UBS Axcera CLV2TD-4 Low Band VHF Digital Broadcast Transmitter User Manual
UBS-Axcera Low Band VHF Digital Broadcast Transmitter
User Manual
Instruction Manual
Innovator,
CLV1TD/CLV1RD (500W) to
CLV4TD/CLV4RD (2000W)
VHF Low Band, ATSC Transmitter/
Regenerative Translator
w/Adaptive Modulator
UBS-Axcera Inc.
103 Freedom Drive • P.O. Box 525 • Lawrence, PA 15055-0525, USA
Phone: 724-873-8100 • Fax: 724-873-8105
www.UBS-Axcera.com • info@UBS-Axcera.com
RESTRICTIONS ON USE, DUPLICATION OR DISCLOSURE
OF PROPRIETARY INFORMATION
This document contains information proprietary to UBS-Axcera, to its affiliates or to a third party
to which UBS-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 UBS-Axcera is
expressly prohibited, except as UBS-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 © 2012, UBS-Axcera
NOTE: This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to part 15 of the FCC Rules. These limits are designed to pro-vide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the user will be required to correct
the interference at his own expense.
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD Table of Contents
ATSC Transmitter/Regenerative Translator
Instruction Manual, Rev. 0 i 6/17/13
Table of Contents
Chapter 1 Introduction........................................................................................ 1
1.1 Manual Overview....................................................................................... 1
1.2 UBS-Axcera Numbering System Explanation.................................................. 1
1.3 Assembly Designators ................................................................................ 1
1.4 Safety ..................................................................................................... 2
1.5 Contact Information................................................................................... 3
1.6 Return Material Procedure .......................................................................... 3
1.7 Limited One Year Warranty for UBS-Axcera Products ...................................... 4
Chapter 2 System Description............................................................................ 11
2.1 Product Architecture ................................................................................ 11
2.2 CX Drawer.............................................................................................. 11
2.3 Amplifier Drawers.................................................................................... 12
2.4 Air Cooled Assembly ................................................................................ 15
2.5 Power Supply Assembly............................................................................ 15
2.6 Optional Remote Interface with Dual Exciter Switching System ...................... 16
2.7 Pre-Filter Sample (Non-Linear Distortion).................................................... 17
2.8 Post-Filter Sample (Linear Distortion)......................................................... 17
Chapter 3 Unpacking, Installation and Maintenance............................................... 19
3.1 Unpacking .............................................................................................. 19
3.2 Installation Overview ............................................................................... 20
3.3 CX Drawer Slide-rail Installation ................................................................ 21
3.4 Amplifier Installation and Removal............................................................. 22
3.5 DC Power Supply Chassis Shelf and Module Installation and Removal.............. 23
3.6 AC Input Connections .............................................................................. 23
3.6.1 AC Distribution Box ........................................................................... 23
3.6.2 AC Distribution Panel ......................................................................... 24
3.6.3 Power Requirements .......................................................................... 24
3.7 Input and Output Connections................................................................... 24
3.7.1 CX Drawer........................................................................................ 24
3.7.1.1 Input Connections ....................................................................... 26
3.7.1.2 Output Connection....................................................................... 27
3.7.1.3 Power Monitoring Connections to J11 ............................................. 27
3.7.1.4 Remote Connections to J12........................................................... 28
3.7.2 Vertically Mounted HPA ...................................................................... 30
3.7.3 Optional K-Tech Receiver.................................................................... 31
3.8 Connecting your Transmitter to a TCP/IP Network ........................................ 31
3.9 Maintenance ........................................................................................... 32
Chapter 4 Initial On Site Turn On Procedure......................................................... 33
4.1 Turn On Procedure .................................................................................. 33
4.2 Typical System Operating Parameters ........................................................ 34
4.3 Typical Problems, Indications and Causes in CU0TD/RD-2 or -3 Drawer........... 34
Chapter 5 Front Panel Pushbutton and LCD/LED Operation ..................................... 35
5.1 CX Drawer.............................................................................................. 35
5.2 Vertical Amplifier Drawer .......................................................................... 36
5.3 LCD Front Panel Screens .......................................................................... 37
5.3.1 Implementation ................................................................................ 38
5.3.2 Operation Screens ............................................................................. 40
5.3.2 Set-up Screens ................................................................................. 45
Chapter 6 Innovator CX Series Web Ethernet Interface Kit ..................................... 51
6.1 Introduction ........................................................................................... 51
6.2 Logging In.............................................................................................. 51
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD Table of Contents
ATSC Transmitter/Regenerative Translator
Instruction Manual, Rev. 0 ii 6/17/13
6.3 Main Control/Monitoring Page.................................................................... 52
6.4 External Amplifier Status Page .................................................................. 54
6.5 View Events Page .................................................................................... 55
6.6 Configure Page ....................................................................................... 56
Chapter 7 Innovator CX Series SNMP Interfaces ................................................... 59
7.1 Introduction ........................................................................................... 59
7.2 SNMP Configuration ................................................................................. 59
Chapter 8 8VSB ATSC Modulator Board ............................................................... 61
Chapter 9: Descriptions of Boards in the CLV1TD/RD through CLV4TD/RD System64
9.1 CX Drawer Boards ................................................................................... 64
9.1.1 (A1) 8 VSB Demodulator Board (1308275)............................................ 64
9.1.1.1 Overview ................................................................................... 64
9.1.1.2 Microcontroller Functions.............................................................. 64
9.1.1.3 Jumper and DIP Switch Settings .................................................... 64
9.1.2 (A8) Control Card, Innovator CX (1312543) .......................................... 65
9.2 VHF Amplifier Boards ............................................................................... 66
9.2.1 Amplifier Design................................................................................ 66
9.2.2 Capture of the Test Values in the VHF Amplifier ..................................... 69
9.2.3 Functional Description of the Boards in the VHF Amplifier ........................ 70
9.2.3.1 (A1) Phase/Gain Board (1307780; Appendix B) ............................... 70
9.2.3.2 (A2) VHF Pre-Driver Board (1307278; Appendix B) .......................... 70
9.2.3.3 (A3) VHF Driver Board (1305101; Appendix B ................................. 70
9.2.3.4 (A4) 1:4 Splitter (1304714) .......................................................... 71
9.2.3.5 (A5-A8) VHF Dual Stage Amplifier Board (1304514; Appendix B) ....... 71
9.2.3.6 2:1 Combiner ............................................................................. 72
9.2.3.7 (A13) 4:1 Combiner (1304767) ..................................................... 72
9.2.3.8 (A14) Amplifier Module Control Board (1306830; Appendix B) ........... 73
9.3 (Optional) ASI to S310 Converter Module ................................................ 76
9.3.1 ASI Motherboard (1311179) ............................................................ 76
9.3.2 ASI to 310 Conversion Board, Non-SFN (1311219) ............................. 77
9.3.3 ASI to 310 Conversion Board, SFN (1309764) .................................... 77
9.4 (Optional) K-Tech Receiver.................................................................... 77
Chapter 10: System Repair and Set-Up Procedures............................................... 78
10.1 Troubleshooting and Repair of the VHF Amplifier ........................................ 78
10.1.1 Safety Information........................................................................... 78
10.1.2 Troubleshooting .............................................................................. 78
10.1.2.1 Front Panel LEDs ....................................................................... 78
10.1.2.1 Polling Fault Indications.............................................................. 79
10.2 Exchanging Amplifiers ............................................................................ 79
10.2.1 Exchange of a Module ...................................................................... 79
10.2.2 Mounting a New Module.................................................................... 79
10.2.3 Final Steps ..................................................................................... 80
10.3 Adjusting the Output Power of an Amplifiers .............................................. 80
10.3.1 Adjustment Procedure ...................................................................... 80
10.4 Amplifier Connections.............................................................................. 81
APPENDIX A:...................................................................................................... 1
Innovator CLV2RD Regenerative Translator System with Adaptive Modulator Drawing
List ................................................................................................................... 1
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD Introduction
ATSC Transmitter/Regenerative Translator
Instruction Manual, Rev. 0 1
Chapter 1 Introduction
1.1 Manual Overview
This manual contains the description of the Innovator CLV1TD/CLV1RD through
CLV4TD/CLV4RD 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 CLV1TD/CLV1RD through CLV4TD/CLV4RD
ATSC Transmitter/Regenerative Translator System that was purchased.
NOTES: 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 optional
K-Tech Receiver or Signal Converter, if part of the system, is contained in the separate
manufacturers supplied manual. Information on the optional UPS, if part of the system,
is contained in the separate manufacturers supplied manual.
1.2 UBS-Axcera Numbering System Explanation
The UBS-Axcera numbering system is explained as follows - CLV2RD system.
C – CX Series, H – HX Series
LV – Low VHF Frequency Band, HV - High VHF Frequency Band, U - UHF Frequency Band
0 or X - Number of external Power Amplifier drawers
R - Regenerative translator, T - Transmitter, L - Echo cancelling repeater
D – ATSC, C - COFDM (DVB-T/H/T2), I - ISDB-T, No letter or blank means analog
1.3 Assembly Designators
UBS-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.
Cables that are connected between boards within a drawer or assembly and cables that
are connected between the drawers, racks and cabinets are labeled using markers – see
Figure 1. 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.
432
1
Figure 1: Marker Identification Drawing
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD Introduction
ATSC Transmitter/Regenerative Translator
Instruction Manual, Rev. 0 2
1.4 Safety
The Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD ATSC Transmitter/Regenerative
Translator systems manufactured by UBS-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 – UBS-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. UBS-Axcera provides two manuals for this purpose; one manual can be
left at the office while the other can be kept at the site.
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 UBS-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 UBS-
Axcera Technical Service Department if you have any questions regarding service or
replacement parts.
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD Introduction
ATSC Transmitter/Regenerative Translator
Instruction Manual, Rev. 0 3
1.5 Contact Information
The UBS-Axcera Field Service Department can be contacted by PHONE at 724-873-8100
or by FAX at 724-873-8105.
Before calling UBS-Axcera, please be prepared to supply the UBS-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.
1.6 Return Material Procedure
To insure the efficient handling of equipment or components that have been returned for
repair, UBS-Axcera requests that each returned item be accompanied by a Return
Material Authorization Number (RMA#). The RMA# can be obtained from any UBS-
Axcera Field Service Engineer by contacting the UBS-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 UBS-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 UBS-Axcera. In addition, all shipping
material should be retained for the return of the unit to UBS-Axcera.
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 UBS-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:
UBS-Axcera
103 Freedom Drive
P.O. Box 525
Lawrence, PA 15055-0525 USA
For more information concerning this procedure, call the UBS-Axcera Field Service
Department at 724-873-8100.
UBS-Axcera can also be contacted through e-mail at info@UBS-Axcera.com and on the
Web at www.UBS-Axcera.com.
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD Introduction
ATSC Transmitter/Regenerative Translator
Instruction Manual, Rev. 0 4
1.7 Limited One Year Warranty for UBS-Axcera Products
UBS-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 UBS-Axcera's plant, when operated in
accordance with UBS-Axcera's operating instructions. This warranty shall not apply to
tubes, fuses, batteries, bulbs or LEDs.
Warranties are valid only when and if (a) UBS-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) UBS-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 UBS-Axcera) repair or alteration. UBS-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 UBS-Axcera's sole discretion) any defective parts free of charge (F.O.B.
UBS-Axcera’s plant) and/or (b) crediting (in UBS-Axcera's sole discretion) all or a portion
of the purchase price to the buyer.
Equipment furnished by UBS-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.
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD Introduction
ATSC Transmitter/Regenerative Translator
Instruction Manual, Rev. 0 5
) WARNING!!!
½ HIGH VOLTAGE ¾
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.
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD Introduction
ATSC Transmitter/Regenerative Translator
Instruction Manual, Rev. 0 6
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.
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.
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.
BURNS
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.
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.
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD Introduction
ATSC Transmitter/Regenerative Translator
Instruction Manual, Rev. 0 7
dBm, dBw, dBmV, dBµV, & 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)]
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD Introduction
ATSC Transmitter/Regenerative Translator
Instruction Manual, Rev. 0 8
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
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD Introduction
ATSC Transmitter/Regenerative Translator
Instruction Manual, Rev. 0 9
RETURN LOSS VS. VSWR
1.001 1.01 1.1 2.0
VSWR
0
-10
-20
-30
-40
-50
-60
-70
R
E
T
U
R
N
L
O
S
S
dB
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD Introduction
ATSC Transmitter/Regenerative Translator
Instruction Manual, Rev. 0 10
ABBREVIATIONS/ACRONYMS
AC: Alternating Current
AFC: Automatic Frequency
Control
AGC Automatic Gain 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.
CLV2RD: Line C, Frequency LB VHF,
# of HPA’s 2, System
Regenerative Translator,
Modulation Standard ATSC.
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
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD System Description
ATSC Transmitter/Regenerative Translator
Instruction Manual, Rev. 0 11
Chapter 2 System Description
2.1 Product Architecture
The Innovator CX Series Systems can be configured as DTV Transmitters (i.e CLV2TD)
or Regenerative Translators (i.e CLV2RD). The DTV Transmitter (TD) takes an ASI input
and converts it to an On-Channel DTV RF output signal. The Regenerative Translator
(RD) accepts an On-Channel RF signal (-79 to –8 dBm) and converts it to an On-Channel
DTV RF output signal. If an optional preamp is present in the system, it is connected to
the output of the receive antenna and amplifies the weak signal approximately 20 dB.
In multi drawer systems, the CX drawer is configured as an exciter/driver used to drive
additional power amplifier drawers; a single amplifier drawer can operate at 500 Watts
ATSC; two amplifier drawers can operate at 1000 Watts ATSC; three amplifier drawers
can operate at 1500 Watts ATSC; and four amplifier drawers can operate at 2000 Watts
ATSC.
The Innovator CX Series system provides Adaptive Linear and Non-linear 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 CX
drawer. This kit supplies 10 MHz and 1 PPS references for use in the CX drawer.
2.2 CX Drawer
The CX drawer contains the (A4) 8VSB ATSC Digital Modulator (1316294), the (A15)
Downconverter (1316715) and the (A16) Capture Board (1316716). The drawer also
contains the (A6) Amplifier Assembly, the (A7) Output Detector Board, the (A8)
Innovator CX Control Board (1312543), the (A10) 24VDC Power Supply and the (A9)
12V Power Supply. To make the system a regenerative translator, the Demod Kit
(1316534) supplies the (A1) 8 VSB Demodulator Board (1308275) for the drawer.
When the system is configured as an ATSC Transmitter (TD), the ASI “A” input at (J1) is
connected directly to the input jack (J30 or ASI IN1), and the ASI “B” input at (J2) is
connected directly to the input jack (J31 or ASI IN2), on the (A12) 8 VSB Modulator
Board. The 8 VSB Modulator Board automatically selects the ASI “A” or “B” input,
depending on which connector the input signal is present on.
When configured to operate as a Regenerative Translator (RD), the DTV ON Channel RF
Input at (J1 or J5), (-8 to -79 dBm) is connected to the Tuner Input Jack on the (A1)
8 VSB Demodulator Board (1308275) supplied with the Demod kit. The 8 VSB
Demodulator Board converts the DTV input to a SMPTE-310 output at (J13), which is
connected to the input jack on the (A12) 8 VSB Modulator Board. The output of the 8
VSB modulator board (at the RF output jack X-502) is connected to J1 on the (A6)
amplifier assembly.
The 8 VSB Modulator Board converts the ASI or SMPTE-310M input to a digital RF TV
channel frequency in the range of 54 MHz - 88 MHz.
The 8 VSB Modulator Board’s RF on channel signal is connected to J1 on the amplifier
assembly, which is connected to the (A6-A4) ALC Board (1315006). The ALC board is
used to control the drive power to the High Power Amplifier chain.
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD System Description
ATSC Transmitter/Regenerative Translator
Instruction Manual, Rev. 0 12
The (A6) Amplifier Assembly (1316313) is made up of the (A6-A1) 1W VHF Amplifier
Board (1310282) and the (A6-A2) the BLF881 Single Stage Amplifier Board (1314882).
