONE at 724-873-8100 or by
FAX at 724-873-8105.

Before calling Axcera, please be prepared to supply the Axcera technician with answers to
the following questions. This will save time and help ensure the most direct resolution to
the problem.

1. What are your Name and the Call Letters for the station?

2. What are the model number and type of system?

3. Is the system digital or analog?

4. How long has the system been on the air? (Approximately when was the system
installed?)

5. What are the symptoms being exhibited by the system? Include the current front
panel LCD readings and what the status LED is indicating on the front panel of
the drawer. If possible, include the LCD readings before the problem occurred.

Return Material Procedure

To insure the efficient handling of equipment or components that have been returned for
repair, Axcera requests that each returned item be accompanied by a Return Material
Authorization Number (RMA#). The RMA# can be obtained from any Axcera Field
Service Engineer by contacting the Axcera Field Service Department at 724-873-8100 or
by Fax at 724-873-8105. This procedure applies to all items sent to the Field Service
Department regardless of whether the item was originally manufactured by Axcera.

When equipment is sent to the field on loan, the RMA# is included with the unit. The RMA#
is intended to be used when the unit is returned to Axcera. In addition, all shipping
material should be retained for the return of the unit to Axcera.

Instruction Manual, Rev. 1 3

Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD Introduction
ATSC Transmitter/Regenerative Translator

Replacement assemblies are also sent with the RMA# to allow for the proper routing of the
exchanged hardware. Failure to close out this type of RMA# will normally result in the
customer being invoiced for the value of the loaner item or the exchanged assembly.

When shipping an item to Axcera, please include the RMA# on the packing list and on the
shipping container. The packing slip should also include contact information and a brief
description of why the unit is being returned.
Please forward all RMA items to:

Axcera, LLC

103 Freedom Drive

P.O. Box 525

Lawrence, PA 15055-0525 USA

For more information concerning this procedure, call the Axcera Field Service Department
at 724-873-8100.

Axcera can also be contacted through e-mail at [e-mail] and on the Web at

www.axcera.com.

Limited One Year Warranty for Axcera Products

Axcera warrants each new product that it has manufactured and sold against defects in
material and workmanship under normal use and service for a period of one (1) year
from the date of shipment from Axcera's plant, when operated in accordance with
Axcera's operating instructions. This warranty shall not apply to tubes, fuses, batteries,
bulbs or LEDs.

Warranties are valid only when and if (a) Axcera receives prompt written notice of
breach within the period of warranty, (b) the defective product is properly packed and
returned by the buyer (transportation and insurance prepaid), and (c) Axcera
determines, in its sole judgment, that the product is defective and not subject to any
misuse, neglect, improper installation, negligence, accident, or (unless authorized in
writing by Axcera) repair or alteration. Axcera's exclusive liability for any personal
and/or property damage (including direct, consequential, or incidental) caused by the
breach of any or all warranties, shall be limited to the following: (a) repairing or
replacing (in Axcera's sole discretion) any defective parts free of charge (F.O.B. Axcera’s
plant) and/or (b) crediting (in Axcera's sole discretion) all or a portion of the purchase
price to the buyer.

Equipment furnished by Axcera, but not bearing its trade name, shall bear no warranties
other than the special hours-of-use or other warranties extended by or enforceable
against the manufacturer at the time of delivery to the buyer.

NO WARRANTIES, WHETHER STATUTORY, EXPRESSED, OR IMPLIED, AND NO
WARRANTIES OF MERCHANTABILITY, FITNESS FOR ANY PARTICULAR
PURPOSE, OR FREEDOM FROM INFRINGEMENT, OR THE LIKE, OTHER THAN AS
SPECIFIED IN PATENT LIABILITY ARTICLES, AND IN THIS ARTICLE, SHALL
APPLY TO THE EQUIPMENT FURNISHED HEREUNDER.

Instruction Manual, Rev. 1 4

Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD Introduction
ATSC Transmitter/Regenerative Translator

 HIGH VOLTAGE 

DO NOT ATTEMPT TO REPAIR OR TROUBLESHOOT THIS EQUIPMENT UNLESS
YOU ARE FAMILIAR WITH ITS OPERATION AND EXPERIENCED IN
SERVICING HIGH VOLTAGE EQUIPMENT. LETHAL VOLTAGES ARE PRESENT
WHEN POWER IS APPLIED TO THIS SYSTEM. IF POSSIBLE, TURN OFF
POWER BEFORE MAKING ADJUSTMENTS TO THE SYSTEM.

 RADIO FREQUENCY RADIATION HAZARD 

MICROWAVE, RF AMPLIFIERS AND TUBES GENERATE HAZARDOUS RF
RADIATION THAT CAN CAUSE SEVERE INJURY INCLUDING CATARACTS,
WHICH CAN RESULT IN BLINDNESS. SOME CARDIAC PACEMAKERS MAY BE
AFFECTED BY THE RF ENERGY EMITTED BY RF AND MICROWAVE
AMPLIFIERS. NEVER OPERATE THE TRANSMITTER SYSTEM WITHOUT A
PROPERLY MATCHED RF ENERGY ABSORBING LOAD OR THE ANTENNA
ATTACHED. KEEP PERSONNEL AWAY FROM OPEN WAVEGUIDES AND
ANTENNAS. NEVER LOOK INTO AN OPEN WAVEGUIDE OR ANTENNA.
MONITOR ALL PARTS OF THE RF SYSTEM FOR RADIATION LEAKAGE AT
REGULAR INTERVALS.

 WARNING!!!

