DIGITAL COMMUNICATIONS (Part 3) by AD5XJ Ken
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Winlink 2000 System - Software - Hardware
PSCM, APP. B, NTS MPG-6, W3YVQ MPG6V14A-3/14, P-1 ARRL PSCM, App. B, NTS METHODS AND PRACTICES GUIDELINES CHAPTER 6 - NTSD - RADIO-EMAIL - W3YVQ MPG6V14A-3/14 Table of contents: ATTACHED GUIDANCE DOCUMENTS ........................................................................................... 2 LINKS ..................................................................................................................................................... 2 6. MPG 6 - DIGITAL - INTRODUCTION ..................................................................................................... 3 6.1 NTSD - GUIDELINES .............................................................................................................................. 4 6.1.1 NTSDGD4 - EAS/CAS/PAS - 6/2001 ........................................................................................... 4 I. SCOPE AND PURPOSE ............................................................................................................... 4 II. NTSD ROUTING APPROACHES .............................................................................................. 4 III. COORDINATION AND ROLES ............................................................................................... 4 IV. DIGITAL STATION OPERATING PRINCIPLES AND PRACTICES .................................... 5 V. AREA DIGITAL STANDARD OPERATING PROCEDURES ................................................. 7 6.1.2 NTSD & NTS NATIONAL EMCOMM ...................................................................................... -
47 CFR §97 - Rules of the Amateur Radio Service
47 CFR §97 - Rules of the Amateur Radio Service (updated January, 2014) Subpart A—General Provisions §97.1 Basis and purpose. The rules and regulations in this part are designed to provide an amateur radio service having a fundamental purpose as expressed in the following principles: (a) Recognition and enhancement of the value of the amateur service to the public as a voluntary noncommercial communication service, particularly with respect to providing emergency communications. (b) Continuation and extension of the amateur's proven ability to contribute to the advancement of the radio art. (c) Encouragement and improvement of the amateur service through rules which provide for advancing skills in both the communication and technical phases of the art. (d) Expansion of the existing reservoir within the amateur radio service of trained operators, technicians, and electronics experts. (e) Continuation and extension of the amateur's unique ability to enhance international goodwill. §97.3 Definitions. (a) The definitions of terms used in part 97 are: (1) Amateur operator. A person named in an amateur operator/primary license station grant on the ULS consolidated licensee database to be the control operator of an amateur station. (2) Amateur radio services. The amateur service, the amateur-satellite service and the radio amateur civil emergency service. (4) Amateur service. A radiocommunication service for the purpose of self-training, intercommunication and technical investigations carried out by amateurs, that is, duly authorized persons interested in radio technique solely with a personal aim and without pecuniary interest. (5) Amateur station. A station in an amateur radio service consisting of the apparatus necessary for carrying on radiocommunications. -
The Beginner's Handbook of Amateur Radio
FM_Laster 9/25/01 12:46 PM Page i THE BEGINNER’S HANDBOOK OF AMATEUR RADIO This page intentionally left blank. FM_Laster 9/25/01 12:46 PM Page iii THE BEGINNER’S HANDBOOK OF AMATEUR RADIO Clay Laster, W5ZPV FOURTH EDITION McGraw-Hill New York San Francisco Washington, D.C. Auckland Bogotá Caracas Lisbon London Madrid Mexico City Milan Montreal New Delhi San Juan Singapore Sydney Tokyo Toronto McGraw-Hill abc Copyright © 2001 by The McGraw-Hill Companies. All rights reserved. Manufactured in the United States of America. Except as per- mitted under the United States Copyright Act of 1976, no part of this publication may be reproduced or distributed in any form or by any means, or stored in a database or retrieval system, without the prior written permission of the publisher. 