The assembly has approximately 35 dB of gain. The amplified output at approximately
+37 dBm is connected to the (A7) Output Detector Board (1312207) which provides
forward (2V=100%) and reflected (2V=25%) power samples to the CX 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 connector. The typical sample value is approximately 60dB down
from the output power level of the drawer.
The RF output is cabled to J9 the “N-type” connector RF output jack on the rear panel of
the drawer. The CX drawer RF output is then connected to the High Power Amplifier
Assembly RF Input located on the rear panel of the assembly.
Note: Systems with 2 CX drawers will include a Remote Interface with Dual Exciter
Switching system that includes an Exciter Output Routing Switch. In this case, the
amplifier assembly RF input will be connected to the Routing Switch output.
2.3 Amplifier Drawers
Each VHF amplifier assembly serves to amplify the RF signal delivered by the exciter to
the power level needed to attain the full rated output power of the transmitter. Nominal
transmitter output power is achieved by adding the parallel connection of individual
amplifier assemblies, within a cabinet assembly, and then the adding of a number of
multiple amplifier cabinet assemblies. For system with two or more amplifier drawers,
the high power amplifier assembly includes a quadrature splitter , which feeds up to 4
VHF amplifier drawers (1308727) via an N-typ input (J1).
The control and operating parameters of the amplifier assembly’s amplifier drawers are
displayed on the LCD Screen on the driver drawer.
The amplifier operates over the VHF Low Band TV frequency spectrum from 54 MHz to
88 MHz without any special tuning requirements. It is a three-stage amplifier design
formed by a pre-driver, driver, and final stage as shown in Figure 2; all stages
incorporate technology. The driver is a single stage amplifier module whose output is
split four ways. The final stage is made up of four identical power modules. Each power
module contains a dual stage amplifier whose outputs are combined in a 2-way hybrid
combiner. The four 2-way hybrid combiner outputs are connected to a 4-way combiner
assembly whose output is the RF output of the individual amplifier assembly.
The features of the VHF amplifier assembly include:
• All amplifying stages are equipped with transistors
• Operates over the complete frequency band without special tuning requirements
• High redundancy due to the parallel connection of many power transistors
• Mean junction temperature <120° C
• Important operating parameters displayed in the transmitter control assembly
• Multiple fault protection circuitry against mismatch, overvoltage, overcurrent and
overtemperature conditions
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD System Description
ATSC Transmitter/Regenerative Translator
Instruction Manual, Rev. 0 13
The amplifier possesses multiple fault-protection circuits that prevent damage to the
power transistors during critical operating conditions, such as high mismatch,
overtemperature, overcurrent, or overvoltage. Important operating parameters, such as
drain currents, operating voltages, RF powers, and temperatures are polled and
displayed in the transmitter control assembly.
Figure 2: VHF LB Amplifier Assembly
The paralleling network of the amplifier is arranged so that it continues to operate at
reduced power if a module fails. The remaining available power is given by:
P
rem = Pnom ⋅ ([m - n] / m)2
where:
Prem = remaining power
Pnom = nominal power
m = number of modules
n = number of failed modules
Figure 3: Remaining Power after Failure of Amplifier Modules
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD System Description
ATSC Transmitter/Regenerative Translator
Instruction Manual, Rev. 0 14
When multiple amplifier drawers are used, the 7-16” RF output (J2) of each amplifier
drawer is combined using a hybrid or progressive combiner (system dependant).
Systems with 2 amplifiers and a hybrid combiner include a reject load, which provide
isolation protection for the operating power amplifier if the second amplifier fails; any
reflected energy will be dissipated by the 500W load. The reject load includes thermal
switches which monitor the temperature of the load and provide an over-temperature
fault (if it occurs) to the CX Exciter(s) through the system metering board(s).
Systems with 3 amplifiers and a progressive combiner include multiple reject loads,
which provide isolation protection for the operating power amplifiers if one of the
amplifiers fails. If the first or second amplifier fails, any reflected energy will be
dissipated by the 500W load. If the third amplifier fails, any reflected energy will be
dissipated by the 1kW load. The reject loads include thermal switches which monitor the
temperature of the load and provide an over-temperature fault (if it occurs) to the CX
Exciter(s) through the system metering board(s).
The combiner 1-5/8” output is connected to a pre-filter coupler, which provides forward
power feedback signals for Non-linear Pre-correction as well as a reflected power
feedback signal for system metering.
The pre-filter coupler forward power sample (FWD1) is connected directly to the RF
Input 1 jack (J3), located on the rear panel of the CX drawer(s). This forward power
sample is used for Non-linear Pre-correction. In dual CX drawer systems, the output
sample is connected to a 2-way splitter (A105), which is feed directly to the RF Input 1
jack (J3), located on the rear panel of the CX drawers.
The output of the pre-filter coupler is connected to a harmonic low pass filter (system
dependant), digital band pass filter and post-filter coupler.
The post-filter coupler provides forward power samples for Linear Pre-correction and
system metering as well as a reflected power sample for system metering. The pre-filter
coupler, filters and post filter coupler are all installed outside of the cabinet.
In single CX drawer systems, the post-filter coupler forward power sample is connected
to the RF Input 2 jack (J4), located on the rear panel of the CX drawer through a 2-way
splitter (A5). This forward power sample is used for Linear Pre-correction. In dual CX
systems, the forward power sample (FWD1) is connected to a 2-way splitter (A115),
which is connected directly to the RF Input 2 jack (J4), located on the rear panel of the
CX drawers.
In single CX drawer systems, the post-filter coupler forward power sample is also
connected to the RF input (J3), located on the System Metering board (1312666)
through a 2-way splitter (A5). The post-filter coupler reflected power sample is
connected directly to the RF input (J8), located on the System Metering board. The
System Metering board is connected to the CX Exciter, via the Exciter’s serial ports (J11
and J13).
In dual CX drawer systems, the post-filter coupler forward power sample (FWD2) is
connected to a 2-way splitter (A5), which is conected directly to the RF input (J3),
located on two System Metering boards (1312666). The post-filter coupler reflected
power sample (REFL2) is connected to a 2-way splitter (A15), which is connected
directly to the RF input (J8), located on two System Metering boards.
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD System Description
ATSC Transmitter/Regenerative Translator
Instruction Manual, Rev. 0 15
Each System Metering board is connected to an individual CX Exciter, via the Exciter’s
serial ports (J11 and J13).
The System Metering Board(s) (1312666) provides over-temperature and other
parameters to the CX Exciter(s), in addition to the forward and reflected power samples.
The amplifier assembly also include an air cooling assembly and a DC power supply
assembly.
2.4 Air Cooled Assembly
The air cooling assembly consists of four axial fans, which are mounted under the VHF
Amplifier drawers. The input air is drawn through the front of the cabinet and forced up
through the amplifier drawers and out of the top of the cabinet. WARNING: Do not
block the input or output air flow to the cabinet.
2.5 Power Supply Assembly
Figure 4: AC Wiring Harness VHF Amplifier Cabinet
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD System Description
ATSC Transmitter/Regenerative Translator
Instruction Manual, Rev. 0 16
The DC voltages to the VHF amplifier assemblies mounted in each VHF amplifier cabinet
are supplied by the switching power supplies, which are mounted in a power supply
chassis shelf located in the same cabinet.
The supplies are connected in parallel via the capacitor bank mounted in the rear of the
cabinet. The power supplies operate at +48Vdc and are not monitored by the control
system. They have their own internal protection circuitry and are ON and enabled when
AC power is applied.
The power supply shelf can be configured with 1, 2, 3, or 4 rectifiers depending on the
configuration of the system. A 1kW transmitter typically requires 3 rectifiers, leaving
one empty slot, which can be populated with a 4th rectifier providing N+1 power supply
redundancy (optional). Contact UBS-Axcera for more details on the configuration of
your system.
The individual power supply modules are "hot swappable". The lever built into the front
grill cover of the module can be used to disconnect and remove from the power supply
module from the chassis shelf.
The power supply modules are high efficiency (better than 93%) air cooled units. Each
module has a single phase input with a typical power factor of 0.98. The module inputs
are wired to accommodate the 230 VAC line input.
Refer to the AC wiring and interconnect drawings provided with your system for more
information. Contact UBS-Axcera if you have any questions regarding the AC
requirements.
2.6 Optional Remote Interface with Dual Exciter Switching System
The optional Remote Interface with Dual Exciter Switching system includes a Remote
Interface Panel (1314493) with ABS Control Panel (1314609) and Relay Interface board
(1311403) as well as a Signal Routing Board (1314440) and a Serial Loop-Through
Board (1307811). The system components listed above are installed at various
locations within the cabinet.
The Remote Interface Unit monitors the state of the Digital Exciters and provides
automatic exciter switching based on current conditions and operator inputs. The
Remote Interface Unit’s RJ-45 Ethernet connector is connected to a router, which
provides a user connection point for access to the transmitter Web and SNMP interfaces.
The Relay Interface Board RF output is connected to the Quadrature Splitter (1309334)
RF input.
The Serial Loop-Thru board and Signal Routing board provide the amplifier drawers with
system serial interface connections to the CX Exciter drawers and the Remote Interface
panel.
For detailed operating instructions, please refer to the CX Dual Exciter System and
Remote Interface Panel manual (1314493).
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD System Description
ATSC Transmitter/Regenerative Translator
Instruction Manual, Rev. 0 17
2.7 Pre-Filter Sample (Non-Linear Distortion)
The pre-filter sample from the pre-filter coupler connects to (J3), the RF input 1 jack,
located on the rear panel of the driver drawer. This sample connects to the modulator
board where it is used in the correction system.
2.8 Post-Filter Sample (Linear Distortion)
The post-filter sample from the post-filter coupler connects to (J4), the RF input 2 jack,
located on the rear panel of the driver drawer. This sample connects to the modulator
board where it is used in the correction system.
IMPORTANT NOTES:
RF feedback sample lines must not be disturbed when adaptive pre-correction is
enabled. If a sample line is removed, the appropriate pre-correction mode must first be
disabled and only re-enabled after the feedback signal is re-connected. RF feedback
sample #1 is feedback for the non-linear pre-corrector system and sample #2 is used
for the linear pre-corrector system.
The adaptive pre-correction systems are likely to be significantly affected if the sense
port is moved to another coupler port with a different level or if a sample level is
changed significantly (a few dB). If the linear pre-corrector system is exposed to this
scenario it may generate a notable ripple in the output that may translate into an
increase (or decrease) of the measured RMS level. Should this situation occur, the only
way to restore proper operation is to reset the linear corrector using the controller's 'Set
To Neutral' command or the web interface's 'Reset Current Curve To Factory' command
and allow the pre-corrector system to start over again.
The On Channel RF output of the amplifier drawer either connects directly to the low
pass filter and digital mask filter and then to the antenna in single amplifier systems or
to a combiner, pre-filter coupler, low pass filter, the digital mask filter, post-filter output
coupler and finally to the antenna in multiple amplifier systems. The post-filter 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.
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD System Description
ATSC Transmitter/Regenerative Translator
Instruction Manual, Rev. 0 18
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Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD Unpacking, Installation &
ATSC Transmitter/Regenerative Translator Maintenance
Instruction Manual, Rev. 0 19
Chapter 3 Unpacking, Installation and Maintenance
3.1 Unpacking
UBS-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 UBS-Axcera. In the event any in transit damage is discovered, report it to the carrier.
UBS-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.
Figure 5: CLV2TD/RD Front View Typical Racking Plan
HPA Assembly with
Splitter, HPA Modules
and Combiner
HPA Blower
Power Supply Shel
f
PDU
CX
Exciter/Driver
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD Unpacking, Installation &
ATSC Transmitter/Regenerative Translator Maintenance
Instruction Manual, Rev. 0 20
Figure 6: CLV3TD/RD Front View Typical Racking Plan
3.2 Installation Overview
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
CX
Exciter/Driver
HPA Blower
HPA Assembly with
Splitter, HPA Modules
and Combiner
PDU
ABS Control Panel (optional)
K-tech Receiver (optional)
UPS (optional)
Dual CX
Exciter/Driver (optional)
Battery (optional)
Power Supply Shelves
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD Unpacking, Installation &
ATSC Transmitter/Regenerative Translator Maintenance
Instruction Manual, Rev. 0 21
The Innovator CX Series systems are 17” (43.2cm) wide standard rack mountable
drawers. They are sometimes supplied with side mounted Drawer Slides for ease of
installation and removal.
The CLV0TD/RD-1 through CLV0TD/RD-5 systems require a single CX exciter drawer
which occupies 3 RU, or 5.25” (13.3cm) of rack space.
The CLV1TD/RD through CLV4TD/RD systems require a single CX exciter drawer, as well
as the vertically mounted high power amplifier drawers. 14 RU, or 24.5” (62.23cm) of
rack space is required for the amplifier assembly which includes splitter and combiner
assemblies as well as an amplifier shelf, which can accommodate 1 to 4 amplifier
drawers. An additional 4RU, 7” (17.78cm) is required for the blower system and up to
2RU, or 3.5” (8.9cm) is required for the DC power supply shelves.
NOTE: The optional dual exciter/driver system requires an additional 4 RU, or 7”
(17.78cm) of rack space for mounting equipment in the cabinet; 3 RU, or 5.25”
(13.3cm) for the second Exciter/Driver drawer and 1 RU, or 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 CLV0TD/RD-1 thru CLV4TD/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,
combiner, 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.
3.3 CX Drawer Slide-rail Installation
If the system is pre-mounted in a cabinet skip this section.
Locate the drawer slide-rails included in the installation material for your system. Refer to
Figure 7 and the manufacturers instructions, included with the drawer slide-rails, for the
cabinet mounting instructions of the drawer slide-rails.
Install the left drawer slid-rail into the left side of the cabinet (as viewed from the rear).
Allow 3 RU, or 5.25” (13.3cm) of space between the CX drawers used in the CLV0TD/RD-
1 through CU4TD/RD systems.
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-rail 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-rail on the right side of the cabinet (as viewed from the rear)
making sure that it is aligned with the drawer slide-rail on the left side. Secure the slide-
rail 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 slide-rails in place, slide the drawer or drawers into the cabinet.
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD Unpacking, Installation &
ATSC Transmitter/Regenerative Translator Maintenance
Instruction Manual, Rev. 0 22
Figure 7: Cabinet Slides
3.4 Amplifier Installation and Removal
WARNING: The High Power Amplifier weighs approximately 54 lbs (25kg) and
should be installed with caution.
For CLV1TD/RD through CLV4TD/RV systems with vertically mounted amplifier drawers,
the cabinet is equipped with a High Power Amplifier Assembly which houses 1 to 4 High
Power Amplifier drawers, as well as splitter and combiner assemblies and a blower
system. The user will be required to install the amplifier drawers as they are removed
prior to shipping.
Using two handlers, one located on each side of the amplifier, lift the amplifier and
position it level to the open space in the cabinet. Carefully place the bottom of the
amplifier onto the support shelf. Slowly slide the power amplifier into the cabinet until it
stops. There are two blind mate connectors (DC power and Serial Communication)
located on the amplifier rear panel which are aligned with corresponding connectors on
the Amplifier Assembly backplane. Ensure that the connectors are aligned properly and
slowly push the amplifier into the backplane until it stops. The amplifier should be
secured to the Amplifier Assembly using the No. 10 screws provided.
The user will also be required to install several front panel connectors – see Section
3.7.3.
The amplifier drawers can be replaced, but the transmitter must be placed in standby
first. The user must then switch the circuit breakers for the DC power supply shelves
OFF. Once this is done, the cables can be disconnected and the amplifier can be
removed from the assembly.
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD Unpacking, Installation &
ATSC Transmitter/Regenerative Translator Maintenance
Instruction Manual, Rev. 0 23
3.5 DC Power Supply Chassis Shelf and Module Installation and Removal
Figure 8: Front View of DC Power Supply Chassis Shelf with Modules
For systems with HPA’s, one or more DC power supply chassis shelves are mounted to
the 19” (483mm)” rails below the High Power Amplifier assembly using a total of 6
screws, 3 on each side.