Instruction Manual, Rev. 1 5

Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD Introduction
ATSC Transmitter/Regenerative Translator

EMERGENCY FIRST AID INSTRUCTIONS

Personnel engaged in the installation, operation, or maintenance of this equipment are
urged to become familiar with the following rules both in theory and practice. It is the
duty of all operating personnel to be prepared to give adequate Emergency First Aid and
thereby prevent avoidable loss of life.

RESCUE BREATHING

1. Find out if the person is
breathing.

You must find out if the
person has stopped breathing.
If you think he is not
breathing, place him flat on
his back. Put your ear close to
his mouth and look at his
chest. If he is breathing you
can feel the air on your
cheek. You can see his chest
move up and down. If you do
not feel the air or see the
chest move, he is not
breathing.

SKIN REDDENED: Apply ice cold water to
burned area to prevent burn from going
deeper into skin tissue. Cover area with a
clean sheet or cloth to keep away air. Consult
a physician.

SKIN BLISTERED OR FLESH CHARRED:
Apply ice cold water to burned area to
prevent burn from going deeper into skin
tissue.

2. If he is not breathing,
open the airway by tilting his
head backwards.

Lift up his neck with one
hand and push down on his
forehead with the other. This
opens the airway. Sometimes
doing this will let the person
breathe again by himself.

BURNS

Cover area with clean sheet or cloth to keep
away air. Treat victim for shock and take to
hospital.

EXTENSIVE BURN - SKIN BROKEN: Cover
area with clean sheet or cloth to keep away
air. Treat victim for shock and take to
hospital.

3. If he is still not breathing,
begin rescue breathing.

-Keep his head tilted
backward. Pinch nose shut.

-Put your mouth tightly over
his mouth.

-Blow into his mouth once
every five seconds

-DO NOT STOP rescue
breathing until help arrives.

LOOSEN CLOTHING - KEEP
WARM

Do this when the victim is
breathing by himself or help
is available. Keep him as
quiet as possible and from
becoming chilled. Otherwise
treat him for shock.

Instruction Manual, Rev. 1 6

Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD Introduction
ATSC Transmitter/Regenerative Translator

dBm, dBw, dBmV, dBµµµµV, & VOLTAGE

EXPRESSED IN WATTS

50 Ohm System

WATTS PREFIX dBm dBw dBmV dBµV VOLTAGE

1,000,000,000,000 1 TERAWATT +150 +120
100,000,000,000 100 GIGAWATTS +140 +110
10,000,000,000 10 GIGAWATTS +130 +100
1,000,000,000 1 GIGAWATT +120 + 99
100,000,000 100 MEGAWATTS +110 + 80
10,000,000 10 MEGAWATTS +100 + 70
1,000,000 1 MEGAWATT + 90 + 60
100,000 100 KILOWATTS + 80 + 50
10,000 10 KILOWATTS + 70 + 40
1,000 1 KILOWATT + 60 + 30
100 1 HECTROWATT + 50 + 20
50 + 47 + 17
20 + 43 + 13
10 1 DECAWATT + 40 + 10
1 1 WATT + 30 0 + 77 +137 7.07V

0.1 1 DECIWATT + 20 - 10 + 67 +127 2.24V

0.01 1 CENTIWATT + 10 - 20 + 57 +117 0.707V

0.001 1 MILLIWATT 0 - 30 + 47 +107 224mV

0.0001 100 MICROWATTS - 10 - 40

0.00001 10 MICROWATTS - 20 - 50

0.000001 1 MICROWATT - 30 - 60

0.0000001 100 NANOWATTS - 40 - 70

0.00000001 10 NANOWATTS - 50 - 80

0.000000001 1 NANOWATT - 60 - 90

0.0000000001 100 PICOWATTS - 70 -100

0.00000000001 10 PICOWATTS - 80 -110

0.000000000001 1 PICOWATT - 90 -120

TEMPERATURE CONVERSION

°°°°F = 32 + [(9/5) °°°°C]

°°°°C = [(5/9) (°°°°F - 32)]

Instruction Manual, Rev. 1 7

Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD Introduction
ATSC Transmitter/Regenerative Translator

USEFUL CONVERSION FACTORS

TO CONVERT FROM TO MULTIPLY BY

mile (US statute) kilometer (km) 1.609347
inch (in) millimeter (mm) 25.4
inch (in) centimeter (cm) 2.54
inch (in) meter (m) 0.0254
foot (ft) meter (m) 0.3048
yard (yd) meter (m) 0.9144
mile per hour (mph) kilometer per hour(km/hr) 1.60934
mile per hour (mph) meter per second (m/s) 0.44704
pound (lb) kilogram (kg) 0.4535924
gallon (gal) liter 3.7854118
U.S. liquid
(One U.S. gallon equals 0.8327 Canadian gallon)
fluid ounce (fl oz) milliliters (ml) 29.57353
British Thermal Unit watt (W) 0.2930711
per hour (Btu/hr)
horsepower (hp) watt (W) 746

NOMENCLATURE OF FREQUENCY BANDS

FREQUENCY RANGE DESIGNATION

3 to 30 kHz VLF - Very Low Frequency
30 to 300 kHz LF - Low Frequency
300 to 3000 kHz MF - Medium Frequency
3 to 30 MHz HF - High Frequency
30 to 300 MHz VHF - Very High Frequency
300 to 3000 MHz UHF - Ultrahigh Frequency
3 to 30 GHz SHF - Superhigh Frequency
30 to 300 GHz EHF - Extremely High Frequency