0-07-139550-4 The material in this eBook also appears in the print version of this title: 0-07-136187-1. All trademarks are trademarks of their respective owners. Rather than put a trademark symbol after every occurrence of a trade- marked name, we use names in an editorial fashion only, and to the benefit of the trademark owner, with no intention of infringe- ment of the trademark. Where such designations appear in this book, they have been printed with initial caps. McGraw-Hill eBooks are available at special quantity discounts to use as premiums and sales promotions, or for use in corporate training programs. For more information, please contact George Hoare, Special Sales, at [email protected] or (212) 904-4069. TERMS OF USE This is a copyrighted work and The McGraw-Hill Companies, Inc. -
Base Station Antenna Selection for LTE Networks
White paper Base station antenna selection for LTE networks Ivy Y. Kelly, Ph.D. technology development strategist, Sprint Martin Zimmerman, Ph.D. Base Station Antenna engineering director, CommScope Ray Butler, MSEE Wireless Network Engineering vice president, CommScope Yi Zheng, Ph.D. Base Station Antenna senior engineer, CommScope December 2017 Contents Executive summary 3 Antenna overview 3 LTE fundamentals 3 Selecting the optimum antenna for your network 5 Conclusion 6 References 6 About the authors 7 commscope.com 2 Executive summary Rapid mobile data growth is requiring the industry to use more sophisticated, higher-capacity access technologies like LTE, which supports many advanced antenna techniques. LTE requires precise containment of RF signals used to transmit mobile data, which can only be accomplished with high-performance antennas. This paper gives an overview of antennas and their application in practical configurations for various types of LTE antenna techniques. Antenna overview Antenna parameters can be separated into two categories, as shown The first LTE specification is part of 3GPP Release 8, which was below. Primary parameters (Table 1) are those specifically mentioned frozen in December 2008. LTE-Advanced generally refers to the LTE when defining the type of antenna used in a particular application. features that are found in Release 10 and beyond. LTE-Advanced For a given antenna vendor, the primary parameters are enough to features include CA, eight-layer DL transmission, four-layer UL identify a specific model that can be used. Secondary parameters transmission, and enhanced inter-cell interference coordination (Table 2) are those that impact performance and can be used to (eICIC).2 Release 10 features are just now being deployed. -
The FCC Filing
Dr. Theodore S. Rappaport, PE PO BOX 888 Riner, Virginia 24149 [email protected] November 10, 2018 Commissioners Federal Communications Commission 445 12th Street, SW Washington, DC 20554 Dear FCC Commissioners: This is a notice of ex parte, based on email communication I had with the CTO of the FCC, Dr. Eric Burger, on November 8, 2018, his reply on November 10, 2018, and my reply on November 11, 2018. The email communication is centered around a posting that appeared on the FCC ECFS system on November 7, 2018, and is part of an ongoing proceeding at the FCC, NPRM 16-239, that I and thousands of others view as a direct threat to the national security interests of the United States, as well as being detrimental to the hobby of amateur (“ham”) radio. Public comments made in FCC’s NPRM 16-239, and in FCC proceedings RM-11708, RM-11759, and RM-11306 proposed by the American Radio Relay League, show the vast number of rule violations and national security threats that continue to go unaddressed by the FCC. Commenters such as me view the lack of FCC acknowledgement of these problems as jeopardizing the safety of US citizens. NPRM 16-239 attempts to remove a limit on the baud rate of High Frequency (HF) shortwave transmissions, without first addressing ongoing rule violations pertaining to proper usage of the amateur radio service, the use of obscured, private messaging which is forbidden in Part 97 rules and creates national security concerns, as well as other violations. If allowed, NPRM 16-239 would perpetuate the current violations, and would authorize obscured transmissions of unlimited bandwidth over the global airwaves, further increasing the danger to our national security, since these transmissions cannot be intercepted or eavesdropped by other amateur radio operators or the FCC. -