The individual power supply modules are "hot swappable". The lever built into the front
grill cover of the module can be used to disconnect and remove from the power supply
module from the chassis shelf. Push the mounting clip (see Figure 8) to the left to
release the grill cover then pull forward on the grill cover to disconnect the module’s
rear connections. Pull farther to remove the module from the chassis shelf altogether.
To replace a power supply module, place the new module in the shelf’s vacant space
with the LEDs located on the right side of the opening and slide the module into the shelf
until the rear panel connectors mate. Close the grill cover until the mounting clip locks.
3.6 AC Input Connections
Multi drawer systems with vertically mounted amplifiers will always be mounted in a rack
or cabinet. An AC distribution box is connected to an AC distribution panel, which is
supplied to connect AC to the individual drawers and the amplifier DC power supply shelf.
The AC distribution panel is mounted facing the front of the cabinet.
Note: If the system includes an optional UPS, the AC distribution panel will be connected
to the UPS, which will provide power to all of the drawers except the DC power supply
shelves.
3.6.1 AC Distribution Box
The AC distribution box provides a connection point for the Mains AC input and is pre-
wired to the AC distribution panel. The AC distribution box is mounted on the right side of
the top of the rack (when facing the back of the rack).
The customer should provide a single point disconnect for the main AC input that connects
to the transmitter. Please refer to table 1 for power requirements.
The AC input lines connect inside the AC distribution box by first removing the screws that
hold the cover plate to the front of the AC distribution box. Then connect the three wire
main AC input to the L1, L2 and Ground cables using Marrette wire connectors.
The AC distribution box is pre-wired to the AC distribution panel and does not require any
other electrical connections.
Power Supply
Controlle
r
Power Supply
Chassis Assembly
Power Supply
Module
Grill Cove
r
Mounting Clip
Cabinet Mounting
Bracket
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD Unpacking, Installation &
ATSC Transmitter/Regenerative Translator Maintenance
Instruction Manual, Rev. 0 24
3.6.2 AC Distribution Panel
The transmitter rear panel AC distribution box is connected internally to an AC
distribution panel using a 3 conductor cable. The panel is mounted at the front of the
cabinet, in the lower section underneath the Exciter/Driver drawer(s). NOTE: No user
installation is required for the AC distribution panel.
The PDU includes a mounting block which provides the Mains AC input to the PDU circuit
breakers.
3.6.3 Power Requirements
Table 1: CX Series Digital Systems Typical AC Input and Current Requirements
System O/P Power Power
Consumption Voltage Current
CLV1TD/RD 500 Watts 4600 Watts 230 VAC 20 Amps to the Cabinet
CLV2TD/RD 1000 Watts 8700 Watts 230 VAC 37.8 Amps to the Cabinet
CLV3TD/RD 1500 Watts 11880 Watts 230 VAC 51.7 Amps to the Cabinet
CLV4TD/RD 2000 Watts 14800 Watts 230 VAC 64.4 Amps to the Cabinet
NOTE: All values are approximate.
3.7 Input and Output Connections
3.7.1 CX Drawer
The CX drawer rear panel includes a number of input, output and serial connectors that
require the user to connect cables to when installing the drawer.
When configured as an RD system, the drawer accepts an On Channel RF signal. When
configured as a TD system, the drawer accepts an ASI or SMPTE 310M input. In each
case, the drawer outputs a digital On Channel RF signal.
When the system had been configured as a complete rack/cabinet mounted transmitter
system, cables have been installed in the rack/cabinet and hang loosely near the rear
panel of the CX drawer when it is pushed all the way into the cabinet. Each cable has
been labeled to simplify installation. Please refer to Figure 6 and Table 3 for the locations
and information on the CX drawer rear panel connectors.
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 CX drawer.
Figure 9: CX Drawer Rear Panel Connectors
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD Unpacking, Installation &
ATSC Transmitter/Regenerative Translator Maintenance
Instruction Manual, Rev. 0 25
Port Type Function Impedance
J1 BNC
Input A: On Channel RF Input (RD) –78 to –8 dBm or
ASI Input or SMPTE-310M Input 50 Ohms
J2 BNC Input B: ASI Input or SMPTE-310M Input 50 Ohms
J3 BNC
Input C: RF Sense-1 Input from pre-filter coupler
See notes 5 & 6 50 Ohms
J4 BNC
Input D: RF Sense-2 Input from post-filter coupler.
See notes 5 & 6 50 Ohms
J5 BNC I/O E: On Channel RF Input (RD) 75 Ohms
J6 BNC
10 MHz Input: Optional External 10 MHz Reference
Input 50 Ohms
J7 BNC 1 PPS Input: Optional External 1 PPS Reference
Input 50 Ohms
J9 N RF Output: On Channel RF Output 50 Ohms
J10 IEC
AC Input: AC input connection to 85-264VAC Source
and On/Off circuit breaker N/A
J11 9 Pos
Male D
Power Monitoring: Provides communication with
System Metering board, which generates forward and
reflected power samples for system metering and
ALC loop control. Also provides an interlock for the
Reject Loads through the System Metering board.
If not used (in systems with no external amplifier) a
jumper from J11-6 to J11-9 needs to be in place.
Refer to Table 3 or information on the connections.
N/A
J12
15 Pos
Female
D
Remote: Provides communication with Remote
Interface Module (A27). Used for CX Exciter remote
control and status indications. Refer to Table 4.
N/A
J13 RJ-45
Serial: Provides communication to System and to
external amplifier drawers, if present. N/A
J14 RJ-45
Ethernet: Optional Ethernet connection. May not be
present in your drawer. N/A
J15
Front
Panel
BNC
RF Sample: Output Sample from Output Detector
Board.
The sample level at J15 is approximately 60dB down
from the output power level of the drawer.
50 Ohms
J16
Front
Panel
9 Pos
Female
D
Serial: Used to load equalizer taps into the
modulator. N/A
Table 2: CX Drawer Connectors
NOTES:
1) If your transmitter (TD) system contains an Optional ASI to S310 Converter, connect
the ASI output of the STL to the ASI in jack on the rear panel of the converter. Connect
the SMPTE-310 Output from the SMPTE 310 Out jack on the rear panel of the converter
module to the input jack J1 on the rear panel of the CX drawer.
2) If your transmitter (TD) system contains an Optional K-Tech receiver, connect the RF
from the receive antenna or one output of the splitter to the input jack J1 on the rear
panel of the K-Tech receiver. Connect the SMPTE 310 Out jack J2 on the rear panel of
the K-Tech receiver to the input jack J5 on the rear panel of the CX drawer.
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3) If the system contains the optional K-Tech back up system, the K-Tech receiver is
bypassed by using the second output of the splitter that connects to J1 on the rear panel
of the CX drawer and connecting a jumper from J4 to J5, after removing the cable from
the K-Tech receiver, on the rear panel of the CX drawer. This configuration uses the
8VSB demodulator board in the CX drawer to produce the SEMTE-310 signal.
4) If the system contains an optional pre-amp, it is connected to the output of the
receive antenna and to J1 on the rear panel of the CX drawer.
5) RF feedback sample lines must not be disturbed when adaptive pre-correction is
enabled. If a sample line is removed, the appropriate pre-correction mode must first be
disabled and only re-enabled after the feedback signal is re-connected. RF feedback
sample #1 is feedback for the non-linear pre-corrector system and sample #2 is used
for the linear pre-corrector system.
6) The adaptive pre-correction systems are likely to be significantly affected if the sense
port is moved to another coupler port with a different level or if a sample level is
changed significantly (a few dB). If the linear pre-corrector system is exposed to this
scenario it may generate a notable ripple in the output that may translate into an
increase (or decrease) of the measured RMS level. Should this situation occur, the only
way to restore proper operation is to reset the linear corrector using the controller's 'Set
To Neutral' command or the web interface's 'Reset Current Curve To Factory' command
and allow the pre-corrector system to start over again.
3.7.1.1 Input Connections
Connect the On Channel RF Input (RD) –78 to –8 dBm signal, or the ASI Input or the
SMPTE-310 Input to the 50 BNC input jack (J1 or J5) located on the rear panel of CX
drawer.
If used, connect the external 10 MHz reference input to the 50 BNC 10 MHz input jack
(J6) located on the rear panel of the CX drawer.
If used, connect the external 1 PPS reference input to the 50 BNC 1 PPS input jack (J7)
located on the rear panel of the CX drawer.
If used, connect the external forward power sample from the pre-filter coupler to the
50 BNC Input C jack (J3) located on the rear panel of the CX drawer.
If used, connect the external forward power sample from the post-filter coupler to the
50 BNC Input D jack (J4) located on the rear panel of the CX drawer.
If your system contains the Optional Internal GLONASS or GPS Kit, the output of the
GPS Antenna connects to the (J5) TNC connector on the rear panel of the CX drawer.
This kit supplies 10 MHz and 1 PPS references for use in the CX drawer.
In Translator (RD) systems there is a SMPTE-310 loop-thru from the output of the
Demodulator Board at J4, mounted on the rear panel of the transmitter or driver drawer,
to the input to the Modulator Board at J5, mounted on the rear panel of the transmitter
or driver drawer. There is a jumper installed from J4 to J5. To feed SMPTE-310 directly
to the Modulator Board, remove the jumper and insert SMPTE-310 into J5. This is only
used in Translator (RD) systems not Transmitter (TD) systems.
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3.7.1.2 Output Connection
The digital RF On-Channel output of the CX drawer is the (J9) 50 “N-type” connector
RF output jack located on the CX drawer rear panel.
The CX drawer RF output is connected to the Amplifier Assembly RF Input. In multi-
amplifier systems, the Amplifier Assembly includes a splitter which feeds the signal to
the individual amplifier drawers.
Note: In dual Exciter systems, the output of the CX drawers will be connected to a
Relay Interface Board, which is part of the Remote Interface and Exciter Switching
system.
In single and dual CX drawer systems with vertically mounted amplifier drawers, all
equipment is mounted in a pre-wired cabinet. The users should use the system block
diagram or interconnect to verify that all CX drawer input and output cables are
connected as some may have been disconnected prior to shipping.
3.7.1.3 Power Monitoring Connections to J11
In systems with one or more external amplifiers, J11 is used to communicate the output
forward and reflected metering voltages back to the driver. J11 is connected directly to
the external amplifier when there is only one external amplifier and is connected through
the system metering module when multiple external amplifiers are used.
In multiple external amplifier systems there are thermal switches mounted on the output
combiner reject loads. The reject load interlock is connected to thermal switches and is
used to shut down the system if the reject load overheats. In systems with no external
amplifier, the only connection used is the Reject Load Interlock, which must be
connected to Supply Return using a jumper from J11-6 to J11-9.
J11
Pin Function
1 +12VDC
2 System Forward Power
3 System Reflected Power
4 System Aural Power
5 Remote Spare Input
6 Reject Load Interlock. (If not used, in systems with no external amplifier, must
be jumpered to J11-9)
7 System Serial +
8 System Serial -
9 Supply Return (If Reject Load Interlock is not used, in systems with no external
amplifier, must be jumpered to J11-6)
Table 3: Power Monitoring Connector J11
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3.7.1.4 Remote Connections to J12
The remote connections for the Innovator CX Series system are made to the Remote 15
Pos Female “D” connector Jack J12 located on the rear panel of the drawer.
NOTE: In dual exciter systems, remote connections are made to the rear panels of the
two drivers.
Remote Signal
Name
Pin
Designation Signal Type Description
System Operate J12-1
Discrete Open Collector Input - A pull
down to ground on this line indicates
that the System is to be placed into the
operate mode. Not Available in dual
exciter systems. (Low = Activate :
Floating = No Change)
Command
System Standby J12-2
Discrete Open Collector Input - A pull
down to ground on this line indicates
that the System is to be placed into the
standby mode. Not Available in dual
exciter systems.
(Low = Activate : Floating = No
Change)
Command
Power Raise J12-3
Discrete Open Collector Input - A pull
down to ground on this line indicates
that the Power of the System is to be
Raised.
(Low = Activate : Floating = No
Change)
Command
Power Lower J12-4
Discrete Open Collector Input - A pull
down to ground on this line indicates
that the Power of the System is to be
Lowered.
(Low = Activate : Floating = No
Change)
Command
System Interlock J12-5
Discrete Open Collector Input - A pull
down to ground on this line indicates
that the Interlock is present. Normally
jumpered to J12-15. (Low = OK :
Floating = Fault)
Set to
Modulation Type
(system specific
and may not be
available)
J12-6
Discrete Open Collector Input. - Sets
the Modulation type of the system.
(Low = Analog : Floating = Digital)
Command
Set Channel
(Set Up 1 or Set
Up 2) - (system
specific and may
not be available)
J12-7
Discrete Open Collector Input. – Selects
one of two possible Channel Setups of
the system. (Low = Set Up 2, CH 2 :
Floating = Set Up 1, CH 1) NOTE: The
Set Up 1 & Set Up 2 settings are
displayed and changed in the
Upconverter Set Up Menus.
Command
Ground J12-8 Ground.
System Forward J12-9 Analog Output - 0 to 4.0 V. - This is a Metering
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Remote Signal
Name
Pin
Designation Signal Type Description
Power Level buffered loop through of the calibrated
“System Forward Power”. Indicates the
System Forward power.
Scale factor is 100 % = 2.0V.
System Aural
Power Level J12-10
Analog Output - 0 to 4.0 V. - This is a
buffered loop through of the calibrated
“System Aural Power”. Indicates the
System Aural power. Scale factor is
100 % = 2.0V. (Not used in Digital)
Metering
System Reflected
Power Level J12-11
Analog Output - 0 to 4.0 V. - This is a
buffered loop through of the calibrated
“System Reflected Power”. Indicates
the System Reflected power.
Scale factor is 25 % = 2.0V.
Metering
Report Input
Status J12-12
Discrete Open Collector Output. -
Indicates if input to system is Normal or
Not.
(Low = OK : Floating = Fault)
Status
Report Fault
Status J12-13
Discrete Open Collector Output. -
Indicates if system is Operating
Normally or has a Fault. Not available in
dual exciter systems.
(Low = OK : Floating = Fault)
Status
Report Operate
Status J12-14
Discrete Open Collector Output. –
Indicates whether system is in Operate
or Standby. Not available in dual exciter
systems.
(Low = Operate : Floating = Standby)
Status
Ground J12-15
Ground. Not Available in dual exciter
systems. Normally jumpered to J12-5.
Table 4: Remote Connector J12
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3.7.2 Vertically Mounted HPA
Figure 10: Vertical Amplifier Assembly w/Three Amplifier Drawers
Port Type Function Impedance
J1 N RF In: On Channel RF from CX driver drawer or
Relay Interface board (dual CX only) 50
J2
7/16”
(1.1cm)
DIN
RF Out: On Channel RF Output 50
J3 N
Monitor: Output Sample from Combiner thru
Coupler. Sample level is approximately 70dB down
from the output power level of the drawer.
50
J7 9 Pos D RS232: Serial interface for factory configuration
J4
Rear
Panel
19 Pos
Metrimate
Provides +/- 12V DC and serial connection for
amplifier control board N/A
J5
Rear
Panel
10MM
Contact
Pin
+50V DC input from power supply shelves N/A
Table 5: Vertical Amplifier Connectors
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ATSC Transmitter/Regenerative Translator Maintenance
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When the amplifier drawers are installed in the Amplifier Assembly the rear panel blind
mate connectors (J4 and J5) are connected to the Amplifier Assembly backplane.
The amplifier drawers also have front panel input and output connectors that must be
connected to the Amplifier Assembly when the transmitter is installed.
• The quadrature splitter RF output must be connected to the RF In (J1) on the
amplifier front panel using the N-male to N-male jumper provided.
• The RF Out (J2) on the amplifier front panel must be connected to the combiner
RF input using the 7/16” DIN-M to 7/16” DIN-M jumper provided.
Note: The vertical amplifier assembly includes an RF monitor N-type connector with a
coupling factor of 60 dB. The RF monitor connector is used to monitor the transmitter
reflected power on the pre-filter coupler.