LETTER DESIGNATIONS FOR UPPER FREQUENCY BANDS

LETTER FREQ. BAND

L 1000 - 2000 MHz
S 2000 - 4000 MHz
C 4000 - 8000 MHz
X 8000 - 12000 MHz
Ku 12 - 18 GHz
K 18 - 27 GHz
Ka 27 - 40 GHz
V 40 - 75 GHz
W 75 - 110 GHz

Instruction Manual, Rev. 1 8

Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD Introduction

0

-10

-20

-30

-40

-50

-60

-70

S

dB

ATSC Transmitter/Regenerative Translator

RETURN LOSS VS. VSWR

R
E
T
U
R
N

L
O
S

1.001 1.01 1.1 2.0

VSWR

Instruction Manual, Rev. 1 9

Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD Introduction
ATSC Transmitter/Regenerative Translator

ABBREVIATIONS/ACRONYMS

AC: Alternating Current

AFC: Automatic Frequency
Control

ALC: Automatic Level Control

AM: Amplitude Modulation

AGC: Automatic Gain Control

ATSC: Advanced Television

Systems Committee (Digital)

AWG: American Wire Gauge

B/D: Block Diagram

BER: Bit Error Rate

BW: Bandwidth

COFDM: Coded Orthogonal Frequency

Division Multiplexing
modulation scheme.

CUBP888A-4: Line C, Frequency

UHF, Version B, Use PA,

Transistor Number 888A,
number of transistors in final
output stage 4.

DC: Direct Current

D/A: Digital to Analog

DSP: Digital Signal Processing

DTV: Digital Television

dB: Decibel

dBm: Decibel referenced to

1 milliwatt

dBmV: Decibel referenced to
1 millivolt

dBw: Decibel referenced to 1 watt

FEC: Forward Error Correction

FM: Frequency Modulation

FPGA: Field Programmable Gate

Array

Hz: Hertz

I/C: Interconnect

ICPM: Incidental Carrier Phase
Modulation

I/P: Input

IF: Intermediate Frequency

LED: Light emitting diode

LSB: Lower Sideband

LDMOS: Lateral Diffused Metal Oxide

Semiconductor Field Effect
Transistor

MPEG: Motion Pictures Expert
Group

NTSC: National Television
Systems Committee (Analog)

O/P: Output

PLL: Phase Locked Loop

PCB: Printed Circuit Board

QAM: Quadrature Amplitude

Modulation

RD: Regenerative
Translator, Digital

SMPTE: Society of Motion Picture
and Television Engineers

TD: Transmitter, Digital

VSB: Vestigial Side Band

Instruction Manual, Rev. 1 10

Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD System Description
ATSC Transmitter/Regenerative Translator

System Description

The Innovator CX Series Systems are of two different types. They are either
Regenerative Translators, example: CU3RD, or DTV Transmitters, example:
CU3TD. The Regenerative Translator (RD) accepts an RF On Channel signal (-79
to –8 dBm) and converts it to a DTV RF On Channel output signal. If an optional
preamp is present in your system it connects to the output of the receive antenna
and amplifies the weak signal approximately 20 dB. The DTV System (TD) takes
a SMPTE-310 Input and converts it to a DTV RF On Channel output signal. The
SMPTE-310 input can be from an ASI to S310 converter, a K-Tech Receiver
Drawer, an Axciter Drawer, a Universal Modulator Drawer or any other SMPTE­310 source. The output power level of either configuration is at 5, 30, 50, 100 or
150 Watts ATSC using a single drawer, at 250, 400 or 750 Watts ATSC using an
additional single amplifier drawer, at 1400 Watts ATSC with two Amplifier
drawers, at 2100 Watts ATSC with three Amplifier drawers, or at 2500 Watts
ATSC with four Amplifier drawers.

The Innovator CX Series system provides linear and nonlinear correction
capability for the transmission path as well as internal test sources that are used
during initial system installation. If your system contains the Optional Internal
GPS Kit, the output of the GPS Antenna connects to the J5 TNC connector on the
rear panel of the CXB drawer. This kit supplies 10 MHz and 1 pps references for
use in the CXB drawer.

The CU0TD-1 thru CU0TD-5 Innovator CX Series systems and the same drawer
used as driver for higher power transmitter systems contain the Digital Modulator
w/Power Conditioner (1309629) that is made up of (A2) the Digital Modulator
Board (1304883) and (A22) the Power Conditioner Board (1309404). The drawer
also contains (A3) the IF Precorrector Board (1308796), (A4) the Frequency Agile
Upconverter (1309695), and (A6) the Amplifier Assembly. The (A7) Output
Detector Board (1312207), (A8) the Innovator CX Control Board (1312543), (A9)
the +5V, ±12V Power Supply and (A10) the +24V/+28V/+32V/+39V/+48VDC
Power Supply are also contained in the drawer. To make the system a
regenerative translator, the RD kit (1310182) supplies the (A1) 8 VSB
Demodulator Board (1308275) to the drawer.

The type of (A6) Amplifier Assembly used in the drawer changes as the output
power of the system changes. The Amplifier Assembly (1309621) is used in
CU0TD/RD-1 systems, the Amplifier Assembly (1312566) is used in CU0TD/RD-2
and CU0TD/RD-3 systems and the Amplifier Assembly (1312191) is used in
CU0TD/RD-4 and CU0TD/RD-5 systems and the Amplifier Assembly (1315009) is
used in CU0TD/RD-4 and CU0TD/RD-5 systems with Axciters. The Amplifier
Assembly (1315381) is used in the CUBE888A-2 and the CUBE888A-2 w/8 VSB
Demodulator Board drawers. Also part of the amplifier assemblies are an ALC
Board (1315006, used with Axciter systems or 1308570, used with all other
systems).