Federal Communications Commission § 90.665
Federal Communications Commission § 90.665 § 90.656 Responsibilities of base sta- where within their authorized MTA, tion licensees of Specialized Mobile provided that: Radio systems. (1) The MTA licensee affords protec- (a) The licensees of base stations that tion, in accordance with § 90.621(b), to provide Specialized Mobile Radio serv- all sites for which applications were ice on a commercial basis of the use of filed on or prior to August 9, 1994. individuals, Federal government agen- (2) The MTA licensee complies with cies, or persons eligible for licensing any rules and international agreements under either subparts B or C of this that restrict use of frequencies identi- part will be responsible for exercising fied in their spectrum block, including effective operational control over all the provisions of § 90.619 relating to mobile and control stations that com- U.S./Canadian and U.S./Mexican border municate with the base station. The areas. base station licensee will be respon- (3) The MTA licensee limits its field sible for assuring that its system is op- strength at any location on the border erated in compliance with all applica- of the MTA service area in accordance ble rules and regulations. with § 90.671 and masks its emissions in accordance with § 90.669. (b) Customers that operate mobile (b) In the event that the authoriza- units on a particular Specialized Mo- tion for a previously authorized co- bile Radio system will be licensed to channel station within the MTA licens- that system. A customer that operates ee’s authorized spectrum block is ter- temporarily on more than one system minated or revoked, the MTA licens- will be deemed, when communicating ee’s co-channel obligations to such sta- with the other system, to be tempo- tion will cease upon deletion of the fa- rarily licensed to the other system and cility from the Commission’s licensing for that temporary period, the licensee record. -
SCS PACTOR 4 (Pdf)
1. Introduction 1 Introduction 1.1 SCS P4dragon, the next Generation Thank you for purchasing the SCS P4dragon DR7800 high performance HF radio modem. SCS modems are the original PACTOR mode modems developed by the people who have created all PACTOR modes. From SCS and SCS representatives, you will receive the best possible support and benefit from the concentrated knowledge of the PACTOR engineers who invented PACTOR. With the introduction of the P4dragon DR7800 modem, SCS also announces PACTOR-4 as a new mode of high performance data transmission over HF frequencies. P4dragon stands for high sophisticated algorithms of communication engineering and high computation power of the PACTOR modems of the fourth generation. 1.2 Packaging list This is a complete list of hardware and software supplied with the SCS P4dragon: • 1 x P4dragon DR7800 High Performance HF-Radio Modem • 1 x Installation Guide • 1 x SCS CD-ROM • 1 x 8 pole DIN cable • 1 x 13 pole DIN cable • 1 x USB cable • 1 x RJ45 Patch cable (with installed “network option”) 1.3 Requirements to operate a PACTOR Modem A transceiver capable of switching between transmit and receive within 20 ms. Most modern transceivers fulfill this requirement. A computer that provides an USB interface or Bluetooth capability. An appropriate terminal program to operate with a USB or Bluetooth virtual COM port. 1.4 About this installation guide This installation manual contains only relevant information about the installation of your SCS P4dragon modem and popular applications like HF email. You can find complete documentation and detailed descriptions of the command set of the P4dragon in the electronic version of the complete manual (PDF format) on the SCS CD-ROM supplied with your modem. -
Global Maritime Distress and Safety System (GMDSS) Handbook 2018 I CONTENTS
