Anywave ATSC 1.5KW User manual

ANYWAVE
ATSC 1.5KW DTV Transmitter
User Manual
Version 1.4
September 12, 2014

ATSC 1.5KW DTV TX User Manual
ACT-1500-USR-DOC-V1.4 09/12/2014 Page 2 of 76
Copyright Notice
Copyright © Anywave Communication Technologies, Inc. 2014, All rights reserved.
No part of this publication may be reproduced, translated, transcribed, stored in a
retrieval system, or transmitted into any form or by any means, without the express
written permission of Anywave Communication Technologies, Inc.
FCC Compliance
This equipment complies with relevant portions of Parts 2, 73, & 74 of the FCC rules
governing LPTV operation.
Disclaimer
Information provided by Anywave Communication Technologies is believed to be
accurate and complete; however, no liability can be assumed for its use.
The manufacturer makes no representations or warranties, either expressed or implied,
by or with respect to anything in this manual, and shall not be liable for any implied
warranties of fitness for a particular purpose or for any indirect, special, or
consequential damages. Information in this document is subject to change without
notice and does not represent a commitment on the part of the manufacturer.
USE OF THIS PRODUCT IN A MANNER OTHER THAN DESCRIBED IN THIS
MANUAL MAY RESULT IN DAMAGE TO THE EQUIPMENT AND/OR
PERSONAL INJURY.
PLEASE READ THIS MANUAL IN ITS ENTIRETY BEFORE ATTEMPTING TO
OPERATE THE EQUIPMENT. CONTACT ANYWAVE WITH ANY QUESTIONS
OR CONCERNS YOU MAY HAVE.
Anywave Communication Technologies Inc.
300 Knightsbridge Parkway, Suite 150, Lincolnshire, IL 60069
Tel: [phone]
Fax: [phone]
http://www.anywavecom.com/en/

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Unpacking
Carefully unpack the equipment and perform a visual inspection to determine if any
apparent damage has occurred during shipment. Please notify the delivery carrier and
Anywave immediately if shipment damage has occurred. Retain all original shipping
materials.
Please locate and reference the Packing Check List to verify you have received all
components of your system. Retain the Packing Check List for future reference.
Also, please identify and remove all packing materials and supports (foam pads, etc.)
prior to initial turn on of the equipment.
Returns and Exchanges
Written approval and a Return Authorization Number (RAN) are required from
Anywave for all equipment returns. Please direct all return inquiries to the Anywave
Service Department at [e-mail], providing the Sales Order
number and Serial Number(s) of the equipment. Complete details regarding the nature
and circumstances of your return must be included in your RAN request. Proper
handling and return shipping instructions will be provided with an approved RAN
number.
Technical Support
Technical support and troubleshooting assistance for Anywave Transmitters is
available through theAnywave Service Department during normal business hours (8:00
AM - 5:00 PM CST) at [phone].Email questions to
[email protected].
Note: For all service and support requests, you will need to provide the Serial Number
of the equipment with your Sales Order number. For future reference, please record that
information here:________________________________________

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WARNING
THE VOLTAGES, CURRENTS, AND RF ENERGY IN THIS EQUIPMENT
ARE DANGEROUS. PERSONNEL MUST AT ALL TIMES OBSERVE ALL
SAFETY WARNINGS, INSTRUCTIONS, AND REGULATIONS.
IN THE CASE OF EMERGENCY, ENSURE THAT ALL POWER HAS BEEN
DISCONNECTED.
ALWAYS DISCONNECT POWER BEFORE REMOVING COVERS,
ENCLOSURES, OR SHIELDS. DO NOT PERFROM SERVICE ON THE
EQUIPMENT WHEN ALONE OR FATIGUED. KNOW YOUR EQUIPMENT
AND DO NOT TAKE RISKS.
This manual is provided as a general guide for trained and qualified personnel well
aware of the dangers inherent in handling potentially hazardous electrical transmission
equipment.
The installation, operation, maintenance and service of this equipment involves risks
both to personnel and equipment, and must ONLY be performed by qualified personnel
exercising due care. Anywave Communication Technologies, Inc. shall not be
responsible for injury or damage resulting from improper handling or from the use of
improperly trained or inexperienced personnel performing such tasks.
All local building and electrical codes as well as fire protection standards must be
observed in the installation and operation of the equipment.