The (A10) Power Supply Assembly also changes as the output power of the
system changes. A +24V Power Supply is used in CU0TD/RD-1 systems, a
+28V/300W Power Supply is used in CU0TD/RD-2 Systems, a +36V/600W Power
Supply operating at 30V is used in CU0TD/RD-3 systems and a +48V/1100W
Power Supply operating at 48V is used in CU0TD/RD-4 and CU0TD/RD-5
systems.

Instruction Manual, Rev. 1 11

Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD System Description
ATSC Transmitter/Regenerative Translator

When configured as an ATSC Transmitter (TD), the SMPTE-310 input at (J1),
from an ASI to S310 converter, a KETCH Receiver, an Axciter Drawer or any
other SMPTE-310 source, connects directly to the input jack (J42) on the (A2)
Digital Modulator Board (1304883). When configured to operate as a
Regenerative Translator (RD), the DTV ON Channel RF Input at (J1), (-8 to -79
dBm) connects to the Tuner Input Jack on (A1) the 8 VSB Modulator Board
(1308275) supplied with the (RD) kit. The 8 VSB Modulator Board (1308275)
converts the DTV input to a SMPTE-310 output at (J13) that connects to the input
jack (J42) on the (A2) Digital Modulator Board (1304883) in systems without an
Axciter drawer. The IF output of the 8 VSB modulator board connects to J2 on
the IF pre-corrector board (1308796). The IF Pre-Corrector Board provides ALC,
automatic or manual, gain control of the IF level. The board also supplies pre­correction Response, In Phase and Quadrature Non-Linear adjustments. The
board has the circuitry for ALC Fault, Input Fault and Modulation Fault monitoring
and indications. The IF from the IF precorrector board is connected to the digital
upconverter board (1309695) at J6.

In regenerative translator systems with an Axciter, the DTV ON Channel RF Input
at (J1), (-8 to -79 dBm) connects to the Tuner Input Jack on (A1) the 8 VSB
Modulator Board (1308275). The SMPTE-310 output of the board at J13 is wired
to J2 on the rear panel of the drawer. The SMPTE-310 is cabled to the SMPTE­310 input jack J27 on the Axciter drawer. The digital IF output of the Axciter at
J40 is cabled to J3 on the CU0RD-3 drawer that is wired to J6 on the digital
upconverter board. The rest of the drawer operates the same for both the RD
and the TD systems.

The digital upconverter takes the 44 MHz or 36 MHz IF signal and converts it to a
TV channel frequency in the range of 54-860 MHz. The RF on channel signal is
fed to the ALC Board, Innovator CX Series (1308570), which is used to control
the drive power to the RF amplifier chain in the CU0TD/RD-1, CU0TD/RD-2,
CU0TD/RD-3, CU0TD/RD-4 and CU0TD/RD-5 Transmitter/Translators. In a
CU0TD/RD-2 or CU0TD/RD-3, the RF is connected to the (A6) Amplifier Assembly
(1312566) that is made up of (A6-A1) the 2 Stage UHF Amplifier Board
(1308784) and (A6-A2) the RF Module Pallet w/Philips transistors (1300116).
The assembly has approximately 36 dB of gain. The amplified output at
approximately +38 dBm connects to the (A7) Output Detector Board (1308685 or

1312207) which provides forward (2V=100%) and reflected (2V=25%) power

samples to the CU Control Board (1312543) for metering and monitoring
purposes. An output power sample is also supplied to the front panel sample
jack J15, which is a 50 Ohm BNC type. The typical sample value in a CU50 is
approximately 60dB down from the output power level of the drawer. The RF
output is cabled to J2 the “N” connector RF output jack on the rear panel of the
drawer. In CU0TD/RD-1, CU0TD/RD-2, CU0TD/RD-3, CU0TD/RD-4 and
CU0TD/RD-5 systems the output connects to a digital mask filter, low pass filter
and then the antenna for your system. In CU1TD/RD-1, CU1TD/RD-2, and
CU1TD/RD-3 systems, the RF output, from the driver drawer, is connected to J1
on the rear panel of the amplifier drawer. The RF is cabled to J1 on the Amplifier
Heatsink Assembly in the amplifier drawer. In CU2TD/RD and higher power
systems the RF is connected to a splitter and then to the inputs of the amplifier
drawers.

The CU1TD/RD-1 ATSC system is made up of a Driver Drawer and a 250 Watt
ATSC Amplifier Drawer. The driver drawer connects to the 250 Watt Amplifier

Instruction Manual, Rev. 1 12

Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD System Description
ATSC Transmitter/Regenerative Translator

drawer and supplies the needed drive level to produce the 250 Watts output of
the system. The control and operating parameters of the 250 Watt Amplifier
Drawer are displayed on the LCD Screen on the driver drawer. In the 250 Watt
amplifier drawer, the RF input signal is at J1 on the rear panel of the drawer that
is cabled to J1 on the amplifier pallet. In a standard 250 Watt amplifier drawer, a
single +42VDC power supply provides the operating voltages, through the
current metering board, to the amplifier pallet. In a N+1 250 Watt amplifier
drawer, two +42VDC power supplies are diode-ord and provide the operating
voltages, through the current metering board, to the amplifier pallet. If one
power supply should malfunction, the other power supply will maintain the
necessary voltage to provide the 250 Watts output. The amplified output of the
pallet, which has approximately 15 dB gain, is connected to J2 the 7/16” (1.1cm)
Din RF output jack of the drawer. An output detector board supplies a forward
and a reflected power sample to the amplifier control board for metering and
monitoring purposes.