3.7.3 Optional K-Tech Receiver
If your transmitter (TD) contains an Optional K-Tech receiver and is mounted in a
cabinet with vertically mounted amplifiers, BNC and F-type connectors have been
mounted on the cabinet rear panel at the top of the cabinet. The BNC connector has
been wired to the K-Tech receiver ASI input connector and the F-type connector has
been wired to the K-Tech receiver RF input connector. Note: If the user would like to
feed the K-Tech receiver with an SMPTE 310M input signal, the user should move the
BNC cable on the rear panel of the K-Tech receiver from the ASI input connector to the
S310 input connector.
3.8 Connecting your Transmitter to a TCP/IP Network
To connect your transmitter to a TCP/IP Network you must set up the IP address, subnet
mask, and gateway values of both the Ethernet controller and the modulator. DHCP is
not available for the Ethernet controller but it can be turned on for the modulator
controller. However, both devices should use static IP addressing so that these values
remain constant after a power cycle. Refer to Figure 19.1.13 for setting up the Ethernet
controller and see Figure 19.2.5 for setting up the modulator IP values.
If the transmitter system is pre-wired at the factory and includes a router, the router’s
WAN port should be the connection point to the network. The user must configure the
router’s WAN port for access to the network.
Note: All other devices (Remote Interface panel and CX Exciters) connected to
the router have been configured with a static IP address. The operator can
access the other devices though the router, but the IP addresses must not be
changed. Changing the static IP addresses could prevent communication
between the devices and render the transmitter inoperative.
Contact your local IT administrator for the proper TCP/IP address subnet mask and
gateway settings of your network.
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ATSC Transmitter/Regenerative Translator Maintenance
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3.9 Maintenance
The Innovator CX Transmitters are designed with components that require little or no
periodic maintenance, except for the routine cleaning of air intakes, fans and module front
panels as well as the periodic check of general tightness of hardware.
It is recommended that periodically (the time interval depends on the amount of
movement the cabinet receives) all mounting hardware, holding drawer slides, shelving
and mounting plates inside the cabinet are checked for tightness. All screws and bolts
that are accessible should be tightened initially when the transmitter is received and
periodically thereafter if the transmitter is moved by vehicle. All coaxial connectors, hard-
line connections and hardware holding combiners, splitters, or any other mounted items
should be checked and tightened.
The amount of time between cleanings of the drawers and cabinets depends on the
conditions within the transmitter room. While the electronics have been designed to
function even if covered with dust, a heavy buildup of dust, dirt, or insects will affect the
cooling of the components. This could lead to a thermal shutdown or the premature
failure of the affected drawer. When the front panels of the drawers become dust
covered, the drawer should be pulled out and any accumulated foreign material should be
removed.
NOTE: To remove a drawer from the cabinet, the input and output cables must be
removed from the rear (and/or front) of the transmitter before the drawer can be pulled
out completely from the cabinet.
A vacuum cleaner, utilizing a small, wand-type attachment, is an excellent way to suction
out any dirt from the drawer and cabinet. Alcohol and other cleaning agents should not
be used unless you are certain that the solvents will not damage components or the silk-
screened markings on the drawers and boards. Water-based cleaners can be used, but do
not saturate the components. The fans and heatsinks should be cleaned of all dust or dirt
to permit the free flow of air for cooling purposes.
It is recommended that the operating parameters of the transmitter be recorded from
the LEDs and the LCD system metering on the front panel of the drawer at least once a
month to be used for comparison purposes in case of a failure. It is suggested that this
data be retained in a rugged folder or envelope and stored near the transmitter.
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ATSC Transmitter/Regenerative Translator Turn On Procedure
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Chapter 4 Initial On Site Turn On Procedure
4.1 Turn On Procedure
Once the cabinet, cabinet drawers and the transmission lines have been installed, the
system should first be swept and fine matched through to the Station Load. During the
initial turn-on procedure the system should be tested into a system test load and not the
antenna. The transmitter should be operated in this mode until initial testing is
completed. After the initial turn-on procedure is completed, the output of the transmitter
can be connected to the antenna for normal operation.
NOTE: Check that all installation has been completed before proceeding with the initial
turn-on of the transmitter. Check that the combined RF output of the RF system is
terminated into a dummy load with a rating of at least the rated output of the
transmitter.
• Switch on the Main AC circuit breaker located in the building service panel.
• Switch on the cabinet AC Distribution panel circuit breaker labeled Modulator,
which is connected to the UPS.
• Locate the UPS in the bottom of the cabinet and turn on the power using the front
panel power button.
• Switch on the CX drawer AC power switch which is located on the rear panel. All
other optional devices (K-tech receiver, Ethernet Switch, DC Power Supply) will be
turned on when the UPS is turned on.
• Switch on the cabinet AC Distribution panel circuit breakers HPA-1 and HPA2. The
50 VDC power supply shelves, amplifier assembly blower unit and amplifier
drawers will power on.
• Ensure that the K-Tech receiver is locked to the incoming signal and that there are
no alarms on the CX drawers, remote interface switching panel and amplifier
drawers.
• Place the transmitter in operate. This can be done by pressing the Operate button
on the CX drawers or by using the Web interface. Refer to section 6 of this for
Web interface instructions.
• Monitor the transmitter forward power using the LCD on either of the CX drawers
or via the Web interface. It should increase to 100% in less than 10 seconds.
When the transmitter is placed into operate the individual amplifiers drawers are enabled,
then the CX drawer RF is un-muted and slowly increased to the operating power as set by
the GUI; the default value is 100%. The Operate/Standby LED on the main CX drawer will
turn Green and the Enable LED on the amplifier drawers will turn Green.
WARNING: Do not operate the control amplifier cabinet assembly with the fan assembly
not providing air flow.
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ATSC Transmitter/Regenerative Translator Turn On Procedure
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4.2 Typical System Operating Parameters
Typical Operating Parameters for the external Amplifier Drawer(s)
Parameter Typical Reading
Forward Power 100%
Reflected Power <5%
Power Supply Voltage + 48 VDC
Heatsink Temperature 20º to 30º F/15º to 20º C above ambient temperature
Table 6: Typical Operating Parameters
4.3 Typical Problems, Indications and Causes in CU0TD/RD-2 or -3 Drawer
Problem Indication Cause
No power to
drawer
Operate/Standby and Enable LED
indicators and LCD display are
Off
AC power cord not connected. Main
AC to System missing. On/Off
switch on back of drawer Off. 10
Amp fuse (F1) blown*. Power supply
(A9) not operating
No Output
Signal
Front Panel Status LED is Amber
and blinking with no events,
faults indicated.
On the 8VSB Modulator S310 MPEG
Input Selection Set Up Screen, the
Input is currently set incorrectly to
“from Internal Source”. Set to “from
External Source”.
Loss of Input
Signal Loss of Input on Modulator Menu Loss of input signal.
Loss of
Output Signal
Amber Operate/Standby LED.
Blinking Red Status LED.
Any Event, Fault, which Mutes the
output. Including Input Fault, VSWR
Cutback, Overdrive, Over-
temperature and Overvoltage.
Loss of 48V Power Supply Fault on Power
Supply Menu Power supply not operating
Loss of ±12V
or 5V
Operate/Standby and Enable LED
indicators and LCD display are
Off
Power supply not operating
Table 7: Typical Problems
NOTE: *A spare 10 Amp fuse is provided in the blank fuse holder under the active fuse.
If there is an Event (Fault) occurring in the system, the Status LED on the front panel
will flash RED as long as the Event (Fault) is present. In addition, the menu will jump to
the current Event (Fault) on the display and blink the Event (Fault) continuously, if the
Jump to Fault screen is set to Yes. When the Event (Fault) is corrected, the drawer will
turn the Status LED to AMBER to indicate that there was a Fault and the menu will still
display the Fault but it will not flash. This gives the user the knowledge that there was
an Event (Fault) and what type of Event (Fault) occurred. Before clearing the fault,
check if there were other Events (Faults) by stepping through the menus. To reset the
indication of previous Events (Faults) the user must push the Enter button with the
Event (Fault) Reset Screen displayed. This will reset all previous Events (Faults).
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ATSC Transmitter/Regenerative Translator Turn On Procedure
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Chapter 5 Front Panel Pushbutton and LCD/LED Operation
5.1 CX Drawer
The CX drawer front panel includes a LCD with menu control pushbuttons, Operate and
Standby pushbuttons and several LEDs.
Figure11: CX Drawer Front Panel
1) OPR (operate) pushbutton
2) STBY (standby) pushbutton
3) OPR/STBY LED
4) Status LED
5) LCD
6) LCD menu control pushbuttons (c, d, e, f)
7) Enter pushbutton
8) Serial port
9) Sample port
NOTE: J15 is a Front Panel, 50, BNC RF Sample Jack that provides an RF output
sample from the output detector board in the drawer. The sample level at J15 is
approximately 60dB down from the output power level of the drawer.
Pushbutton Function
OPR Places the system in Operate mode.
STBY Places the system in Standby mode.
ENTER Selects changes made in the LCD menus and sub-
menus.
c (up)
d (down)
Scrolls through the LCD main menus and after entering
a main menu, scrolls through its sub-menus (when
present).
e (left)
f (right)
Used to exit a LCD main menu or sub-menu (when
present).
Table 8: CX Drawer Pushbutton Functions
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ATSC Transmitter/Regenerative Translator Turn On Procedure
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LED Color Description
Green System is in Operate mode. OPR/STBY
Amber System is in Standby mode.
Green CX drawer is functioning normally.
Red
(blinking)
CX drawer Event (fault) is present.
Amber CX drawer Event (Fault) occurred, but the CX drawer is
now operating normally.
STATUS
Amber
(blinking)
CX drawer MPEG input set to internal source (with no
Events [Faults]).
Table 9: CX Drawer LED Indicators
5.2 Vertical Amplifier Drawer
Figure 12: Front View Vertical Amplifier Drawer
Pushbutton Function
DISABLE Disables or enables the power amplifier.
Table 10: Power Amplifier Pushbutton Function
Pushbutton Color Description
OFF Power amplifier is in Operate mode. DISABLE
Red Power amplifier is in Standby mode.
Table 11: Power Amplifier Pushbutton Color Indicators
Monitor
Disable Button
Status LEDEnabled LED
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LED Color Description
OFF Power amplifier is in Standby mode.
Green Power amplifier is in Operate mode and is operating
normally.
ENABLE
Amber Power amplifier is in Operate mode, but is not
operating.
Green Power amplifier is operating normally.
Red (1 blink) Amplifier current fault is present
Red
(2 blinks)
Temperature fault is present.
Red
(3 blinks)
Power supply over voltage fault is present.
Red
(4 blinks)
Power supply under voltage fault is present.
Red
(5 blinks)
Reflected power fault is present.
Red
(6 blinks)
+12V or –12V power supply fault is present.
STATUS
Red
(7 blinks)
AGC overdrive fault is present.
Table 12: Power Amplifier LED Indicators
5.3 LCD Front Panel Screens
An LCD display, located on the front of the Innovator CX drawer, displays the current
operating status of the system. When the drawer is powered On, the LCD will initially
display two splash screens. The first splash screen will be displayed for a few seconds,
then the second splash screen will be displayed for a few seconds and finally the RF
Power Display default screen will be displayed. See typical examples of the screens
below.
NOTE: These screens are typical examples of an operating system; your systems
screens may be different. The RF Power Display default screen will be the screen
displayed if no buttons are pushed to access other screens. While viewing the RF Power
Display default screen, pushing the Left and Right arrow buttons together will also
access the splash screens.
NOTE: In dual exciter systems, the On Air Exciter will display the operating parameters
of the system.
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ATSC Transmitter/Regenerative Translator Turn On Procedure
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5.3.1 Implementation
The first splash screen displayed indicates the manufacturer and the model number of
the UBS-Axcera product.
Figure 13: Splash Screen #1
The second splash screen indicates the Firmware and Version Numbers of the software
used in the system. The example shown is Firmware number 1312423 Version number
6.3a/2.7.
Figure 14: Splash Screen #2
The final screen is the default screen which indicates the Forward Power and Reflected
Power for the system.
Figure 15: Splash Screen #3
The user can scroll through the following screens by using the buttons to the right of the
LCD display. Pushing and releasing the Up & Down Arrows will scroll through the Main
Menus (level 1), which are shown on the following pages and are aligned on the left side
of the page.
The Sub-menus (level 2) are accessed by pushing and releasing the ENTER button. Once
in the Sub-menu (level 2), the user can scroll through the menu items (level 3) listed in
the Sub-menus (level 2) by pushing and releasing the Up & Down Arrows. The Sub-
menus (level 2) are shown on the following pages, indented to be below the Main Menus
(level 1).
The sub-menus (level 3) of the Sub-menus (level 2) are indented to be under the Sub-
menu (level 2) in which they are contained.
In the Set-up Menus, changes are made to the display by Pushing and releasing the
ENTER button. This will cause the item, which is to be changed, to blink. The user can
then press the left and right arrow buttons to display the new parameter. Finally, pushing
the ENTER button will accept the changes made upon exit of the Set-up Menu.
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ATSC Transmitter/Regenerative Translator Turn On Procedure
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NOTE: An example of accessing and changing a parameter using the Set-up Menus is as
follows. This procedure is to set the Off Air Receive Channel to the desired channel.
• Push and release the DOWN Arrow button until the SYSTEM SET-UP Main Menu is
displayed.
• Push and release the ENTER button and the Authorization Warning screen is
displayed.
• Push and release the ENTER button again and the ENTER BUTTON SETS TO
CHANGE MODE screen is displayed.
• Push and release the ENTER button again and the first set-up menu, which is the
SET-UP MENUS OF CHASSIS VALUES screen is displayed.
• Push and release the DOWN Arrow button until the SET-UP 8VSB DEMODULATOR
screen is displayed.
• Push and release the ENTER button to display the submenus under the SET-UP
8VSB DEMODULATOR menu.
• Push and release the DOWN Arrow until the 8VSB DEMODULATOR USE OFF AIR
CHxx is displayed.
• Push and release the ENTER button and the XX, which indicates the Channel
Number, will blink.
• Push and release the UP or DOWN Arrow button until the desired new channel
number is displayed.
• Push and release the ENTER button, and the PUSH ENTER TO ACCEPT CHANGES
menu is displayed.
• Push and release the ENTER button again to accept the changes made. The
channel is now changed.
• Push and release the LEFT Arrow to exit to the SET-UP 8VSB DEMODULATOR
screen.
• Push and release the LEFT Arrow again to exit to the SYSTEM SET-UP Main Menu.
• Push and release the UP or DOWN arrows to browse the main menus.
The following screens are typical of an operating system. The values indicated on the
screens in your system may vary from those shown below.
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ATSC Transmitter/Regenerative Translator Turn On Procedure
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5.3.2 Operation Screens
NOTE: The following Operation screens provide operating information only. No
adjustments are available using these screens.
Figure 16: Transmitter Forward Power Screen
This is the default screen that is displayed after the splash screens are displayed. This
screen provides an indication of the Output Power of the transmitter in terms of Percent
(typically 100%). The screen also provides an indication of the Reflected Power of the
transmitter in terms of Percent (typically less than 5%). Push the DOWN Arrow to view
the next main menu, which is the Transmitter Fault Log Main Menu.
Figure 17: Transmitter Event Log Main Screen
This is the Transmitter Event Log Main Screen. Push the ENTER button to access the
Fault List submenu. Push the DOWN Arrow to view the next main menu, which is the
Transmitter Details Main Menu.
Figure 17.1: Transmitter Event List Screen
When events occur, they will be displayed on this screen. The Up and Down
arrow will scroll you through the different entries in the event log. The above
screen indicates the 001 event of 013 total events that have occurred in the
Transmitter. The number in the parenthesis on the top right, is this case 01,
indicates the number of times the displayed event has occurred. The bottom line
scrolls to indicate the event that occurred, in this case RF Interlock Fault, and the
time the event occurred after the prior event. Push the LEFT Key to exit to the
Transmitter Event Log Main Menu screen. Pushing the RIGHT Key will access the
Event Reset Screen.
Figure 17.2: Event Reset Screen
This screen allows the user to reset the event log, after they are observed or
corrected. NOTE: Resetting the events on an amplifier may cause the
transmitter to momentarily mute.