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Contents
1 Introduction............................................................................................7
2 TX System Overview .............................................................................8
3 TX Specifications .................................................................................10
4 Control Unit..........................................................................................11
5 Digital Exciter ......................................................................................14
6 PowerAmplifier –600W.....................................................................16
7 TX System Interconnect Diagram......................................................19
8 Theory of Operation............................................................................20
9 Quick Start Guide................................................................................21
10 RF System Connections.....................................................................22
11 AC Mains Connections ......................................................................24
12 Operational Basics.............................................................................27
12.1 TX ON/OFF................................................................................................................27
12.2 RAISE/LOWER POWER...........................................................................................28
12.3 RUNNING CORRECTIONS......................................................................................29
12.4 CALIBRATE EXCITER FWD POWER METER......................................................34
12.5 CALIBRATE TX SYSTEM POWER METERS........................................................35
13 Local (Touch Screen) User Interface................................................44
13.1 HOME SCREEN.........................................................................................................44
13.2A/B EXCITER ICON SCREEN .................................................................................45
13.3AMPLIFIER ICON SCREEN.....................................................................................49
13.4 CONFIG SCREEN .....................................................................................................52

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13.5 LOG SCREEN............................................................................................................61
13.6 CONTROL SCREEN..................................................................................................61
13.7 HELP SCREEN ..........................................................................................................62
13.8 EMERGENCY MODE...............................................................................................63
14 Remote (Web) User Interface...........................................................64

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1 Introduction
This User Manual contains operational instructions for theAnywave 1.5KW DTV
Transmitter. Please note that trained and qualified personnel are required to operate
install, maintain, and service this transmission equipment.

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2 TX System Overview
The Anywave ATSC 1.5KW DTV Transmitter comes in single and dual exciter
configurations. Photos of a single exciter system are shown below. The main
subsystems (as seen from the front) include the Exciter, Controller unit (with a
touchscreen LCD, and built-in preamp), three 600W power amplifiers, an AC Mains
Breaker, and a channel mask Band Pass Filter (BPF) - optional.
Controller
Exciter
PA 1
PA 2
BPF
AC Mains
Breaker
PA 3

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From the rearview of the TX cabinet, several other main components can beseen which
include a 3-way Splitter, 2-port Directional Coupler, 3-Way Combiner, Reject Loads,
and AC Distribution System.
AC Distribution
Sys Reject Loads
w/fan
3-Way Combiner
2-port Coupler
3-Way Splitter

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3 TX Specifications
RF Output
Connector: 1 5/8”, 50 Ω
Frequency: 470~860 MHz, in steps of 1 Hz
Rated Power: 1.5kW (rms)
Level Stability: < ±0.2 dB
MER: > 35 dB
Amplitude Flatness: < ±0.5 dB
Shoulder Level: < - 50 dB (after correction)
Return Loss: > 16 dB
Environment
Operation Temperature: 0 ℃~ +40 ℃
Operation Humidity: < 95 % (non-condensing)
Atmospheric Pressure: 86 kPa ~ 106 kPa
Power Supply
Voltage: 220 VAC, single phase 3-wire (60A) or
208 VAC, 3-phase 4-wire (40A)
Frequency: 50/60 Hz
Power Consumption: 6400W typical, 7600W max (@ 1900W output before bpf)
Other
Cooling System：Forced air cooling
Control Interface: Front panel, Ethernet and RS232
Size (HxWxD): 1570 mm x 600 mm x 1100 mm
Note
1. The electrical interface characteristics are measured under normal conditions. Values may
vary.
2. Operating in abnormal conditions may result in damage to the equipment. Long operating
hours in severe environments may reduce the reliability of the entire system, which may
cause permanent damage to equipment. Make sure all electrical interface characteristics
and environmental parameters are within the defined range listed above before operating
this equipment.

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4 Control Unit
The TX Control Unit consists of a pre-amp (1xBLF571 driving 2xBLF881 devices) and a
powerful control system. It receives the RF input(s) from the exciter(s), performs the pre-
amplification, and finally sends a preamplified output to the 4-way splitter which feeds the 4 PA
modules. It also receives various RF signals for detection and monitoring.
Front panel
The front panel of Control Unit is shown below.
Color touch screen
NORMAL/EMERGENCY
NORMAL: The default mode of the transmitter for normal operation.
EMERGENCY: The password for the EMERGENCY mode is “17654”. After entering
the correct password, if AGC is turned on, the transmitter reduces its output power to half
of the AGC target power. Otherwise if AGC is turned off, the transmitter reduces its output
power by 3 dB based on its current attenuation setting.
LED_NORMAL
If the green light is ON, then the transmitter is working in NORMALmode.
LED_EMEGENCY
If the yellow light is ON, then the transmitter is working in EMERGENCY mode.
LED_ALARM
If there is any alarm, the red light is ON, and the transmitter will shut down its output.
The most common alarms include: Over-drive/over-current of PA modules or Preamp,
high reflected power of PA modules or Preamp, high absorbed power, over temperature
of PA modules or Preamp, etc. Please refer to Status Bar and LOG from the touch screen
of Control Unit for details.