The standard CU1TD/RD-2 ATSC system is made up of a driver drawer and a 400
Watt Amplifier Drawer. The driver drawer output connects to the 400 Watt
Amplifier drawer and supplies the needed drive level to produce the 400 Watts
output of the system. The control and operating parameters of the 400 Watt
Amplifier Drawer are displayed on the LCD Screen on the driver drawer. In the
400 Watt Amplifier Drawer, the input RF signal at J1, located on the rear panel of
the drawer, is fed to J1 on the Splitter Board, which supplies two outputs, one to
each 888 amplifier pallet. Each amplifier pallet has approximately 14 dB gain.
The amplified outputs of the pallets are combined in the 2 Way combiner board
whose output is at J1. The RF is connected to J2 the 7/16” (1.1cm) Din RF
output jack located on the rear panel of the drawer. The 2 way combiner board
supplies a forward and a reflected power sample to the amplifier control board for
metering and monitoring purposes. In a 400 Watt amplifier drawer, the typical
sample value at J6, a 50Ω BNC jack located on the front panel of the drawer, is
approximately 65dB down from the output power level of the drawer.

The CU500 ATSC system w/two dual 888 pallets and Axciter is made up of a
CU30 w/Axciter Drawer and a 500 Watt Amplifier Drawer w/two dual 888 pallets.
The CU30 w/Axciter is used as a driver that connects to the CU500 Amplifier
drawer and supplies the needed drive level to produce the 500 Watts output of
the system. The control and operating parameters of the 500 Watt Amplifier
Drawer are displayed on the LCD Screen on the CU30 Drawer. In the CU500, the
input RF signal at J1, located on the rear panel of the drawer, is fed to J1 on the
2 Way Splitter Board, which supplies two outputs, one to each 888 amplifier
pallet. Each amplifier pallet has approximately 16 dB gain. The amplified
outputs of the pallets are combined in the 2 Way combiner board whose output is
at J1. The RF is connected to J2 the 7/16” (1.1cm) Din RF output jack located on
the rear panel of the drawer. The 2 way combiner board supplies a forward and
a reflected power sample to the amplifier control board for metering and
monitoring purposes. In a CU500, the typical sample value at J6, a 50Ω BNC
jack located on the front panel of the drawer, is approximately 65dB down from
the output power level of the drawer.

The CU1TD/RD-3, 750 Watt ATSC system is made up of a driver drawer and a
750 Watt Amplifier Drawer. The output of the driver drawer connects to the
Amplifier drawer and supplies the needed drive level to produce the 750 Watts
output of the system. The control and operating parameters of the amplifier

Instruction Manual, Rev. 1 13

Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD System Description
ATSC Transmitter/Regenerative Translator

drawer are displayed on the LCD Screen on the driver drawer. In the amplifier
drawer the input RF signal at J1, located on the rear panel of the drawer, is fed to
J1 on the 4 Way Splitter Board, which supplies four outputs, one to each 888A
amplifier pallet. Each amplifier pallet has approximately 15 dB gain. The
amplified outputs of the pallets are combined in the 4 Way combiner board whose
output is at J1. The RF is connected to J2 the 7/16” (1.1cm) Din RF output jack
located on the rear panel of the drawer. The 4 way combiner board supplies a
forward and a reflected power sample to the amplifier control board for metering
and monitoring purposes. The typical sample value at J6, a 50Ω BNC jack
located on the front panel of the drawer, is approximately 65dB down from the
output power level of the drawer.

In higher power systems, multiple amplifier drawers are used along with splitters
and combiners to produce the desired output. A System Metering Board
(1312666) provides forward, reflected, overtemperature and other parameters to
the exciter/driver drawer from the external power amplifier chain. The
CU2TD/RD is made up of a driver drawer, a two way splitter, two amplifier
drawers and a two way combiner with a reject load. The reject load provides
isolation protection of the operating power amplifier if the other amplifier fails.
One–half the power of the operating amplifier drawer connected to the combiner
will be dissipated by the reject load with the other half of the power going to the
output filters and the antenna. The CU3TD/RD is made up of a driver drawer, a
three way splitter, three amplifier drawers and a three way combiner with reject
load. The CU4TD/RD is made up of a driver drawer, a four way splitter, four
amplifier drawers and a four way combiner with reject load. The reject loads in
the multi-amplifier systems have thermal switches connected to them which
monitor the temperature of the load and provide the overtemperature fault, if it
occurs, through the system metering board to the exciter/driver drawer.

The On Channel RF output of the amplifier drawer either connects directly to the
digital mask filter and low pass filter and then to the antenna in single amplifier
systems or to a combiner, the digital mask filter, low pass filter, output coupler
and finally to the antenna in multiple amplifier systems. The output coupler
provides a forward and a reflected power sample to the system metering board
which detects the samples and supplies the forward and reflected power levels to
the exciter/driver drawer for use in the metering circuits.

Optional Dual Exciter System w/Axciter Modulator Trays

The typical optional Dual Exciter System contains a Remote Interface Unit, two
Axciter modulators, two CXB Exciter/Driver Assemblies, an Exciter Output
Routing Switch, a power amplifier tray, a pre filter coupler, a low pass filter, a
digital bandpass filter, a post filter coupler and an output coupler. The system
also contains two Axciter relays, two 2 way splitters, a signal routing board and
two system metering boards which generate forward and a reflected power
samples for metering purposes in the exciter/driver assemblies.

