Anywave ATSC 25W User manual

ANYWAVE
ATSC 25W DTV Transmitter
Quick Start Guide
Version 1.2 –September 29, 2014

ATSC 25W TX Quick Start Guide
ACT-25-QSG-DOC-V1.2, 09/29/2014 Page 2 of 13
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
INSTALL 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 [email protected], 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
1Introduction ......................................................................................6
2Organization of Manual....................................................................6
3TX System Overview .......................................................................7
4TX System Interconnect...................................................................8
5Initial Turn On ..................................................................................9

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1Introduction
This Quick Start Guide contains instructions to safely setup and turn on the
Anywave 25W DTV Transmitter. Please note that trained and qualified personnel are
required to install, maintain, and service this transmission equipment.
2Organization of Manual
This Manual is broken up into several sections.
Section 3 - TX system Overview: Provides a general overview of
the 25W Transmitter System
Section 4 –TX System Interconnect: Overview of interconnections of
the major subassemblies contained in the Transmitter system
Section 5 –Initial Turn On: How to safely turn on your Transmitter

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3TX System Overview
Final assembly and test of each transmitter is performed at the Anywave factory.
The Exciter is setup on the desired channel frequency and the TX is tested with the
complete RF system (if purchased) at full power into a load. All TX operating
parameters are optimized. Linear and Nonlinear precorrection is performed and
automatically stored in non-volatile memory inside the Exciter. A Factory Test Report
is completed for each system, providing a record of full power operating parameters
and performance. The TX then goes through a final 24-hour burn-in period and check
out before being shut done and packed up for shipment.
In your shipment, you should receive a copy of the following documentation.
- Packing Checklist
- Transmitter Factory Test Report
- 25W TX Quick Start Guide
- 25W PA and Exciter User Manuals
Carefully unpack and inspect all your equipment and please review the Packing
Checklist when you receive your system to be certain you have received all your system
components. Also, please be sure to identify and remove all packing materials and
supports (foam pads, etc.) prior to initial turn on of the equipment.
All 25W TX systems ship with an AC power cord included with the Exciter and
PA.

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4TX System Interconnect
The Anywave ATSC 25W DTV Transmitter consists of an Exciter, 25W PA, and a BPF
(optional) with two additional single port couplers for Exciter feedback samples
(optional). The diagram below shows the overall system interconnect between the system
components.
To PC for
Remote Ctrl
(192.168.1.143)
TS Input
Exciter
OUT
BPF
IN
To Antenna feed
Before Filter (50dB)
Directional Coupler
After Filter (50dB)
Directional Coupler
25W PA

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5Initial Turn On
Please locate and have handy for reference a copy of your 25W TX Factory Test
Report as well as the 25W TX Quick Start Guide, and 25W PA and Exciter
User Manuals.
1. With all equipment turned OFF, please make the cable connections according
to the System Interconnect Diagram of section 4. Make sure the BPF or PA
output is properly connected to your Antenna feed or a suitable station load
before proceeding further.
2. Turn ON the Exciter via its rear panel AC switch.
3. Check Exciter settings. Check the operating Frequency of the Exciter by
navigating to the Exciter FREQ submenu (simultaneously press Left and Right
buttons)
Check the Exciter drive level is set to -25dBm by navigating to the Exciter
RF submenu (from above, press ESC button then enter the RF submenu).
(Please refer to your Exciter User Manual for help with detailed operation of
the Exciter).
4. Turn the 25W PA ON via the PA rear panel breaker, then press the front panel
PARF On/Off button to turn ON the PA- which should turn BLUE when ON.
5. The built-in Exciter %FWD power meter has already been calibrated at the
factory to indicate 100% for 30W of TX system forward power measured after
the BPF.