Figure 17.3: Event Reset Old Faults Screen
This screen allows the resetting of old faults that are latched from the event log
after they are observed or corrected. The transmitter can be configured to latch
faults as detailed in Figure 19.1.4. That means that if a fault occurs and then it
clears, the status of the parameter in the details screen will not blink indicating
an active fault, but it will still show fault indicating that previously this parameter
was faulted. Within the web pages, a latched fault is shown with an orange
background while faulted parameters are shown in red and good values are
shown in green. Resetting Old Faults will clear the latched fault and the display
will show the value as OK or with other text that indicates that it is not faulted.
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ATSC Transmitter/Regenerative Translator Turn On Procedure
Instruction Manual, Rev. 0 41
Figure 18: Transmitter Details Main Screen
This is the Transmitter Details Main Screen. Push the ENTER button to access the
Device Details Chassis Values Main Sub Screen. Push the DOWN Arrow to view the next
main menu, which is the Transmitter Set -Up Main Menu.
Figure 18.1: Transmitter Device Details Chassis Values Screen
This is the Transmitter Device Details Chassis Values Main Sub Screen. Push the
ENTER button to access the Device Details Chassis Values submenus. Push the
DOWN Arrow to view the next main submenu, which is the Modulator Sub Menu.
Figure 18.1.1: Transmitter Driver Forward/Reflected Power Details Screen
This screen provides an indication of the Output Power of the Driver
Drawer in terms of Percent, typically 20-70%, when there are external
amplifiers in the system. In single drawer systems, the driver power is
actually the system power. It may be 100% when used as stand alone
transmitter. This screen also provides an indication of the Reflected
Output Power of the Driver Drawer in terms of Percent, typically less than
3%.
Figure 18.1.2: Heatsink Temperature Details Screen
This screen indicates the temperature of the amplifier heatsink assembly,
mounted in the transmitter or driver drawer, in degrees Fahrenheit. If the
temperature is below the trip point, it will indicate OK. Typically, the
temperature is 15ºC to 20º C above ambient temperature.
Figure 18.1.3: Power Supply Voltage Details Screen
This screen shows the power supply voltage in the transmitter or driver
drawer. If the power supply voltage is below the trip point, it will indicate
OK.
Figure 18.1.4: External Interlock Details Screen
This screen indicates if an external interlock is present in your system.
Typically Present - it must be present or system will remain in Standby.
Figure 18.1.5: Reject Load Interlock Details Screen (BTD/BRD)
This screen indicates if the external Reject Load interlock is present in
your system. Typically Present – it must be present or system will remain
in Standby.
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ATSC Transmitter/Regenerative Translator Turn On Procedure
Instruction Manual, Rev. 0 42
Figure 18.1.6: AGC Details Screen
This menu indicates if the AGC circuit has an input. An AGC input fault
indicates that there is no RF input to the board, which could occur if
anything before it fails.
Figure 18.1.7: AGC Overdrive Details Screen
This menu indicates if the AGC circuit is operating within its range.
Figure 18.1.8: AGC Auto/Manual Details Screen
This menu indicates if the AGC circuit is operating in Auto or Manual.
Figure 18.1.9: ALC Voltage Level Details Screen
This menu indicates the Auto ALC voltage setting, typically 1 to 5 V.
Figure 18.2: Modulator Device Details Screen
This is the Transmitter Device Details Modulator Main Sub Screen. Push the
ENTER button to access the Device Modulator submenus. Push the DOWN Arrow
to view the next main submenu, which is the Upconverter Sub Menu. Push the
LEFT Arrow to go back the Main Device Details Screen. Then push the DOWN
Arrow to access the Transmitter Set -Up Main Menu.
Figure 18.2.1: Digital Modulator Identification Screen
This menu provides access to screens that display the Modulator's Date
and Time or the Modulator's Site ID.
Figure 18.2.1.1: Digital Modulator Time Set Date Set Screen
This Screen displays the Modulator's date and time to allow
confirmation that the communications system between the
Innovator CX and the Digital Modulator is operational.
Adjustments to the date and time are available through the Digital
Modulator's web pages.
Figure 18.2.1.2: Digital Modulator Site ID Set Screen
This Screen displays the Digital Modulator's Site ID which confirms
that the communications system between the Innovator CX and
the Modulator is operational. Adjustment to the Site ID is available
through the Modulator's web pages.
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ATSC Transmitter/Regenerative Translator Turn On Procedure
Instruction Manual, Rev. 0 43
Figure 18.2.2: Digital Modulator Signal Status Screen
This menu provides access to screens that display the status of the Digital
Modulator's signals. As these are detail screens, they are read only and
not adjustable. They provide basic feedback on the configuration of the
Digital Modulator. Configuration is completed through the Modulator's
web pages.
Figure 18.2.2.1: Digital Modulator Primary Path A Set Screen
This Screen indicates the status of the Primary Input Path A.
Configuration is completed through the Digital Modulator's web
pages.
Figure 18.2.2.2: Digital Modulator Secondary Path B Set Screen
This Screen indicates the status of the Secondary Input Path B.
Configuration is completed through the Digital Modulator's web
pages.
Figure 18.3: Upconverter Device Details Screen
This is the Transmitter Device Details Upconverter Main Sub Screen. Push the
ENTER button to access the Device Upconverter submenus. This is the final
Device Details Main Sub Menu. Push the LEFT Arrow to go back the Main Device
Details Screen. Then push the DOWN Arrow to access the Transmitter Set-Up
Main Menu.
Figure 18.3.1: Upconverter 10 MHz Details Screen
This menu indicates if the 10 MHz reference used is generated internally
or provided by an external reference source, such as a GPS.
Figure 18.3.2: Upconverter Transmitter Channel Details Screen
The upconverter transmit channel screen indicates the channel that the
upconverter is currently set and the center frequency of that channel.
Displayed above is CH: 47 that has a Center Frequency of 671MHz.
Figure 18.4: External Amplifier Device Details Screen
This is the Transmitter Device Details External Amplifier Main Sub Screen. This is
the final Device Details Main Sub Menu. Push the ENTER button to access the
Device External Amplifier #1. Push the LEFT Arrow to go back the Main Device
Details Screen. Then push the DOWN Arrow to access the Transmitter Set-Up
Main Menu.
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Instruction Manual, Rev. 0 44
NOTE: Shown below are the External Amplifier #1 Details Screens. The External
Amplifier #2, #3 or #4 Details Screens are presented in the same order if they are
present in the system.
Figure 18.4.1: External Amplifier #1 Forward Power Details Screen
Indicates the Output Power for external amplifier #1.
NOTE: See the final test data sheet for the typical value.
Figure 18.4.2: External Amplifier #1 Reflected Power Details Screen
Indicates the Reflected Power for external amplifier #1.
NOTE: See the final test data sheet for the typical value.
Figure 18.4.3: External Amplifier #1 I1-A1 Current Details Screen
Indicates the Current of the A1 device in the external amplifier #1.
NOTE: See the final test data sheet for the typical current value.
Figure 18.4.4: External Amplifier#1 I2-A2 Current Details Screen
Indicates the Current of the A2 device in the external amplifier #1.
NOTE: See the final test data sheet for the typical current value.
Figure 18.4.5: External Amplifier#1 I3-B1 Current Details Screen
Indicates the Current of the B1 device in the external amplifier #1.
NOTE: See the final test data sheet for the typical current value.
Figure 18.4.6: External Amplifier#1 I4-B2 Current Details Screen
Indicates the Current of the B2 device in the external amplifier #1.
NOTE: See the final test data sheet for the typical current value.
Figure 18.4.7: External Amplifier #1 A Power Supply Details Screen
Indicates the voltage of the A power supply in the external amplifier #1.
NOTE: Typical voltage value is +42VDC nominal.
Figure 18.4.8: External Amplifier #1 B Power Supply Details Screen
Indicates the voltage of the B power supply in the external amplifier #1.
NOTE: Typical voltage value is +42VDC nominal
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ATSC Transmitter/Regenerative Translator Turn On Procedure
Instruction Manual, Rev. 0 45
Figure 18.4.9: External Amplifier #1 A Temperature Details Screen
Indicates the temperature of heatsink A in the external amplifier #1.
NOTE: Typical temperature for DVB = 20-30°C above ambient.
Figure 18.4.10: External Amplifier#1 B Temperature Details Screen
Indicates the temperature of heatsink B in the external amplifier #1.
NOTE: Typical temperature for DVB = 20-30°C above ambient.
Figure 18.4.11: External Amplifier #1 Code Version Details Screen
Indicates the code version in the external amplifier #
5.3.2 Set-up Screens
Figure 19: Transmitter Set-Up Main Screen
This is the Transmitter Set-Up Main Screen. Push the ENTER button to access the
Authorization Warning Main Sub Screen. This is the final Main Screen, pushing the
DOWN Arrow will take you back to Transmitter Details Main Menu.
The Set-Up item or parameter that can be changed on the displayed sub menu screen, is
indicated by pushing the ENTER button, which causes the changeable item to blink. The
UP or DOWN arrow will change the selection until the desired result is displayed.
Pushing the ENTER Button will accept the change.
Figure 19A: Authorized Personnel Screen
This screen of the transmitter notifies an operator that they are only to proceed if
they are authorized to make changes to the transmitter's operation. Changes made
within the following set-up screens can affect the transmitter’s output power level,
output frequency, and the general behavior of the transmitter. Please do not make
changes within the transmitter's set-up screens unless you are familiar with the
operation of the transmitter. Pressing the ENTER button will display the Enter Key
Sets to Change screen.
Figure 19B: Right Key Sets to Change Mode Screen
This screen informs the operator that to make changes, the Right key or the Enter
key must be pushed, which will cause the display that can be changed to blink. Use
the up or down key to change the display and the left or right key to move the
blinking item on the display. After changes are made in the Set-Up Menus pushing
the enter Key, Button, will accept the changes made. With the Right Key Sets To
Change Mode screen displayed, pushing the ENTER button will access the first main
submenu under the Set-Up main menu, which is the Chassis Values Set-Up Menu.
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Figure 19.1: Chassis Values Main Set-Up Menu Screen
This is the Transmitter Set-Up Chassis Values Main Sub Screen. Push the ENTER
button to access the Chassis Values submenus. Push the DOWN Arrow to view
the next Set-Up Main Sub Screen, which is the Set-Up Upconverter Main Sub
Screen.
Figure 19.1.1: Chassis Values Forward Power Set-Up Screen
This screen allows remote or front panel adjustment of the output power
of the transmitter. The bar graph indicates the range remaining in the
adjustment.
NOTE: If the transmitter's output power is being adjusted through the
web page, the transmitter's forward power will be blinking on this screen.
It will remain blinking while the transmitter is adjusting to the desired
target power level.
Figure 19.1.2: Chassis Values Model Number Set-Up Screen
This screen allows the set-up of the Model Number of the transmitter.
This causes the system to access the proper parameters to be displayed
on the LCD screens.
NOTE: Do not change this screen without first consulting with UBS-
Axcera.
Figure 19.1.3: Chassis Values Jump to Menu on Fault Set-Up Screen
The 'Jump To Menu' setting screen allows an operator to change how the
transmitter's display system works. When this value is set 'ON' and a new
fault occurs, the transmitter will automatically change the display screen
to show the new fault condition. When this value is set 'OFF', the display
screen does not change when a new fault is detected.
Figure 19.1.4: Chassis Values Latch On a Fault Set-Up Screen
This screen, by selecting ON, allows the user to select that the system will
latch the fault if it occurs, then if the problem is corrected the fault will
still register. Since latched faults are used to set the status LED color.
When fault latching is OFF, the status LED should only be green if there
are no faults or red if there are one or more active faults. When fault
latching is ON, the status LED will be amber if there are no current faults
but a fault was previously detected and is now a latched fault. A blinking
amber status LED indicates that there are no current faults or latched
faults but that an internal signal source is selected instead of an external
source.
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Figure 19.1.5: Chassis Values External Amplifier Fault Number Set-Up
Screen
1 2
This screen allows the user to set the number of faults that are allowed
before the external amplifier is disabled. NOTE: Only used with external
amplifiers are in the system.
Screen 1: If One Fault is selected and a fault occurs in an external
amplifier, the entire transmitter is muted and the faulted external
amplifier is latched off. The transmitter is then unmuted and any external
amplifiers (fully or partially operational) are enabled.
Screen 2: If Three Fault is selected and a fault occurs in an external
amplifier, the entire transmitter is muted and unmuted three times before
the faulted external amplifier is latched off.
NOTE: Faulted amplifier sections are re-enabled when latched faults are
cleared in the event log. See Table 9.1 for more information on clearing
the logs.
Figure 19.1.6: Chassis Values IF Processor Selection Screen
This screen allows the user to select that the system has an IF Processor.
Figure 19.1.7: Chassis Values Downconverter Selection Screen
This screen allows the user to select that the system has a
Downconverter.
Figure 19.1.8: Chassis Values Amplifier Power Supply Voltage Screen
This screen allows the user to select the Power Supply Voltage.
Figure 19.1.9: Chassis Values Forward Power Fault Adjust Screen
This screen allows the operator to configure a forward power fault
threshold setting. When the exciter is enabled for at least a few seconds
and the system forward power is not greater than or equal to this setting,
a fault is indicated on the status LED and also on the remote fault
indicator pin.
Figure 19.1.10: Chassis Values number of Amplifiers in System Screen
This screen indicates the number of external amplifier drawers in the
system. By selecting the enter key, the system will scan to find the
number of external amplifier drawers.
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ATSC Transmitter/Regenerative Translator Turn On Procedure
Instruction Manual, Rev. 0 48
NOTE: Do not change this screen without first consulting with UBS-
Axcera.
Figure 19.1.11: Chassis Values Ethernet Option Set-Up Screen
This screen is only displayed if Ethernet Controller is not present in your
system.
Figure 19.1.12: Chassis Values Reset Ethernet User Name Set-Up Screen
When the optional Ethernet Controller is present, this screen is displayed.
It is used to reset the first username / password account of the Ethernet
controller. There are a total a five accounts available on the Web. If this
operation is selected, ON, and the change accepted, only the fist
username / password account file is replaced, with the user name set to
‘admin’ and the password set to ‘UBS-Axcera’.
Figure 19.1.13: Chassis Values Ethernet Address Set-Up Screen
When the optional Ethernet Controller module is present, this screen is
used to view or change the Ethernet TCP Address of the controller.
Figure 19.1.14: Chassis Values Ethernet Netmask Set-Up Screen
When the optional Ethernet Controller module is present, this screen is
used to view or change the TCP subnet mask of the Ethernet controller.
Figure 19.1.15: Chassis Values Ethernet Gateway Set-Up Screen
When the optional Ethernet Controller module is present, this screen is
used to view or change the TCP gateway (router) address of the Ethernet
controller.
Figure 19.2: Modulator Main Set-Up Menu Screen
This is the System Set-Up Modulator Main Sub Screen. Push the ENTER button to
access the Set-Up Modulator submenus or push the DOWN Arrow to view the
next Set-Up Main Sub Screen, which is the Set-Up Upconverter Main Sub Screen.
NOTE: Refer to the description in Table 30B for how to change the values on the
following set-up screens.
Figure 19.2.1: Modulator Primary Input Selection Set-Up Screen
This screen allows the user to select between an A and a B source input to
the modulator. When set to automatic, the modulator will automatically
sense an input and chose that input as the primary input.
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ATSC Transmitter/Regenerative Translator Turn On Procedure
Instruction Manual, Rev. 0 49
Figure 19.2.2: Modulator Secondary Input Selection Set-Up Screen
This screen allows the user to select a secondary input source to the
modulator.
Figure 19.2.3: Modulator Linear Equalization Selection Screen
This screen controls the operation of the linear equalizer. When set to
ON, the modulator applies linear correction to the IF output. When set to
OFF, no correction is applied to the IF.
Figure 19.2.4: Modulator Non Linear Equalization Selection Screen
This screen controls the operation of the non linear equalizer. When set
to ON, the modulator applies non linear correction to the IF output. When
set to OFF, no correction is applied to the IF.
Figure 19.2.5: Modulator Values IP Address Set-Up Screen
This screen is used to view or change the IP Address of the modulator.
Figure 19.2.6: Modulator Values IP Netmask Set-Up Screen
This screen is used to view or change the IP subnet mask of the
Modulator.