The Remote Interface Unit monitors that state of the exciters and provides
automatic exciter switching based on current conditions and operator inputs. The
two exciters are configured as either the main On-Air exciter or the back-up
exciter. Either exciter can be used as the selected main exciter and the other
exciter functions in a backup role if it is not faulted.

Instruction Manual, Rev. 1 14

Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD System Description
ATSC Transmitter/Regenerative Translator

NOTE: Information and drawings on the Axciter Modulator Drawer are

contained in the separate Axciter Instruction Manual.

Exciter 1 consists of the (A4) Axciter Modulator Tray, the (A2) Axciter Relay, the
(A1) Exciter/Driver Assembly Exciter 1, the (A3) system metering board and the
(A5) 2 way splitter.

Exciter 2 consists of the (A14) Axciter Modulator Tray, the (A12) Axciter Relay,
the (A11) Exciter/Driver Assembly Exciter 2, the (A13) system metering board
and the (A15) 2 way splitter.

Each of the exciter/driver assemblies typically contains (A3) the Downconverter
Board (1311103), (A4) the Frequency Agile Upconverter board (1309695), (A6)
the Amplifier Assembly (1315008), (A7) the Output Metering Detector Board
(1312207), (A8) the Innovator CX Control Board (1312543), (A9) the +5V, ±12V
Power Supply and (A10) the +48VDC Power Supply. NOTE: If your system
contains 888A amplifier devices, the Amplifier Assembly may be (1315381).

The SMPTE-310 inputs connect to the rear panels of the (A4 & A14) Axciter
modulator Drawers at the BNC connectors J27. The ASI Inputs, if option is
present, connect to the ASI BNC input jacks J33 on the rear panels of the
Drawers. The Optional External 10MHz reference inputs connect to J9 on the rear
panels of the Axciter modulator trays. The Axciter modulator tray converts the
ASI input into a digital IF signal at 44 MHz. The IF is connected to the digital
upconverter board (1309695) that takes the 44 MHz IF signal and converts it to a
TV channel frequency in the range of 54-860 MHz. The RF on channel signal is
fed to the ALC Board, Innovator CXB Series (1308570), which is used to control
the drive power to the RF amplifier chain in the Transmitter. The RF is connected
to the (A6) Amplifier Assembly (1315008) that is made up of (A6-A1) the 2 Stage
UHF Amplifier Board (1308784) and the (A6-A2) the RF Module Pallet (1309580).
The assembly also contains the (A6-A3) ALC Board (1315006). In systems that
contain 888A amplifier devices, the RF is connected to the (A6) Amplifier
Assembly (1315381) that is made up of (A6-A1) the 1 Watt Amplifier Board
(1315730), and the (A6-A2) the BLF881 Amplifier Board (1314882) and (A6-A3)
the Dual 888A Amplifier Pallet (1315347). The assembly also contains the (A6­A3) ALC Board (1315006 for systems that contain an Axciter or 1308570 for all
other systems). The assembly has approximately 40 dB of gain. The amplified
output at approximately +50 dBm connects to the (A7) Output Detector Board
(1312207) which provides forward and reflected power samples to the CU Control
Board (1312543) for metering and monitoring purposes. An output power
sample is also supplied to the front panel sample jack J15, which is a 50 Ohm
BNC type. The typical sample value is approximately 60dB down from the output
power level of the tray. The RF output is cabled to J9 the “N” connector RF
output jack on the rear panel of the tray. The RF outputs of the Exciter/driver
trays connect to (A20) the Exciter Output Routing Switch. The control panel
selects which exciter/driver output is connected to J1 on the Power Amplifier
Tray. The control and operating parameters of the Amplifier Tray are displayed
on the LCD Screen located on the selected ON Air exciter/driver tray. In the
CU500/600 tray, the input RF signal at J1, located on the rear panel of the tray,
is fed to J1 on the 4 Way Splitter Board, which supplies four outputs, one to each
amplifier pallet. Each amplifier pallet has approximately 14 dB gain. The
amplified outputs of the pallets are combined in the 4 Way combiner board whose
output is at J1. The RF is connected to J2 the 7/16” (1.1cm) Din RF output jack

Instruction Manual, Rev. 1 15

Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD System Description
ATSC Transmitter/Regenerative Translator

located on the rear panel of the tray. The 4 way combiner board supplies a
forward and a reflected power sample to the amplifier control board for metering
and monitoring purposes. In a CU500/600, the typical sample value at J6, a 50Ω
BNC jack located on the front panel of the tray, is approximately 65dB down from
the output power level of the tray. The On Channel RF output of the amplifier
tray is connected to the (A32) pre filter coupler that provides a pre filter forward
sample to a coaxial switch located in (A27) the Remote Interface Assembly. The
output of the pre filter coupler connects through the (A36) a low pass filter, to
(A35) the digital mask filter, the (A37) post filter coupler, the (A37) output
coupler and then to the antenna for your system. The post filter coupler provides
forward and reflected post filter power samples that connect to a coaxial switch
located in (A27) the Remote Interface Assembly. The forward and reflected
power samples are directed to the ON Air exciter by using the remote interface
panel to make the selection. Also included in the system is the Signal Routing
Board (1310948) which controls the RS-485 data connections between the dual
Exciter/Driver Assemblies and the power amplifier tray. Using a relay, which is
controlled by the (A27) remote interface module, connections between the
Exciters and the power amplifier tray are made. Exciter 1 can communicate with
the Power Amplifier Tray or Exciter 2 can communicate with the Power Amplifier
Tray both will not communicate at the same time. Each of the CXB exciters has
an Ethernet controller and a separate Ethernet port that will need wired to the
customer's network