FOREWORD This handbook has been produced by the Australian Maritime Safety Authority (AMSA), and is intended for use on ships that are: • compulsorily equipped with GMDSS radiocommunication installations in accordance with the requirements of the International Convention for the Safety of Life at Sea Convention 1974 (SOLAS) and Commonwealth or State government marine legislation • voluntarily equipped with GMDSS radiocommunication installations. It is the recommended textbook for candidates wishing to qualify for the Australian GMDSS General Operator’s Certificate of Proficiency. This handbook replaces the tenth edition of the GMDSS Handbook published in September 2013, and has been amended to reflect: • changes to regulations adopted by the International Telecommunication Union (ITU) World Radiocommunications Conference (2015) • changes to Inmarsat services • an updated AMSA distress beacon registration form • changes to various ITU Recommendations • changes to the publications published by the ITU • developments in Man Overboard (MOB) devices • clarification of GMDSS radio log procedures • general editorial updating and improvements. Procedures outlined in the handbook are based on the ITU Radio Regulations, on radio procedures used by Australian Maritime Communications Stations and Satellite Earth Stations in the Inmarsat network. Careful observance of the procedures covered by this handbook is essential for the efficient exchange of communications in the marine radiocommunication service, particularly where safety of life at sea is concerned. Special attention should be given to those sections dealing with distress, urgency, and safety. Operators of radiocommunications equipment on vessels not equipped with GMDSS installations should refer to the Marine Radio Operators Handbook published by the Australian Maritime College, Launceston, Tasmania, Australia. No provision of this handbook or the ITU Radio Regulations prevents the use, by a ship in distress, of any means at its disposal to attract attention, make known its position and obtain help. -
GENERAL AVIATION ANTENNAS Clearly Better Performance—At Any Altitude
GENERAL AVIATION ANTENNAS Clearly better performance—at any altitude. RAMI antennas are known for their streamlined aesthetics, great value, and for what really matters when you're navigating at 24,000 feet: reliable performance. By maintaining our focus on antennas and keeping all of our design and manufacturing in house, the improvements will just keep on coming. COM VOR/LOC/GS Transponder/DME Transponder Marker Beacon GPS Antenna Diplexers/Splitter Base Station ELT Ground Vehicular Cable Assemblies COM AV‐10 Frequency: 118–137 MHz The AV‐10 is designed for high‐performance aircraft applications. It exhibits excellent electrical characteristics and incorporates an efficient aerodynamic 4‐bolt mounting base. The antenna essentially matches the styling of the communication antennas currently used on most singles and light twins. The antenna is designed to operate at speeds up to 350 mph and altitudes up to 50,000 ft. It has a drag force of 2.70 lb @ 250 mph. This antenna is a direct replacement for the CI 121. Antenna AV‐17 Frequency: 118–137 MHz The AV‐17 is designed specifically for mounting to the underside of an aircraft, providing an excellent radiation pattern for air‐to‐ground communications. It has a 4‐bolt mounting base and is low in profile. The antenna is designed to operate at speeds up to 350 mph and altitudes up to 50,000 ft. It has a drag force of 0.66 lb @ 250 mph. This antenna is a direct replacement for the CI 122. AV‐529 Frequency: 118–137 MHz The AV‐529 is designed for broadband communications (118‐137 MHz). -
Radio Frequency Utilization in the Bands of Principal Interest for Aeronautical Satellites
X-490-70-447 RADIO FREQUENCY UTILIZATION IN THE BANDS OF PRINCIPAL INTEREST FOR AERONAUTICAL SATELLITES JO HN J. BISA G A EARL J. HOLLIMAN ALLAN SCHNEIDER 0ECEMBER 1970- GODDARD SPACE FLIGHT CENTER GREENBELT, MARYLAND (ACCE EI$ t n THU 5924 R JUJN19?1 FPL~ k.SA CR ORYMhX OR AD NUMBER) (CATEGORY) rlcAr X-490-70-447 RADIO FREQUENCY UTILIZATION IN THE BANDS OF PRINCIPAL INTEREST FOR AERONAUTICAL SATELLITES John J. Bisaga Earl J. Holliman Allan Schneider December 1970 GODDARD SPACE FLIGHT CENTER Greenbelt, Maryland ACKNOWLEDGEMENT The preparation of this report involved the collection of con siderable information on operational procedures, equipment charac teristics, and parameters affecting frequency sharing. The organi zations which assisted in the provisions of this information are listed in Appendix E. The authors acknowledge in particular-the assistance of the following individuals who contributed many helpful comments during the final preparation of this