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Rear Panel
The rear panel of Control Unit is shown below:
RF_MON: Loop out of RF_OUT1/RF_OUT2 for monitoring
RF_IN_A/RF_IN_B
Connector: N
Impedance: 50 Ω
Note: To receive the RF_OUT signal from Exciter_A / Exciter_B
RF_OUT_1/RF_OUT_2
Connector: N
Impedance: 50 Ω
Note: Sends pre amplified RF signal to the inputs of PAmodules
PR_IN (TX Reflected Power)
Connector: BNC
Impedance: 50 Ω
Note: To receive feedback signal from Directional Coupler for Reflected Power
detection and monitoring.
PF_IN (TX Forward Power)
Connector: BNC
Impedance: 50 Ω
Note: To receive feedback signal from Directional Coupler for Forward Power detection
and monitoring.
PL_IN (TX Load Reject Power)
Connector: BNC
Impedance: 50 Ω
Note: To receive feedback signal from Directional Coupler and Load forAbsorbed
Power detection and monitoring
AUX_IN (reserved)
GPRS (reserved)
ERS485-A/ERS485-B: To be connected to REMOTE of Exciter_A/Exciter_B for internal
communication between exciters and Control Unit.
PRS485-1/PRS485-2: To be connected to RS485 of PA610-1/PA610-2 for internal
communication between PAmodules and Control Unit.
RS232: To be connected to a computer for external serial protocol communication with Control
Unit for remote control.

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LAN: 10M/100M Ethernet port for web-based remote control (ipaddress: 192.168.1.210)
AC INPUT/FUSE: 100-240 VAC
Power Switch: ON/OFF

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5 Digital Exciter
Front Panel
LCD:
40×2 LCD with power saving backlight
6 Buttons:
Left, Right, Up, Down, OK, ESC
6 LEDs:
When in Exciter mode:
LED_TS1: Green light on indicates TS1 is selected and the input TS signal is OK
LED_TS2: Green light on indicates TS2 is selected and the input TS signal is OK
LED_TSErr: Red light on indicates the selected input signal has error
When in Translator mode:
LED_ TS1: Green light on indicates the synchronization of input RF signal is OK
LED_TS2: Green light on indicates the equalization of input RF signal is OK
LED_TSErr: Red light on indicates there is synchronization error or equalization error
In both Exciter and Translator mode:
LED_ GPS: Green light on indicates GPS connected and locked
LED_ RFON: Green light on indicates system ready and RF on
LED_ SysErr: A flashing red LED indicates the presence of a system error
A solid red LED indicates the unit is in "Local (LCL)" control mode, and when
this LED is off, this indicates that the unit is in "Remote (RMT)" control mode
1 BNC connector:
RFMON: Reserved

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Rear Panel
RF_IN_A: Feedback signal, sampled after the band-pass filter (-5 to -15dBm)
RF_IN_B: Feedback signal, sampled before the band-pass filter (-5 to -15dBm)
AGC_IN: Feedback DC voltage forAGC control (0-5VDC)
RF_MON: Loop out of RF_OUT for monitoring (-25 dB below RF_OUT)
RF_OUT: Main RF signal output of exciter, to be connected to
RF_IN_A/RF_IN_B of Control Unit (nominal 0 dBm output)
DRYLOOP: Dry loop for remote control
REMOTE: To be connected to ERS485-A/ERS485-B of Control Unitfor internal
communication between exciters and Control Unit
REMOTE (RJ45-B): 10M/100M Ethernet for remote control (ipaddress: 192.168.1.143)
TSoIP (RJ45-A): Reserved
10M_IN: 10 MHz input from external GPS receiver
1PPS_IN: 1 PPS input from external GPS receiver
TS_IN_1: The first port of TS inputs, DVB-ASI only
TS_OUT_1: Loop out of [TS_IN_1] for monitoring
TS_IN_2: The second port of TS inputs, DVB-ASI only
TS_OUT_2: Loop out of [TS_IN_2] for monitoring
TUNER_IN: Received RF signal input
Note: Please refer to theACT-5X Exciter User Manual for more details.