Pre-Filter Sample (Non-Linear Distortion)

The pre-filter sample from the (A32) coupler connects to (A27) the remote
interface module which controls to which exciter the sample connects. The
sample connects to J1, on the (A2 or A12) Axciter relay, in the On Air exciter.
The (A2) relay is controlled by the (A4) Axciter Modulator in exciter 1 and the
(A12) relay is controlled by the (A14) Axciter Modulator in exciter 2 through jack
J7 on the tray. The selected output of the relay at J3, either the Pre or Post filter
sample, connects to the rear panel of the (A1 or A11) exciter/driver assembly at
the BNC Jack J4 that is connected to the downconverter board in the tray for use
in the adaptive equalization process in the Axciter system.

Post-Filter Sample (Linear Distortion)

A forward power sample, after-filtering, from the (A37) coupler at the output of
the DTV filter connects to (A27) the remote interface module which controls to
which exciter the sample connects. The forward sample from the selected On Air
exciter connects to the (A5 or A15) 2 way splitter. One output of the splitter
connects to the system metering board (A3 or A13) for use in the metering and
control circuits in the exciter. The other output of the splitter connects the post
filter forward sample to J2 on the (A2 or A12) Axciter relay in the selected On Air
Exciter. The post filter forward power sample is connected to J2, on the (A2 or
A12) Axciter relay located in the exciter that is selected as ON Air. The (A2)
relay is controlled by the (A4) Axciter Modulator and the (A12) relay is controlled
by the (A14) Axciter Modulator through jack J7 on the tray. The selected output
of the relay, either the Pre or Post filter sample, connects to the rear panel of the
(A1 or A11) driver/amplifier chassis assembly at the BNC Jack J4 that is
connected to the downconverter board for use in the adaptive equalization
process in the Axciter system.

Instruction Manual, Rev. 1 16

Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD Unpacking, Installation &
ATSC Transmitter/Regenerative Translator Maintenance

Unpacking, Installation and Maintenance

Unpacking

Axcera certifies that upon leaving our facility all equipment was undamaged and in proper
working order. It is imperative that all packages be inspected immediately upon arrival to
verify that no damage occurred in transit to the site. Inspect all packages for exterior
damage and make note of any dents, broken seals, or other indications of improper
handling. Carefully open each package and inspect the contents for damage. Verify that
all materials are enclosed as listed on the packing slip. Report any shortages to Axcera.
In the event any in transit damage is discovered, report it to the carrier. Axcera is not
responsible for damage caused by the carrier. If the equipment is not going to be
installed immediately, return all items to their original packaging for safe storage. Save
all packing material for future use. If equipment is ever removed from the site, the
original packaging will ensure its safe transport.

The (Optional) UPS is
located behind this blank
panel

A1

Exciter/Driver

A2

Power Amplifier

A3

Power Amplifier

Figure 1: CU2TD Front View Typical Racking Plan

Installation

The Innovator CX Series transmitters are designed for simple installation. Expensive test
equipment is not required for installation and set up and to keep a system operational. An
information decal, with Voltage Range, Current Range, Manufacturer, Model and ratings is
attached to the rear panel of the stand alone drawer or if mounted in a cabinet, to the top
of the frame above the door facing the rear of the cabinet. Prior to installing the product,
review the following items. Check that they been installed, tested and/or inspected.

Building Structure
Electrical Systems
Heating and Air Conditioning
Receive Antenna or Satellite Dish and input cabling
Optional ASI to S310 Converter, if needed
Transmit Antenna and output transmission line

Instruction Manual, Rev. 1 17

Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD Unpacking, Installation &
ATSC Transmitter/Regenerative Translator Maintenance

The Innovator CX Series systems are 17” (43.2cm) wide standard rack mountable
drawers. They are supplied with side mounted Drawer Slides for ease of installation and
removal. The CU0TD/RD-1, CU0TD/RD-2, CU0TD/RD-3, CU0TD/RD-4 & CU0TD/RD-5
systems are 3 RU, 5.25” (13.3cm), high. The CU1TD/RD-1, CU1TD/RD-2 & CU1TD/RD-3
systems are 9 RU, 15.75” (40cm) high, which is 3 RU, 5.25” (13.3cm) for the driver
drawer and 6 RU, 10.5” (26.7cm) for the amplifier drawer. The CU2TD/RD systems are 15
RU, 26.25” (66.7cm) high, which is 3 RU, 5.25” (13.3cm) for the driver drawer and 12 RU,
21” (53.4cm) for the two amplifier drawers. The CU3TD/RD systems are 21 RU, 36.75”
(93.3cm) high, which is 3 RU, 5.25” (13.3cm) for the driver drawer and 18 RU, 31.5”
(80cm) for the three amplifier drawers. The CU4TD/RD systems are 27 RU, 47.25”
(120cm) high, which is 3 RU, 5.25” (13.3cm) for the driver drawer and 24 RU, 42”
(106.7cm) for the four amplifier drawers. In all the systems just described, if the Axciter is
also part of the system, another 3 RU, 5.25” (13.3cm) must be added to the rack space
for the Axciter drawer. NOTE: The Optional Dual Exciter System requires an additional 4
RU, 7” (17.73cm) for mounting into the cabinet. 3 RU, 5.25” (13.3cm) for the second
Exciter/Driver drawer and an additional 1 RU, 1.75” (4.43cm) for the Exciter Switcher
panel.