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6. You are now ready to bring the TX up to power. To accomplish this, slowly
increase the drive level out of the Exciter by increasing the POWER setting in
the Exciter RF submenu while monitoring the FWD power meter on the Exciter
LCD screen (you will need to navigate between the Exciter RF submenu and
high level status screen (or monitor via the web interface)).
Begin to slowly raise the FWD System power by using the UP button on
the Exciter, while monitoring the Fwd system power meter on the Exciter
screen as shown below.
7. Continue to slowly raise the FWD power until you reach 100% (equivalent to
30W after the output BPF). Be careful to make small increases in the value of
POWER as you approach 100% output power level.
The chart below shows typical 30W TX power levels and performance at CH27
(551MHz) with a 6-pole BPF and couplers connected as shown in the
Interconnect Diagram of section 4.
The Chart below shows typical 30W TX power levels and performance at
different frequencies across the UHF spectrum.
Slowly increase
to raise FWD
SYS POWER
Monitor FWD
SYS POWER

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8. Check the SNR and Shoulder (LIMD and UIMD) RF performance of your
system on the Exciter hi level status screen as shown below. Linear and Non-
Linear corrections were already performed and optimized at a TPO of 30W
(after the BPF) in the factory and so the stored correction coefficients should
produce good results.
If you are operating at a TPO less than 30W and wish to rerun corrections, please
proceed with the following steps, otherwise please skip ahead to step 12.
9. (Optional Step - Rerunning Corrections) If you are operating at reduced power
and wish to rerun corrections to achieve better performance, you may now
perform Linear and Non-Linear corrections. (Please refer to the Exciter User
Manual for detailed instructions on running corrections). Before running
corrections, it is important to verifyproper feedback signal levels. There are two
feedback signal samples used to compute corrections. “RF IN A” (After BPF)
is used to calculate Linear correction coefficients while “RF IN B” (Before BPF)
is used to compute the Non-Linear correction coefficients.
10. (Optional Step) Navigate to the Exciter “DPD” submenu in the Advanced User
menu (simultaneously press Left and Right buttons, then simultaneously press
UP and Down buttons). Be sure the value of Feedback Sample Signal Input
(FSSI) for both A (after) and B (before) reads somewhere between 45% and 75%
- which roughly corresponds to a value of -15 to -5 dBm as measured on a power
meter (note: the FSSI indicator toggles between A and B and will “flash” when
the signal level is out of range, too high or too low). Add or remove the
appropriate attenuator padding to achieve feedback signal levels in the desired
range. Note the AFTER filter feedback sample is used to compute the SNR and
Shoulder Metrics displayed.
11. (Optional Step) Navigate to the Exciter “SYSTEM” submenu and select
UPDATE under ADPC to run corrections. The exciter will then proceed through
4 stages of correction, computing Linear and Non-Linear corrections, and
automatically saving the coefficients into non-volatile memory upon
completion. The correction process typically takes from 8-10 minutes to
complete while real-time performance metrics of SNR and Shoulder
performance are displayed on the LCD.

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12. Check RF Performance metrics (SNR, LIMD, UIMD) on the front panel screen
of the exciter.
Your TX should now be up and running properly into your load or on-air
antenna. Continue to monitor system parameters as you allow the transmitter to
operate and stabilize at full output power for another 30 minutes.
13. To turn the TX On/Off, please use the RF On/OFF control in the RF submenu
of the exciter LCD or the exciter web interface.
14. For Remote TX Monitoring and Control, you may network to the Exciter
REMOTE RJ-45 rear panel connection at 192.168.1.143 –you can change the
exciter ipaddress by navigating to the CONFIG submenu (simultaneously press
Left and Right buttons) and change the value of IP (please reference your
Exciter User Manual for details).
15. If using the Exciter Built-in remote web interface for remote control, please be
sure to set the Exciter to REMOTE mode (set CTL to RMT) before leaving the
transmitter site. The Remote/Local setting is located under the SYSTEM
submenu. Most of the Local TX controls are available on the remote web
interface, including On/Off, Raise/Lower power, etc. (refer to the Exciter user
manual for details).

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Anywave Communication Technologies Inc.
300 Knightsbridge Parkway, Suite 150, Lincolnshire, IL 60069
Tel: [phone]
Fax: [phone]
Email: [email protected]
http://www.anywavecom.com/en/