Figure 19.2.7: Modulator Values IP Gateway Set-Up Screen
This screen is used to view or change the IP gateway (router) address of
the Modulator.
This is the final screen in the Transmitter Set-Up Modulator Main Sub Screens.
Push the down arrow to repeat the Modulator Main Sub Screens or Push the LEFT
Arrow to go back the Modulator Main Set-Up Screen.
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ATSC Transmitter/Regenerative Translator Interface Description
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Chapter 6 Innovator CX Series Web Ethernet Interface Kit
6.1 Introduction
The Innovator CX Series transmitter is available with an optional Web Ethernet interface
package (1313100). Another Web Ethernet Interface package that provides an SNMP
interface to transmitter parameters and serves HTML web pages is available (1316423).
This option may be added to the Innovator CX Series transmitter if it was not originally
installed at the factory. NOTE: If an ATSC modulator is present in your system, please
refer to the ATSC Modulator section of this manual for more information on the ATSC
modulator Web Interface.
NOTE: Mozilla Firefox is the preferred browser for this Web Ethernet interface kit.
6.2 Logging In
Figure 20: Typical Web Interface User Log In Page
Once a connection has been established, the Web interface can be launched by entering
the IP address of the Innovator CX Ethernet Controller (as a URL) in the browser of the
remote computer. A login page will be displayed prompting the user to enter a User
Name and Password, which are case sensitive.
The controller has three levels of user access: Administrative, Read/Write and Read
Only. Administrators have full access to transmitter controls and controller
configuration. Read/Write users have full access to transmitter controls and can change
all controller configurations except for the user name and password accounts. Read
Only users can view all transmitter parameters and the event log entries but they can
not change the transmitter's state, clear faults, clear the event log or configure the
Ethernet parameters.
Five unique login accounts are available. The factory default user name and password
for account number one is:
User Name Password Access Level
admin axcera Administrator
The user name and password of account number one may be reset to factory default
values through a transmitter setup page.
Indicates SNMP with package software version and
number of users currently on-line.
NOTE: Only 5 simultaneous on-lines users are allowed.
Unique Site ID value
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6.3 Main Control/Monitoring Page
After logging in, the main control/monitoring page is displayed. Administrators have the
ability to change the transmitter's operate/standby state, and configure the application.
All users have the ability to view the transmitter's event log, and review system
parameters. Refer to Figure 21 or 22 for a sample of the main control/monitoring page.
Figure 21: Web Interface Main Control/Monitoring Page
Figure 22: Web Interface Main Control/Monitoring Page with External Amp.
T
his command button opens the modulator's web pages.
T
his command button places the transmitter in Operate.
T
his command button switches to the Events Log page.
Activate this command button to configure the transmitter.
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD CX Series Web Ethernet
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The buttons at the top of the page allow the user to access a number of status and
configuration pages. For systems with external amplifiers, an additional Ext. Amp Status
button is available.
To place the transmitter in Operate mode, the user must click on the ‘Operate’ button –
see Figure 21. When the transmitter is in operate mode, Operate/Standby, found under
System Status, will be highlighted Green and will indicate operate. To place the
transmitter in standby mode, the user must click on the ‘Standby’ button – see Figure
22. When the transmitter is in standby mode, Operate/Standby, found under System
Status, will be highlighted yellow and will indicate Standby.
System Status will display the status of a number of overall transmitter system
parameters. These include Operate/Standby status, forward and reflected power levels
(as a percentage), reject load status and RF system interlock status. Model number and
software revisions are also displayed.
Driver Status will display the status of a number of CX drawer low power amplifier
parameters. These include forward and reflected power levels (as a percentage),
heatsink temperature and power supply voltage.
ALC Board Status will display the status of a number of CX drawer ALC board
parameters.
Color Key:
Green = Okay or Normal Operation
Yellow = Warning, But Not faulted
Red = Currently Active Fault
Orange = Old or Previously Latched Fault
If an item on page is Orange, a latched fault is present. Activating the 'Fault Reset'
button will reset any latched faults, clear the transmitter's event log and cause the
parameter to display normally.
The date and time of the last message received by the web page browser is present to
assure connectivity. If the browser does not receive a new set of data from the Ethernet
Controller, it will show the last update field with a yellow background indicating a
connection problem is present.
From the main page, administrators and accounts with read/write access may change
the Web interface settings by activating the ‘Configure’ button near the top of the
page.
The user can return to the main control/monitoring page by selecting the 'Back' button.
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD CX Series Web Ethernet
ATSC Transmitter/Regenerative Translator Interface Description
Instruction Manual, Rev. 0 54
6.4 External Amplifier Status Page
The user can access the external amplifier status page by selecting the 'Ext. Amp
Status' button on the CX Ethernet Controller main control/monitoring page.
Figure 23: External Amplifier Status Page
The external amplifier status page allows the user to view the forward and reflected
power as well as the driver current, pallet current, supply voltage and temperature for
each external amplifier in the transmitter system.
The user can return to the main control/monitoring page by selecting the 'Back' button.
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Instruction Manual, Rev. 0 55
6.5 View Events Page
The user can access the transmitter's event log by selecting the 'View Events' button
on the CX Ethernet Controller main control/monitoring page.
Figure 24 Typical Event Log Page
This page allows the user to view events and to determine the time between events.
Events are logged in the order they are received. If more than 200 events are detected,
the transmitter's System Controller drops the oldest event to record the new event.
Transferring of events from the transmitter's System Controller and the Ethernet
Controller is scheduled so that device details are continuously monitored. Therefore the
event log page may update a few seconds behind the transmitter display when the log is
full or changing quickly.
Each event record indicates the event number, the number of events, an occurrence
counter and text describing the event. The occurrence counter keeps track of the
number of times a specific event has occurred since the log was last cleared. Up to 99
occurrences are available for each event.
To view the next set of twenty events, activate the 'Next' button. If viewing events
higher in the log, the 'Previous' button allows you to return to prior events.
The user can return to the main control/monitoring page by selecting the 'Back' button.
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6.6 Configure Page
The user can access the configuration page by selecting the 'Configure' button on the
CX Ethernet Controller main control/monitoring page.
Figure 25: Configuration Page
NOTE: The Innovator CX Ethernet controller does not use DHCP addresses – TCP/IP
settings must be fixed and entered manually. A crossover cable may be needed if
connecting directly from a computer to the Innovator CX drawer.
Note: If the transmitter system is pre-wired at the factory and includes a
router and Remote Interface Panel, CX drawers connected to the router have
been configured with a static IP address. The operator can access the CX
drawers though the router, but the IP addresses must not be changed.
Changing the static IP addresses of the CX drawers could prevent the drawers
from communicating with other devices in the system and render the
transmitter inoperative.
When entering a site ID, be sure to not use special characters except underscores,
dashes, and forward slashes.
The page above displays SNMP parameters and allows an operator to send a test trap.
If this system did not have SNMP enabled, then fields would not be populated and the
'Send Test Trap' button would not be present. New event log entries including an
activated test trap are automatically forwarded to SNMP agents specified to receive trap
messages. Trap messages do not need to be acknowledged by an agent.
Changes to the transmitter's output power are available to administrators when the
transmitter is operating. Once changed, the menu defaults back to the main display
page and the systems forward power is noted as changing.
To manage user accounts, administrators may click the ‘Manage Accounts’ button near
the top of the configure page.
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Figure 26: Manage Accounts Page
The Innovator CX Ethernet controller supports up to 5 different user accounts. To add or
change one of the accounts, click the ‘Add/Change’ button in the row of the account you
want to modify. Enter the desired name, password, and administrator or read/write
access rights for the user and click save.
NOTE: The transmitter's set up menus contain a Reset Ethernet User ID page. This
page allows a user to reset the first account User Name and Password. The Yes or No
selection can be changed by pushing the Up or Down Button. After the selection has
been made, the user needs to depress the right or left arrow and then the display will
ask “PUSH ENTER TO ACCEPT CHANGES”. If the ENTER button is depressed, the change
will be accepted. If any other button is depressed, the change will not be made. If Yes
is selected on the page, and accepted, the User name and Password will reset to the
factory default of admin / axcera.
Activate the 'Back' button to return to the main control/monitoring page.
When you have completed using the web interface, please remember to log out via the
'Logout' button at the top of the control/monitoring page.
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Chapter 7 Innovator CX Series SNMP Interfaces
7.1 Introduction
The Innovator CX Ethernet Controller implements Simple Network Management Protocol
(SNMP). SNMP is a standardized method of transferring information from one electronic
device to another. SNMP is typically used to remotely control and monitor several
transmitter devices from a centralized network management system (NMS). SNMP is a
communication method between two applications and is not a graphical user interface.
Therefore, SNMP functionality is included along with web page server functionality.
SNMP is used to gather information or set control states but it requires additional
computer applications for operator monitoring and control.
The Innovator CX Ethernet Controller implements SNMP version 2 (SNMP v2), using a
Management Information Base (MIB). The MIB file defines all SNMP parameters of the
transmitter, specifies the format of data, and orders the presentation of the parameters
using a hierarchical namespace containing object identifiers (OID). Each OID identifies a
variable that can be read, read and set, or only set via SNMP commands.
SNMP functionality also provides for alert messages that are issued from the Ethernet
Controller to one or two network computers. A SNMP trap message is sent only once
and is not acknowledged by the receiving device. The Ethernet Controller issues a trap
message when data is added to the transmitter Event log (either activation of a fault or
when a fault is cleared), or when the transmitter operate/standby status changes.
7.2 SNMP Configuration
The Ethernet Controller's TCP/IP Address, Subnet Mask, and Gateway must be
configured with static values that are valid within your network. Dynamic Host
Configuration Protocol (DHCP) is not implemented; however access to these
configuration parameters is available through the front panel setup menus of the
Innovator CX drawer.
The Innovator CX drawer’s SNMP MIB allows up to two SNMP trap destinations. The trap
destination values can be set through WEB pages. The TCP/IP address of a trap
processing computer can also be configured through the SNMP parameters called
'site_trap_adr1' and 'site_trap_adr2'. To clear a previously configured trap destination
and cause the system not to issue traps to a specific address, set the value to
'000.000.000.000'.
Reading of SNMP values is done with the message's community access set to 'public'.
When setting SNMP values, a default community access level of 'private' is used. Future
implementations of the Ethernet SNMP agent may allow for the set community access
level to be defined through the device's web server.
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Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD 8VSB ATSC Modulator
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Instruction Manual, Rev. 0 61
Chapter 8 8VSB ATSC Modulator Board
Access to view the Modulator Web Interface is available by selecting the 'Modulator
Status' button on the CX Ethernet Controller main control/monitoring page.
The modulator requires a valid username and password for login access. When launched
from the Axcera CX Ethernet Controller Web interface, the login address of username /
password information is automatically included in the login script. Since username and
passwords of the modulator are fixed, we recommend modulator Web pages are only
launched from the main CX Ethernet Controller Web page using the modulator command
button.
NOTE: Mozilla Firefox is the preferred browser for this modulator Web interface.
Three levels of access are provided:
1. Administrators have full read/write control of the modulator and they can
configure all system parameters of the modulator.
2. Operator has read/write control of most modulator parameters and limited ability
to configure system parameters.
3. Observer has read only access to the modulator parameters.
Figure 21: Sample Modulator Page
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD 8VSB ATSC Modulator
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The modulator's Web page contains an upper form and three lower forms – see Figure
21. The upper form always shows a graphical representation of the modulators system.
A Block of the upper form can be dragged into any one of the three lower forms to view
specific details of the specific system. In the above figure, the "Switching" block of the
Input System was dragged into the lower left form. The GPS Reference block was
dragged into the lower middle form and the Pre-correction Nonlinear block was placed
into the lower right form.
Figure 22: Additional Forms
Activating the "System" icon, located at the lower left corner of the page accesses
additional forms – see Figure 22. The sample page above is typical of forms available to
an administrator. Operators and Observers will have different forms available.
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Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD Board Descriptions
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Instruction Manual, Rev. 0 64
Chapter 9: Descriptions of Boards in the CLV1TD/RD through CLV4TD/RD
Systems
9.1 CX Drawer Boards
9.1.1 (A1) 8 VSB Demodulator Board (1308275)
NOTE: The 8 VSB demodulator board is only used in RD systems except when the
output of an external K-Tech Receiver is used.
9.1.1.1 Overview
The 8 VSB demodulator assembly receives an off air 8 VSB signal on any VHF or UHF
channel and demodulates this to an MPEG-2 transport stream that is per the SMPTE-
310M standard. The input to the assembly is at an “F” style connector on the shielded
tuner and can be at a level of –8 to –78 dBm. The tuner (TU1) down converts the RF
channel to a 44 MHz IF signal. This signal is the input to the digital receiver chip U1.
The digital receiver chip subsequently decodes the IF and delivers an MPEG-2 transport
stream on a parallel data bus to a programmable logic array, U8. U8 clocks the
asynchronous MPEG data from the receiver chip and outputs a synchronous data stream
at a 19.39 MHz rate to buffer/driver U11. U11 subsequently drives the output at J13 to
a lower level that is AC coupled out of the board.
9.1.1.2 Microcontroller Functions
A microcontroller, U17, is provided on this assembly to supervise the operation of the
receiver chip and the tuner. In addition, the microcontroller also interfaces to the front
panel LCD display via connector J24 and pushbutton interface on J27. On power up, the
microcontroller sets the tuner to the last channel that was selected when the unit was
powered down. In addition, the microcontroller also configures the digital receiver to
operate as an 8 VSB receiver. The communication between all of the devices on this
board is via an I2C serial bus that is local to this board.
9.1.1.3 Jumper and DIP Switch Settings
This board can be used in various assemblies. When this assembly is installed in the
Innovator CXB product, the jumpers on J7 and J8 should be placed between pins 2 and 3
for normal operation. The DIP switch SW1 should be configured as indicated in Table
12.
Position Function When Switch is Off When Switch is On
SW1-1 Tuner Type Original Tuner
(DTT765xx) Recent Tuner (DTT7680x)
SW1-2 Signal Strength Gain Gain = 8.0 Gain = 9.3
SW1-3 Special Channel Plan Normal Channels 2, 3, or 4 are offset
up 4 MHz
SW1-4 Reserved for Future
SW1-5 Reserved for Future
SW1-6 Reserved for Future
SW1-7 Reserved for Future
SW1-8 Operation Type Transcoder Operation Innovator CX/CXB Operation
Table 40: Innovator CX Receive /Demodulator/Transcoder Dip Switch SW1
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NOTES: SW1-8 operation is available in software versions greater than or equal to 2.3
with hardware versions greater than or equal to D0, unless the board was factory
modified. These switch positions are factory set for your system and should not be
changed.
9.1.2 (A8) Control Card, Innovator CX (1312543)
The Innovator CX control board provides the overall system control for the CX system.
There are two main elements of the board, U7 and U9. U7 is a programmable logic
device that is loaded with firmware, which provides the overall system control. It
decides whether or not to allow the system to generate RF output power, and turns the
+40 VDC power supply on and off depending on whether or not it is receiving any faults,
either faults generated on board, or faults generated externally. The second major
component of the board is the microcontroller U9, which controls the front panel
indications and drives the display. The U9 microcontroller is not involved in the decision
making process, U7 does that. Rather, it is layered on top of U7 and is the EPLD's
interface to the outside world. Information is passed between the microcontroller and
the EPLD. The microcontroller communicates information to and from the front panel
and sends the EPLD the information it needs to decide whether or not to allow the
system to turn on. The front panel viewable LEDs DS3 for Operate/Standby and DS4 for
Status indicate the current operating condition of the system are mounted on and
controlled by this board. The U9 microcontroller can also communicate, using the
Optional Ethernet Kit, with a daughter card that allows the user to view remote control
parameters via a web Ethernet interface.
The ±12 VDC and +5 VDC from the (A9) power supply and the 39-42 VDC from the
(A10) power supply are routed to the other boards in the drawer through this board.
The +40 VDC power supply operates all the time, and connects the 39-42 VDC to the
board at J19-1, 2, & 3 with 5 common. Q13 on the control board is turned on and off to
gate the 39-42 VDC, which connects through J19-6, 7 & 8, to the RF output stages.