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6 Power Amplifier –600W
This TX is fitted with three UHF-610 PA modules to produce a total 1500W of output power
after the BPF. Each module consists of two 2 pallets (a total of 4 BLF888A devices).
Front Panel
The front panel of PA UHF-610 is shown as below. The LED indicators and ports are listed below.
LED_PWR
Green light will be on when the DC voltage of internal power supply is within the
normal range (48 VDC ~ 52 VDC).
Green light will flash when the DC voltage of internal power supply is out of the normal
range (48 VDC ~ 52 VDC).
Green light will be off when the external power supply is turned off, or internal power
supply module does not work.
LED_RS485
Green light will flash once per second when the internal communication is normal.
Green light will stay constantly on or off when the internal communication is abnormal.
LED_FWD
Blue light will be on when TX power level is stable and higher than 10 W.
Blue light will flash once per second during the ramp up process and the TX power level
is higher than 10 W.
Blue light will be off when the TX power level is less than 10 W, or it’s turned off by
configuration or for protection. There are several situations which will result in auto-
protection mode, such as the input power is too high, the reflected power is too high, or
the temperature is too high. When the transmitter reboots, the default setting of TX
status is OFF.
LED_ALARM
Red light will be on if there is any alarm and TX output will be shut down

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Red light will be off if there is no alarm
Note:
1) The front fan covers can be removed to clean the air intake path. No screw driver is
needed, and no disassembly of the PA is required.
2) When a warning occurs and the PA enters auto-protection mode, the only way to clear
this state is to cycle power on the PA module once the problem(s) is resolved. Otherwise
all warning LEDs will remain on even if the problem(s) no longer exists.
Rear Panel
The rear panel of PA UHF-610 is shown below with ports described as follows.
RF_IN
Connector: N
Impedance: 50 Ω
Note: To receive RF signal from RFOUT1/RFOUT2 of Control Unit.
RF_OUT
Connector: 7/16 DIN
Impedance: 50 Ω
Note: To send out RF signal to the input of Power Combiner (attached to the cabinet). It
must always be connected to a load.
RF MON (loop out of RF_OUT)
Connector: BNC female
Impedance: 50 Ω
Note: It is OK to leave this port open without load.
RS485
Connector: DB9-M
Note: To be connected to PRS485-1/ PRS485-2 of Control Unit for internal
communication between PA and Control Unit.

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AC220V input: To be connected with Power Supply System.
Power Switch: ON/OFF
Note:
1) The back fan covers can also be removed to clean the air intake path. No screw driver is
needed, and no disassembly of the PA is required.

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7 TX System Interconnect Diagram
The diagram below shows the overall system interconnect between the various modules.

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8 Theory of Operation
The ATSC 1500W DTV transmitter is conceptually simple to understand and easy to operate.
The Transmitter can be ordered wired for either 220VAC single-phase 60Aor 208VAC 3-
phase 50AAC Mains service.An AC Mains Distribution compartment is located in the back rear
floor of the TX. This compartment is shielded for personnel safety and provides the distribution of
appropriateAC power to the various modules inside the TX cabinet.
A standard ATSC ASI input stream is provided to one of the BNC connectors located on the
rear panel of the Exciter. The Exciter (different platforms) supports options for DVB-ASI and
SMPTE310M stream formats as well as an RF off-air input via a built-in tuner and TSoIP support
via an RJ-45 input. The Exciter performs the appropriate FEC and Signal Processing to modulate a
standard 19.39 MbpsATSC TS to produce an RF output at the desired channel frequency.
SupportedATSC modulation standards include A/53 (Legacy), A/153 (MH), andA110:20011
(SFN).
The TX supports both Single and Dual Drive (DD) Exciter configurations, and manages the
automatic and manual switchover between Exciters in a DD configuration. The modulated RF
output signal from the Exciter(s) is (are) fed into the Control module which contains a 50W
preamp driver (1xBLF571 device driving 2xBLF881 transistors in parallel). The output of the
Controller preamp is then split and fed to the RF inputs of each of the PAmodules.
The PAmodules contain 4x BLF888A devices that amplify the RF signal to produce 600W of
output power per PA. The amplified output signals of the two PAs are fed into a 3-way Combiner
and then into a Directional Coupler and finally out the top of the cabinet via a section of 1 5/8
transmission line.
The 1 5/8 output stack of the Transmitter is then fed into an inline 1 5/8 Harmonic Filter (if
required) before entering a channel mask BPF. The output of the BPF connects to theAntenna
feed to radiate the DTV signal on-air.
The Exciter receives two feedback signals from FWD and REV couplers located at the BPF
input and output. These before and after BPF feedback signals are used by the Exciter to provide
automatic Linear and Non-Linear pre-correction of the ideal 8-VSB forward path signal.
Additional feedback signals are provided to the Control module, which monitors these
samples to implement protective protocols including forward power reduction and shutting down
the TX in the event of high reflected power or other unsafe operating conditions. System FWD
and REV power samples are provided to the Control module from the Directional Coupler located
directly after the 3-way power combiner. The Control module also receives two feedback samples