report: Mr. J.L. Baker Mr. T.S. Golden NASA/Goddard Space NASA/Goddard Space Flight Center Flight Center Mr. P.A. Price Mr. J.B. McElroy NASA Headquarters NASA Headquarters Mr. C. Keys Mr. F. Frisbie DOT/Federal Aviation DOT/Federal Aviation Administration Administration Mr. G. Henderson Mr. W.B. Hawthorne DOT/Federal Aviation DOT/Federal Aviation Administration Administration In addition, the comments of the following were appreciated in preparation of Sections 3, 4, and 5. Mr. C.A. Petry Mr. F. Clese Aeronautical Radio Inc. Aeronautical Radio Inc. Mr. H.S. Smith Mr. R. Taylor Aeronautical Radio Inc. Aeronautical Radio Inc. Mr. E.J. Martin Mr. T.O. Calvit COMSAT Corpor&tion COMSAT Corporation i TABLE OF CONTENTS Section Page INTRODUCTION.1....................................1 1.1 Purpose.................................. -
The Winlink Radio E-Mail Network
The Winlink Radio e-Mail Network E-mail with or without the Internet Armstead Feland AE5OQ The Winlink Radio e-Mail Network E-mail with or without the Internet Phil Sherrod, W4PHS Developed by The Winlink DevelopmentTeam Defense Secretary Leon Panetta warns of “Cyber Pearl Harbor”. What is Winlink Worldwide system for sendinG/receivinG e-mail via radio Provides e-mail from almost anywhere in the world. Mature, well-tested and full featured system. Adopted for continGency communication by manyfederal, state and county governmentagencies Used by the National Guard (14 units inTennessee) Used by infrastructure-critical NGOs such asInternational & American Red Cross, Southern Baptist Disaster Relief, DHS Tiered AT&T Disaster Response & Recovery, FedEx, BridGestone EmerGency Response Team, etc. Amateur Radio Safety Foundation, Inc. Primary Winlink Networks Amateur (“ham”) radio. Over 10,000 amateurusers are reGistered. Winlink is used by most off-shore sailors. Operates within the international amateur radio frequency space. SHARES – Federal system providinG HF radio continGency communication for federal agencies. SHARES operates on NTIS, federal frequencies that are not part of the amateur radio frequency space. MARS – Military Auxiliary Radio Service. Provides continGency communication for U.S. military. Operates in NTIS MARS radio frequencyspace. Amateur Radio Safety Foundation, Inc. Disaster Assessment Picture – Kentucky Ice Storm Kentucky Ice Storm 2009 Cell, Land-line or Fax? NO! - Air Card? NO! -Public Safety, Mutual Aid? NO! - Satellite/Microwave? NO! -Winlink Radio E-Mail? Yes! Mobile from a TEMA vehicle. This picture was one of several sent by TEMA mobile through the Winlink radio email system. Amateur Radio Safety Foundation, Inc. -
IC-F3011/F3013/F4011/F4013 Instruction Manual
INSTRUCTION MANUAL VHF TRANSCEIVERS iF3011 iF3013 UHF TRANSCEIVERS iF4011 iF4013 This device complies with Part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful inter- ference. SAFETY TRAINING INFORMATION Your Icom radio generates RF electromagnetic energy during transmit mode. This radio is designed for and classified as “Occupational Use Only”, meaning it must be used only during the course of employment by indi- viduals aware of the hazards, and the ways to minimize W ARN ING such hazards. This radio is NOT intended for use by the “General Population” in an uncontrolled environment. This radio has been tested and complies with the FCC RF exposure limits for “Occupational Use Only”. In addition, your Icom radio complies with the following Standards and Guidelines with regard to RF energy and electromagnetic energy levels and evaluation of such levels for exposure to humans: • FCC OET Bulletin 65 Edition 97-01 Supplement C, Evaluating Compliance with FCC Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields. • American National Standards Institute (C95.1-1992), IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Fre- quency Electromagnetic Fields, 3 kHz to 300 GHz. • American National Standards Institute (C95.3-1992), IEEE Recom- mended Practice for the Measurement of Potentially Hazardous Electromagnetic Fields– RF and Microwave. • The following accessories are authorized for use with this product. Use of accessories other than those specified may result in RF ex- posure levels exceeding the FCC requirements for wireless RF ex- posure.; Belt Clip (MB-94), Rechargeable Li-Ion Battery Pack (BP- 230N/BP-232N) and Speaker-microphone (HM-131L).