The ±12 VDC and +5 VDC input voltages to this board is connected through J21 and
filtered before being connected to the rest of the board. +12 VDC connects through
J21-1, +5VDC through J21-2 & 3, and -12 VDC through J21-6. Common connections for
the input voltages are connected to J21-4 & 5. The ±12 VDC and +5 VDC are used on
this board and also routed to the other boards in the drawer through this board. The
+3.3 VDC for the microcontroller and programmable logic array, mounted on the board,
is provided by the voltage regulator IC U6 from the filtered +5 VDC input. The output of
U6 can be adjusted to +3.3 VDC using R120.
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9.2 VHF Amplifier Boards
9.2.1 Amplifier Design
The amplifier is designed as a slide-in unit. The mechanical support structure is formed
by a finned heat sink on which the individual assemblies are mounted. The amplifier
assemblies are listed in Table 3-1.
All RF connectors are located on the front panel, while the control and power connectors
are mounted at the rear. The control board is mounted behind the front panel. Two LEDs
on the control board (visible through the front panel) signal the operating status of the
amplifier, Module OK and Enable LEDs
Position Assembly Remarks
A14 Control Board For control, monitoring, and test signal capture
A1 Phase/Gain Board Phase and gain adjustment of amplifier tray
A2 Low Level VHF Pre-
driver Board Pre-driver
A3 VHF Single Amplifier
Board IPA, Driver, to the splitter
A4 Splitter (1:4) Distributes the RF input power to the final
amplifier boards A5 to A8
A17 FET Switch Board
Takes the two +48VDC inputs and switches them
to the 4 way combiner that distributes them to
the driver pallets and the amplifier pallets
A5 to A8 VHF Dual Stage
Amplifier Boards Four final amplifier boards
A9 to
A12
2-Way Hybrid
Combiners
Combines the outputs from each Dual Stage Final
Amplifier Board
A13 Combiner (4:1) Sums the output powers of the two way hybrid
combiners
Table 41: Assemblies in the VHF Amplifier
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Front Panel
Splitter (1 : 4)
A 4
J 1
(RF Input)
Combiner (4 : 1)
A 13 J 2
(RF Output)
J 3 (RF
Test Point)
VHF Final Amp Pallets
A5 – A8
Control- and Indication Lines
View from the Front
(without Front Panel)
Control Board A 14
Phase Shifter Board
A
10
+
-
VHF Drv
A3
VHF Predrv
A2
J3 J4 J5 J6
I/P
#1
I/P
#2
I/P
#3
I/P
#4
Switch Board
A17
Combiners (2 : 1)
A 9
–
A 12
Regulator
Board
A
8
Figure 68: Location of the Assemblies in the VHF Amplifier
The amplifier is a four-stage design with variable phase shifter board, low level pre-
driver, VHF single amp driver and final amplifier stages operating in class AB. The RF
input signal is fed to the amplifier through connector J1 on the front panel. The signal is
phase corrected on A1 the phase shifter board, pre-amplified by the low level board A2
(pre-driver), amplified by the single stage module A3 (driver) before it is passed through
the splitter A4 and distributed to the four VHF dual final stage modules A5 to A8. The
outputs of each of the final stage modules are combined in 2-way combiners. The
outputs of the 2-way combiners are summed in the combiner A13 and the resultant
signal is passed to RF output connector J2.
The pre-driver and combiner incorporate directional couplers output voltages
proportional to the forward powers at the input and output of the amplifier. They also
couple out voltages proportional to the forward power behind the driver as well as a
voltage proportional to the reflected power at the output of the amplifier. These test
voltages are passed to the control board for internal evaluation and partly for
interrogation by the control unit. In addition, the reflected power at the amplifier output
is monitored in the control board and, if the threshold value is exceeded, the operating
voltages for the pre-driver and driver are switched off and a fault indication is stored. A
directional coupler in the combiner couples out a signal proportional to the forward
power at the output of the amplifier. This signal is passed to connector J3 on the front
panel to provide the RF test signal.
Test voltages derived from the forward power of the amplifier are generated in the
control board to provide automatic level control (ALC) in the exciter or modulator stage
of the transmitter. The ALC is a function of the rms value of the output power
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Figure 69: Block Diagram of the VHF Amplifier
No new alignment work is necessary. The frequency-dependent operating parameters
for the complete frequency range are stored in the controller and are automatically
enabled by the frequency setting of the exciter. The RS 232 port is used for the factory
alignment of operating parameters, e.g., calibration of RF and drain current test values.
The operating voltage Uop of +48 volts is distributed to the final amplifier modules by a
current bus underneath the combiner. In addition to Uop for the modules, the amplifier
requires auxiliary voltages of ±12 volts for the control board. The operating voltage and
current consumption of the individual modules are captured in the combiner board and
passed to the control board where they are available for interrogation by the control
unit. Furthermore, threshold values are monitored in the control board and, if a fault
condition arises, the operating voltage for pre-driver A2 and driver A3 is disconnected by
the action of field effect transistor mounted on the A18 regulator board. The fault
indication is stored and passed to the control unit.
The measured values of the temperature sensors A15, mounted on driver front, and
A16, mounted on final rear, are passed to the control board where they are monitored
and available for interrogation by the control unit.
The control board possesses a number of LEDs that indicate the status of the amplifier.
Two of these LEDs are visible through the front panel. The green Module OK LED
indicates fault-free operation. The Green Enable LED indicates that the enable is applied
to that assembly. It will not be lit if the Enable is removed. It will be lit Amber if the
Enable is applied but tne amplifier is not operating.
A fault condition is indicated by a Red Module OK, either continuously illuminated or
flashing Red. The flashing Red LED interprets as follows:
1 Blink indicates Amplifier Current Fault.
2 Blinks indicate Temperature Fault.
3 Blinks indicate Power Supply Over Voltage Fault.
4 Blinks indicate Power Supply Under Voltage Fault.
5 Blinks indicate Reflected Power Fault.
6 Blinks indicate +12V or –12V Power Supply Fault.
7 Blinks indicate AGC Overdrive.
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9.2.2 Capture of the Test Values in the VHF Amplifier
The following test values are passed the transmitter control unit:
• Forward power at the amplifier output – rms output power7
• Reflected power at the transmitter output – peak level
• Operating voltage
• Current consumption of the modules
• Temperatures
The following test values are used only for internal purposes on the control board:
• Forward power behind drive module A3 (not displayed in the control unit)
The following test points are available for external equipment:
• RF test connector J3 on the front panel
Output power behind drive module A3 (this test point is exclusively intended for factory
measurements
Figure 70: Typical Low Band VHF Amplifier Assembly Interconnect
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9.2.3 Functional Description of the Boards in the VHF Amplifier
9.2.3.1 (A1) Phase/Gain Board (1307780; Appendix B)
The Phase Gain Board provides an adjustment of the phase using R21 and the gain
using R10 of the RF signal that passes through it so that the output of each amplifier
assembly has the same insertion phase and can be combined to produce the maximum
output power from the array.
The RF signal enters the board at J1, is attenuated by 1 dB pi-network consisting of R5,
R7 and R8, and is split by Z2. One output of the splitter is sent to an RF detector CR5,
which detects the peak level of the input signal. The other output of the splitter is sent
to a pin attenuator consisting of Z1, CR2, CR3 and associated components. The
attenuator is a constant impedance pin attenuator, controlled by the Gain Adjust Pot
R10, which has a range of approximately 10 dB. The output of the pin attenuator is sent
to a phase shifter circuit consisting of Z3, CR4 and CR6, which adjusts the phase shift
through the tray. The Phase Adjust Pot R21 sets the amount of phase shift. The output
of the phase shifter is sent to a Pin Switch consisting of CR1 and associated components.
Under normal operation, this switch is on, passing the RF signal through to the output
amplifier U2. In a fault condition, the bias to CR1 goes away, providing at least 20 dB
more attenuation through the board.
The board is supplied with +12VDC at J5-5. The +12VDC is filtered and isolated by C15,
C16 and L5 before it is connected to the rest of the board. The filtered +12 VDC is also
connected to the regulator IC U3 that produces +9 VDC output which is used as the
reference voltage for the gain adjust circuitry consisting of U1A, R10 and associated
components.
9.2.3.2 (A2) VHF Pre-Driver Board (1307278; Appendix B)
This board consists of a single stage push-pull RF amplifier. The amplifier has
approximately 18 dB of gain, and is biased at an idle current of 0.5A. The input signal
at J3 is sent to a 1:1 balun, T4, which converts it from an unbalanced, to a balanced
signal. The signal is then sent to a 4:1 impedance transformer, t3 and T5, which
matches the signal to the low input impedance of the transistor. On the output side of
the transistor, the signal is applied to another balun, T2, which converts the signal back
to an unbalanced signal that is connected to J4 the output Jack of the board.
+48 VDC connects to the board at J1 and is fed to U1 a +28 VDC Voltage Regulator.
The +28 VDC provides the voltages needed to operate the transistor on board.
9.2.3.3 (A3) VHF Driver Board (1305101; Appendix B
This board consists of a signal stage push pull MOSFET RF amplifier. The amplifier is
capable of putting out up to 300W Peak Envelope power, though it typically operates as
a driver at power levels much lower. The amplifier has about 17 dB gain and is biased
at an idle current of 1A.
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The input RF signal at J2 is applied to a balun, then to a 9:1 Impedance transformer to
match the 50 Ohm input signal to the balanced low impedance input of the transistor.
The output of the amplifier is applied to a 4:1 transformer, which provides the
functionality of both transformer and balun. The bias circuit is temperature
compensated by CR3 so that the bias remains relatively constant over temperature.
+46 VDC connects to the board at J3 and is used as the drain voltage for Q1. The +46
VDC is also connected through three 5.1 V Zener diodes which drops the voltage to 30
VDC, that is connected to the regulator IC U1. U1 provides approximately 15 VDC for
the source bias
voltage to Q1.
9.2.3.4 (A4) 1:4 Splitter (1304714)
The (A4) 4-way splitter distributes the output signal of the VHF single amplifier board
(A3), typically +44.5 dBm, to the four, parallel connected, VHF Dual Stage Amplifier
Boards A5 to A8.
The splitter circuits are in the form of IC circuits, U1, U2 and U3. The splitter networks
do not incorporate tuning elements. The networks provide for an equal splitting, over
the 54-88 MHz frequency range, of the input power to the four output ports. The input
signal is first split by U2 in a ratio of 1:2. After this, both partial powers are split in a
second stage, U1 and U3, in the ratio of 1:2 again. Each output is typically +38.3 dBm
pk sync visual.
9.2.3.5 (A5-A8) VHF Dual Stage Amplifier Board (1304514; Appendix B)
The (A5, A6, A7 & A8) VHF Dual Stage Amplifier Boards (1304514) provide
approximately 17.5 dB of gain through each of the boards The RF input at a level of
approximately +40.3 dBm pk sync visual connects to J3 on the board. The input is
applied to U1 a hybrid splitter that produces two outputs, one at 0° and one at -90°. Each
output connects to identical circuits. The -90° signal is applied to T1 a 9:1 transformer
assembly that produces two 180° out of phase outputs. The two outputs connect to Q1 a
dual FET, configured in a push pull arrangement, with approximately 16 dB of gain. The
amplified outputs of the IC connect to T2 a Balun assembly that combines the two 180°
out of phase signals into a single output, +54.3 dBm, which connects to J1 one of the RF
output jacks of the board. The 0° signal is applied to T3 a 9:1 transformer assembly that
produces two 180° out of phase outputs. The two outputs connect to Q2 a dual FET,
configured in a push pull arrangement, with approximately 16 dB of gain. The amplified
outputs of the IC connect to T4 a Balun assembly that combines the two 180° out of
phase signals into a single output, +57.5 dBm, which connects to J5, the other RF output
jack of the board.
The +48 VDC, from the 4-way combiner, connects to J9 on the board. The voltage is
applied through the resistors R2 and R18 and the transformers T2 and T4 to each of the
halves of Q1 and Q2.
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9.2.3.6 2:1 Combiner
There is one 2-way quadrature hybrid combiner (A9 – A12) that combines the two
outputs from each of the VHF dual stage amplifier boards. With typical +54.3 dBm
inputs to the combiner a +57.2 dBm pk of sync output is expected.
9.2.3.7 (A13) 4:1 Combiner (1304767)
The (A13) 4-way combiner (1304767) is designed to perform the following functions:
• Summing the output signals of the four 2-way combiners A9 to A12
• Supplying a forward and reflected power sample of the output of the amplifier
• Distributing the operating voltage to all the amplifier boards and to the amplifier
control board
• Switching off the low level pre-driver A2 and VHF single amplifier driver A3 after
a command from the amplifier control board to shutdown.
• Monitoring the operating currents for the individual amplifier boards.
• Monitoring the driver forward power level.
• Monitoring the temperatures sensed by sensors A15 on driver front and A16 on
final rear.
Signal Path
The output signals from the 2 –way hybrid combiners A9 to A12 are fed to the combiner
through RF input #1 (J14 Port), RF input #2 (J12 Port), RF input #3 (J10 Port), and RF
input #4 (J8 Port). The combiner circuit is in the form of microstrips mounted on a
Teflon board. The actual combiner network functions over the 54-88 MHz frequency
range without the aid of tuning elements. The input signals are first summed in a ratio
of 4:1. Thereafter, the resultant powers are summed in a second stage in the ratio of
2:1. The load (balancing) resistor of both 2:1 stages are formed by the series
connection of two 50-Ω cables terminated with power resistors. The outer conductors of
these cables represent short circuit lines that are part of the necessary impedance
transformation of the paralleling network from the combiner inputs to the respective
summation point.
Directional couplers in the output circuit couple out RF voltages proportional to the
forward and reflected powers of the output power of the combiner. These test voltages
are demodulated and passed to the amplifier control board at J15-2 for reflected power
and J15-14 for forward power. Another coupler provides an RF voltage proportional to
the forward power at J17 that is passed to the RF test connector J3 located on the front
panel of the amplifier. A sample of the A3 VHF single amplifier driver RF forward power
connects to the combiner at J6 and is supplied as a sample to the amplifier control
board.
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Operating Voltage for the Amplifier Boards
The operating voltage of +48 volts is distributed to each of the VHF dual stage amplifier
boards, J2 to A8, J3 to A7, J4 to A6, & J5 to A5, and to the A3 VHF single driver board
and the A18 regulator board through J1 on the combiner. The A17 FET switch board will
remove the +48 VDC from the amplifier boards during hot replacement of the VHF
Amplifier Assembly.
The drain currents of the power transistors on the VHF dual stage amplifier boards are
captured by .01 precision resistors connected to their supply lines. The voltage drop
across these resistors is passed to the amplifier control board through 43.2k bleeder
resistors. In addition, the operating voltage is also passed to the control board for
monitoring purposes.
Shutdown
Critical operating parameters, including current high or low and temperature, of the
amplifiers are monitored on the amplifier control board. If threshold values are
exceeded, the control board switches off the operating voltage for the pre-driver and
driver through the action of the A17 FET switch board.
Temperature Measurement
The temperature in the amplifier is measured at the driver-front and the final-rear by
means of temperature sensors A15 and A16.
9.2.3.8 (A14) Amplifier Module Control Board (1306830; Appendix B)
All protective, switching, display, and monitoring functions required for the operation of
the VHF amplifier assembly are realized by the control board. The control board is
mounted in a RF enclosure behind the front panel of the amplifier and performs the
following tasks:
• Capture and processing of test values
• Fault protection for the amplifier modules
• Generating the actual value for transmitter ALC
• Communication with the transmitter control unit
The circuits in the control board do not contain elements that can be adjusted. All of the
required settings are software implemented in the factory through an RS 232 port and
must not be altered.
Schematic Page 1
U2 is an 8 bit RISC microcontroller that is in circuit programmed or programmed using
the serial programming port J2 on the board. It is an in-circuit ATMEL microcontroller is
operated at 3.6864 MHz. Programming of the device is performed through J2. PF4 and
PF5 are analog inputs for ICs locate on locate on page 4 of this schematic.