Also needed for FCC compliance operation is an ATSC filter on the broadcast channel that
connects to the output of the CU0TD/RD thru CU4TD/RD systems. Space must be
provided for the ATSC filter, and in some systems, for the circulator, splitter, combiner,
reject load, and low pass filter whose dimensions will vary depending on manufacturer and
channel. Refer to the vendor supplied information included with your ATSC filter and low
pass filter for specific dimensions. Make sure that the space provided for the CX Series
equipment is sufficient and includes the circulator, splitters, combiners, reject load and
external filters. Check that any additional equipment, which is included in the system that
extends above or to the side of the mounting rack, has sufficient clearance space. Refer
to the custom racking plan for the system, if prepared, for detailed information.

Drawer Slide Installation

If the system is pre-mounted in a cabinet skip this section. Locate the drawer slides
included in the installation material for your system. See Figure 2 and the manufacturers
instructions, included with the drawer slides, for the cabinet mounting instructions of the
drawer slides. Install the left drawer slide into the left side of the cabinet (as viewed from
the rear). Allow 3 RU, 5.25” (13.3cm) of space between the drawers for a CU0TD/RD-1,
CU0TD/RD-2, CU0TD/RD-3, CU0TD/RD-4 & CU0TD/RD-5 systems. In high power systems,
allow a space of 3 RU, 5.25” (13.3cm) for the driver drawer and 6 RU, 10.5” (26.7cm) for
each of the amplifier drawers. Space must also be provided for the splitter, combiner,
ATSC filter and low pass filter, if present, whose dimensions will vary depending on the
manufacturer and the output channel. Secure the left drawer slide by connecting it to the
front and rear mounting bars using No. 10 screws and the bar nuts that have been
provided. Install the drawer slide on the right side of the cabinet (as viewed from the rear)
making sure that it is aligned with the drawer slide on the left side. Secure the slide by
connecting it to the front and rear mounting bars using No. 10 screws and the bar nuts that
have been provided. Repeat this process for any other drawers if purchased. With both
slides in place, slide the drawer or drawers into the cabinet.

Instruction Manual, Rev. 1 18

Innovator CU0TD-1/CU0RD-1 – CU4TD/CU4RD Unpacking, Installation &
ATSC Transmitter/Regenerative Translator Maintenance

Figure 2: Cabinet Slides

AC Input Connections

The CU0TD/RD-1, CU0TD/RD-2 and CU0TD/RD-3 single drawer systems will operate with
an input voltage of 85-253VAC. The CU0TD/RD-4 single drawer systems operate on 185­253VAC. The customer should provide a single point disconnect for the main AC input
connection to the transmitter. Check that the AC switch, located on the rear of the drawer
above the AC power jack, is OFF. Connect the AC power cord supplied with the drawer from
J6 on the rear of the drawer to the AC source. If your system has the optional ASI to S310
Converter, check that it is connected to the AC source. If your system contains an
optional preamp check that the 24VDC power supply is connected to the preamp and an
AC source.

If your system is a CU1TD/RD-1, CU1TD/RD-2 or CU1TD/RD-3, it also contains one
amplifier drawer. In CU2TD/RD and higher power systems, multiple amplifier drawers are
included. Each amplifier drawer is configured for 230 VAC operation only. Check that the
ON/OFF circuit breaker in the CU1TD/RD-1 amplifier drawer, or circuit breakers in N+1
amplifier drawers, CU1TD/RD-2 or CU1TD/RD-3, located on the rear panel on either side
of the AC power jack, are OFF. Connect the AC power cord supplied with the drawer from
J10 on the rear of the drawer to the 230 VAC source. Refer to Table 1 for the typical
voltage and current requirements for CX Systems.

If the system is mounted in a rack, an AC distribution box wired to a quad receptacle box is
used to connect the AC to the individual drawers. The AC distribution box is mounted on
the upper right side of the rack accessed through the back of the rack. The main AC input
for a C1TD-1 transmitter is, 195-253VAC, at least 10Amps, 50/60Hz. The customer should
provide a single point disconnect for the main AC input that connects to the transmitter.
The AC input lines connect inside the AC distribution box by first removing the two screws
that hold the cover plate to the front of the AC distribution box. Then connect the three
wire main AC input to the input lugs, L1 to L1, L2 to L2 and Ground to Ground. The power
amplifier drawer and the quad receptacle box connect through AC power cords directly to
the AC distribution box. The AC power to the optional receiver drawer and the
exciter/driver drawer are connected through AC power cords that plug into the quad
receptacle box.

If the system is mounted in a cabinet, an AC distribution panel is supplied to connect the AC
to the individual drawers. The AC distribution panel is mounted facing the rear of the
cabinet and accessed through the back of the cabinet. The main AC input for a CU2TD
transmitter is, 195-253VAC, at least 30Amps, 50/60Hz. The customer should provide a
single point disconnect for the main AC input that connects to the transmitter. The AC input
lines connect to the AC distribution panel by first removing the four #8 screws that hold the
cover plate to the front of the AC distribution panel. Then connect the three wire main AC
input to the input lugs located at the top left of the AC distribution panel, L1 to L1, L2 to L2
and Ground to the Ground lug on the left. The AC distribution panel in a CU2TD has three
circuit breakers that distribute the AC to the individual drawers, which are the Exciter and

Instruction Manual, Rev. 1 19