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The desired analog channels of U33 and U34 are selected by the setting of PA0, PA1 &
PA2. PA 3 of U2 is a processor operating LED that can be flashed to show continued
operation. PF0 and PF1 are used to monitor the +12VDC and -12VDC supplies to the
board. PF3 and other select microcontroller pins are connected to a via for future
access.
U6 is a standard serial to RS-485 driver IC. Resistor R25 sets U6 to transmit mode
when the micro is held in reset or PE2 is configured as an input. R30 and CR7 hold the
data output of U6 low whenever the programming pot has U2 in reset. The result should
be that the
RS-485 does not transmit data during micro controller programming and U6 is held in
the transmit mode therefore received RS-485 signals should not be able to change the
state of PE0 and thus corrupt the code being sent during programming fo the micro.
U4 is a watchdog IC, which holds the microcontroller in reset, if the supply voltage is
less the 4.21 VDC; (1.25 VDC < Pin 4 (IN) < Pin 2 (Vcc). The watchdog momentarily
resets the microcontroller, if Pin 6 (ST) is not clocked every second.
U3 is a RS-232 serial port on UART 1 of the microcontroller. J1 is used to provide front
panel RS-232 access, without hardware handshaking. A standard NULL modem cable is
needed to connect to a PC. For test and debug all data into and out of the RS-485
interface of UART 1 can be transmitted out through R149 to J1-9. This is not usually
used unless hardware handshaking is implemented.
The IC U1 is used to determine where the amplifier control board is located. Three of
the four inputs require an external Pull-Down to ground to set the logic state, but
Module ID 4 requires an external Pull-Up. Diodes such as CR1 prevent un-powered
modules from pulling down the module ID lines of other installed modules. The external
pull down to ground connections are made in the amplifier cabinet wiring harness.
U5 below U1 is used to control the board’s status LEDs and other circuits that are
allowed to change state during a microcontroller reset. A FET is turned on to shunt
current away from the LED to turn it off. U7 below U5 is used to enable different
features within the software. Since the actual use of this part is to be determined, the
circuit components associated with this IC is not installed at this time
The flashing Red Module OK LED interprets as follows:
1 Blink indicates Amplifier Current Fault.
2 Blinks indicate Temperature Fault.
3 Blinks indicate Power Supply Over Voltage Fault.
4 Blinks indicate Power Supply Under Voltage Fault.
5 Blinks indicate Reflected Power Fault.
6 Blinks indicate +12V or –12V Power Supply Fault.
7 Blinks indicate AGC overdrive.
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD Board Descriptions
ATSC Transmitter/Regenerative Translator
Instruction Manual, Rev. 0 75
Schematic Page 2
U8, U9, U11 and U12 are located in the upper center section on Page 2 of the schematic.
When the high voltage power supply is enabled, U9 is used to generate a regulated
voltage that is about 5 VDC less that the +48VDC supply. U12 is used to generate a
regulated voltage that is about 10 volts less than the high voltage power supply. U11 is
used to generate a voltage that is about 10 VDC greater than the high voltage power
supply. U8 is used to produce a regulated voltage that is 5 volts greater than the high
voltage power supply. The regulated voltages that are 5 volts above and below the high
voltage power supply are used to power the unity gain op-amp circuits located on Page
3 of the schematic.
The output of U8 is also used to drive the gate of two external Power FETs. These FETs
are used to control the high voltage power supply current to the amplifier pallets. Since
than high voltage power supply can be +48VDC and the IC is rated for a maximum drain
to source voltage of 60 volts, Q8 is used with Q9 to make a circuit that controls the high
voltage power supply control voltage of the two external power FETs. Q11 and Q12
allow the hardware to automatically disable the external power FETs on detection of a
critical fault. Q13 is used by the software to disable the external power FETs.
U10A is used to detect high current in Amplifier #1. At 0.886 VDC the current to
Amplifier #1 should be approximately 5.12 Amps. U10B is used to detect a high current
condition in amplifier stages 2 through 7. With a 2.8 VDC reference, high current shut
down should be approximately 18 Amps.
U13A is used to detect high power supply voltage. U13B is used to indicate that the
power supply voltage is too low. Q6 and Q9 are used to select the fault thresholds of
U13.
CR27 uses the output signal of U32A to shut-down on high reflected power. U14
determines if the power amplifier heat sink temperature is too high.
Schematic Page 3
The current monitoring circuits are shown on page 3. A .01 resistor is used on the
combiner board for monitoring the current through several sections of the amplifier. The
voltage developed across this resistor is provided to the control board through current
limiting resistors. The control board has current limiting resistors and filtering capacitors
on the input circuits. These resistive components would not work well with the internal
structure of the ICs precision high side current sense amplifiers. A unity gain low input
offset op-amp is used in both the high and low sense lines. The 43.2 k resistor from
pin 5 to ground sets the gain of the current sense amplifiers to about 17.28. This value
is not set with much accuracy since the manufacturer internally matches the resistors to
this part but the actual resistance value is not closely defined. A diode clamps the input
level to not be less than the supply voltage of the op-amps negative rail.
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD Board Descriptions
ATSC Transmitter/Regenerative Translator
Instruction Manual, Rev. 0 76
Schematic Page 4
U32A is used to detect high reflected power.
U29 is rated for 0.14 Amps of power using its 92 C/W rating, If Ta = 60˚C max and TJ
= 125˚C max. 0.26 Amps can be obtained from U29 if the mounting pad is 0.5 square
inches. The controller will not need this much current.
U30 and U321 are low drop-out voltage regulators with a tolerance greater than or equal
to 1%. 100mA is available from each device but the controller will not need this much
current.
The RF power circuits are calibrated on the combiner board. The DC output voltage of
these circuits is passed to the control board over the ribbon cable. The module forward
power is placed on the non-inverting input of U32B pin5. If this module has the highest
detected forward power in a multi-amplifier system, it will have the highest forward
power signal. This signal level into U32B pin 5 will be used to set the AGC output
voltage of the system. If another amplifier has a higher forward power, the level into
U32B pin 6 will be higher than pin 5 and his amplifiers output signal will not be used to
set the AGC voltage level.
9.3 (Optional) ASI to S310 Converter Module
NOTE: The ASI to S310 Converter Modules is only used with STL ASI feed inputs.
The ASI to SMPTE 310M converter takes the STL ASI feed input, if present in your system,
and converts it to a SMPTE 310M output which connects to the input to the Axcera
system. The converter contains an ASI Motherboard (1311179), an ASI to 310
Conversion Board, Non-SFN (1311219) or ASI to 310 Conversion Board, SFN (1309764),
and a 120 VAC to +12 VDC converter module.
9.3.1 ASI Motherboard (1311179)
The ASI motherboard takes the +12 VDC, from the 120 VAC to 12 VDC converter
module, and converts it to +5 VDC and +3.3 VDC which are used by the ASI to S310
conversion board.
U1 is a regulator IC that supplies an output of +5 VDC at J2-7 that connects to the ASI
to 310 converter board. U2 is a regulator IC that supplies an output of +3.3 VDC at J2-
11 that connects to the ASI to 310 converter board. Also +12 VDC is wired to J2-3 that
connects to the ASI to 310 converter board.
The ASI motherboard is the mounting platform for the four LEDs that are displayed on
the front of the module. The LEDs will be Green if everything is OK or Red if the
indicated function is malfunctioning. The LEDs are Power, which indicates +12 VDC is
connected to the converter, FIFO ERROR, which indicates an overflow or underflow
condition in the input buffer, S310 Lock, which indicates the converted S310 signal is in
a locked condition, and ASI Lock, which indicates the recovered ASI signal is in a locked
condition.
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD Board Descriptions
ATSC Transmitter/Regenerative Translator
Instruction Manual, Rev. 0 77
9.3.2 ASI to 310 Conversion Board, Non-SFN (1311219)
The ASI signal is input to the ASI to S310 conversion board via J1. U2 de-serializes the
ASI input signal into a parallel byte stream. The parallel byte stream is clocked into U6
which buffers and converts it to a valid S310 bi-phase encoded signal. Null packets are
added or dropped during this process to obtain the valid 19.393 Mb/s output. U6 is also
responsible for re-stamping the PCR clock. The final S310 output of the board is at J5.
9.3.3 ASI to 310 Conversion Board, SFN (1309764)
The ASI signal is input to the ASI to S310 conversion board via J1. U2 de-serializes the
ASI input signal into a parallel byte stream. The parallel byte stream is clocked into U6
which buffers and converts it to a valid S310 bi-phase encoded signal. For SFN
operation the ASI payload must be 19.392568 Mb/s +/- 2 ppm. A 38.785317 MHz
VCXO locks to the exact S310 bit-rate using a Digital PLL. This method ensures the
extracted S310 stream is frequency locked without modifying its content i.e. add/drop
null packets, PCR restamp, etc. The final S310 output of the board is at J5.
9.4 (Optional) K-Tech Receiver
NOTE: If your system contains an (Optional) K-Tech Receiver, information on the
receiver is contained in the separate manufacturers supplied instruction manual.
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD System Repair and
ATSC Transmitter/Regenerative Translator Set-Up Procedures
Instruction Manual, Rev. 0 78
Chapter 10: System Repair and Set-Up Procedures
This system was aligned at the factory and should not require additional adjustments to
achieve normal operation.
This Innovator CX Series system is of a drawer design with multiple boards inside the
drawer. If a board fails, that board needs to be changed out with a replacement board.
The failed board can then be sent back to Axcera for repair.
NOTE: Contact UBS-Axcera Customer Service Department at 1-724-873-8100 or fax to 1-
724-873-8105, before sending in any board or module.
10.1 Troubleshooting and Repair of the VHF Amplifier
10.1.1 Safety Information
Work on the amplifier must only be carried out by qualified personnel according to good
electrical engineering practice, taking into account all relevant safety precautions.
Furthermore, the following should be noted:
• Before working on an amplifier, e.g., removing cables, removing the front panel etc.,
ensure that the amplifier is disconnected from the operating voltages. Carry out all
work with extreme caution.
10.1.2 Troubleshooting
10.1.2.1 Front Panel LEDs
A visual indication of the operating status of the VHF amplifiers is signaled by front panel
LEDs.
Fault-free operation is signaled by the lit Green Module OK LED, located nearest the
handle.
A fault condition is indicated by a Module OK, either continuously illuminated Red or
flashing Red.
The flashing Red LED interprets as follows:
1 Blink indicates Amplifier Current Fault.
2 Blinks indicate Temperature Fault.
3 Blinks indicate Power Supply Over Voltage Fault.
4 Blinks indicate Power Supply Under Voltage Fault.
5 Blinks indicate Reflected Power Fault.
6 Blinks indicate +12V or –12V Power Supply Fault.
7 Blinks indicate AGC overdrive.
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD System Repair and
ATSC Transmitter/Regenerative Translator Set-Up Procedures
Instruction Manual, Rev. 0 79
10.1.2.1 Polling Fault Indications
Detected fault conditions are passed to the control unit. The fault indications are entered
in a list and can be viewed at any time during transmitter operation.
The system control unit is used for polling stored fault indications and reading actual
operating parameters.
10.2 Exchanging Amplifiers
An exchange of amplifiers during transmitter operation is possible. The paralleling
networks in the amplifier cabinet are designed so that if an amplifier fails or an amplifier
is removed, operation continues at reduced power without degradation of performance
data.
10.2.1 Exchange of a Module
Caution: The load (balancing) resistors in the modules contain Beryllium Oxide.
1. Remove the amplifier from the cabinet as described in the Chapter 2 of this
volume.
2. Undo the side panel of the amplifier.
3. Unsolder the connections for the operating voltage as well as the RF input and
output connections of the defective module.
NOTE: The temperature sensors A15 or A16 may need to be unscrewed to remove
the module.
4. After undoing the screws, the module can be lifted from the heat sink.
5. Remove the old heat-transfer paste from the heat sink.
NOTE: In order to ensure proper heat conduction, the contact surface of the heat
sink must be clean and free of foreign particles.
10.2.2 Mounting a New Module
1. Apply a thin film of heat-transfer paste to the contact surface.
2. Fix the module into position with the mounting screws. At first, only tighten the
screws by hand.
3. Next, tighten the screws, in repeated steps, to a torque of 0.8 Nm.
Caution: A torque of 1.2 Nm must not be exceeded.
(1.2 NM ≈ 10 in/lb)
(0.8 Nm ≈ 7 in/lb)
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD System Repair and
ATSC Transmitter/Regenerative Translator Set-Up Procedures
Instruction Manual, Rev. 0 80
10.2.3 Final Steps
Replace the cover on the amplifier, insert the module into the transmitter cabinet, and
make the RF input and output connections.
NOTE: Alignment work on the amplifier is not required. If more than two modules of an
amplifier have been replaced, the phase response of the amplifier should be checked.
The exchange of a module should be reported to Axcera with information on the cause of
the fault, module location, identification number of the amplifier, and the type of
transmitter.
10.3 Adjusting the Output Power of an Amplifiers
The amplification of the individual amplifiers has been factory set. The amplification can,
however, be adjusted on-site with the aid of a potentiometer accessible on A1 the phase
shifter module. This measure may be required to ensure that all amplifiers in the
transmitter deliver the same output power. Readjustment may be necessary under the
following conditions:
• When the output power of the amplifier is too high
• After repairing an amplifier
• After a change in operating frequency
• After an exchange of an amplifier (replacement amplifiers delivered by Axcera are
factory set to maximum amplification)
The maximum adjustment range of the potentiometer is 20 dB. The standard setting is 6
dBm out.
NOTE: Alignment of the amplification to a less than 0.5 dB difference between amplifiers
is not necessary.
10.3.1 Adjustment Procedure
Before beginning this procedure, the ALC for the transmitter power must be switched off
at the exciter or modulation stage.
Turning the potentiometer clockwise increases the amplification, Turning in the opposite
direction decreases the amplification. The pot must be turned very slowly, as the pot is
only ¾ turn max to min.
During the adjustment procedure, the output power of the amplifier can be read in the
LCD of the control unit (refer to Volume 1, Control Cabinet, of this manual for further
information).
After the output powers of the individual amplifiers have been aligned, the ALC must be
switched on again and the nominal output power of the transmitter must be set.
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD System Repair and
ATSC Transmitter/Regenerative Translator Set-Up Procedures
Instruction Manual, Rev. 0 81
10.4 Amplifier Connections
Connector Assignment Type
J1 RF Input Female N-type
J2 RF Output
Female HF
7/16
J3 RF Test Point Female N-type
RS 232 C reserved for factory
alignment only!
Table 42: RF Connectors on the VHF Amplifier Front Panel
Pin Assignment
J5 +48 V
J6 Ground
Table 43: Operating Voltage Connection (Rear Panel)
APPENDIX A:
Innovator,
Innovator CLV1TD/CLV1RD – CU4TD/CU4RD,
Transmitter or Regenerative Translator
System and Drawers Drawings and Parts Lists
Innovator CLV1TD/CLV1RD – CLV4TD/CLV4RD Appendix A: System &
ATSC Transmitter/Regenerative Translator Drawers Drawings and Parts List
Instruction Manual, Rev. 0 A-1
Innovator CLV2RD Regenerative Translator System with Adaptive Modulator
Drawing List
CLV2RD Regenerative System w/ Adaptive Modulator
(Consists of one CLV0Rx-1 Drawer driving two VHF Low Band Amplifier Drawers)
CLV2RD, Racking Plan and Interconnect ..............................................1316816
CLV2RD, Parts List...........................................................................CB006089
CLV0Rx-1 Drawer w/Adaptive Modulator (Used as a driver)
CLV0Rx-1 Drawer w/Adaptive Modulator Interconnect ............................1316704
CLV0Rx-1 Drawer w/Adaptive Modulator Block Diagram..........................1316705
CLV0Rx-1 Drawer w/Adaptive Modulator Parts List ...............................CB006070
VHF Low Band Amplifier Drawer (Two used with the CLV2RD system)
VHF Low Band Amplifier Drawer Interconnect ........................................1308211
VHF Low Band Amplifier Drawer Assembly Drawing................................1308727
VHF Low Band Amplifier Drawer Parts List.............................................1308727