THE EUROPEAN TABLE of FREQUENCY ALLOCATIONS and APPLICATIONS in the FREQUENCY RANGE 8.3 Khz to 3000 Ghz (ECA TABLE)
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5G Candidate Band Study
5G Candidate Band Study Study on the Suitability of Potential Candidate Frequency Bands above 6GHz for Future 5G Mobile Broadband Systems Final Report to Ofcom, March 2015 Contributors Steve Methley, William Webb, Stuart Walker, John Parker Quotient Associates Limited Compass House, Vision Park, Chivers Way, Histon, Cambridge, CB24 9AD, UK EMAIL [email protected] WEB www.QuotientAssociates.com Ver si on 02 Status Approved History Reviewed by Ofcom Type Public 5G Candidate Band Study | Contributors Final Report : qa1015 © Quotient Associates Ltd. 2015 Commercial in Confidence. No part of the contents of this document may be disclosed, used or reproduced in any form, or by any means, without the prior written consent of Quotient Associates Ltd. ii EXECUTIVE SUMMARY Objective and scope Within industry and academia there is significant activity in research and development towards the next generation of mobile broadband technologies (5G). Coupled with this there is increasing interest in identifying the frequency bands that will be needed to deliver 5G services. At the moment there is no overall consensus on what 5G will actually be. Work in ITU-R (WP5D) is ongoing to develop a vision for 5G (IMT 2020) including identifying the target capabilities. It is, however, widely accepted that at least one element of 5G will require the use of spectrum bands at much higher frequencies than those that current mobile broadband technologies can make use of, e.g. bands above 6 GHz. A first step currently being discussed is a proposal for an agenda item for the World Radio Conference after next (WRC-19) to identify suitable high frequency spectrum for 5G in the ITU Radio Regulations. -
Handbookhandbook Mobile-Satellite Service (MSS) Handbook
n International Telecommunication Union Mobile-satellite service (MSS) HandbookHandbook Mobile-satellite service (MSS) Handbook *00000* Edition 2002 Printed in Switzerland Geneva, 2002 ISBN 92-61-09951-3 Radiocommunication Bureau Edition 2002 THE RADIOCOMMUNICATION SECTOR OF ITU The role of the Radiocommunication Sector is to ensure the rational, equitable, efficient and economical use of the radio-frequency spectrum by all radiocommunication services, including satellite services, and carry out studies without limit of frequency range on the basis of which Recommendations are adopted. The regulatory and policy functions of the Radiocommunication Sector are performed by World and Regional Radiocommunication Conferences and Radiocommunication Assemblies supported by Study Groups. Inquiries about radiocommunication matters Please contact: ITU Radiocommunication Bureau Place des Nations CH -1211 Geneva 20 Switzerland Telephone: +41 22 730 5800 Fax: +41 22 730 5785 E-mail: [email protected] Web: www.itu.int/itu-r Placing orders for ITU publications Please note that orders cannot be taken over the telephone. They should be sent by fax or e-mail. ITU Sales and Marketing Division Place des Nations CH -1211 Geneva 20 Switzerland Telephone: +41 22 730 6141 English Telephone: +41 22 730 6142 French Telephone: +41 22 730 6143 Spanish Fax: +41 22 730 5194 Telex: 421 000 uit ch Telegram: ITU GENEVE E-mail: [email protected] The Electronic Bookshop of ITU: www.itu.int/publications ITU 2002 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. International Telecommunication Union HandbookHandbook Mobile-satellite service (MSS) Radiocommunication Bureau Edition 2002 - iii - FOREWORD In today’s world, people have become increasingly mobile in both their work and play. -
Citizens' Band (CB) Radio
Citizens’ Band (CB) radio – Authorising Amplitude Modulation (AM) modes of operation Permitting AM double and single side band CB radio in the UK Statement Publication date: 10 December 2013 Contents Section Page 1 Executive Summary 1 2 Introduction and background 2 3 Consultation Responses 5 4 Conclusions and next steps 10 Annex Page 1 List of non-confidential respondents 11 Citizens’ Band (CB) radio – Authorising Amplitude Modulation (AM) modes of operation Section 1 1 Executive Summary 1.1 This Statement sets out Ofcom’s decision to proceed with proposals made in our Consultation “Citizens’ Band (CB) radio – Authorising Amplitude Modulation (AM) modes of operation”1 (the ‘Consultation') which was published on 7 October 2013 and closed on 8 November 2013. 1.2 The Consultation proposed to amend current arrangements for Citizens’ Band (CB) Radio in the UK to allow the use of Amplitude Modulation (AM) Double-sideband (DSB) and Single-sideband (SSB) transmission on CB radio. 1.3 Ofcom specifically proposed to: • Authorise the use of AM emissions on European Conference of Postal and Telecommunications Administrations (CEPT) harmonised channels in line with European Communication Committee (ECC) Decision (11)032; and • Authorise such use on a licence exempt basis (in line with our authorisation approach for other modes of operation for CB). 1.4 These proposals followed on from work carried out in Europe. In June 2011 the ECC, part of CEPT, published a Decision, ECC/DEC/ (11)03 (the ‘Decision’) on the harmonised use of frequencies for CB radio equipment. The Decision sought to harmonise the technical standards and usage conditions relating to the use of frequencies for CB radio equipment in CEPT administrations. -
47 CFR Ch. I (10–1–97 Edition) § 80.223
§ 80.223 47 CFR Ch. I (10±1±97 Edition) (3) The interval between successive able to be manually keyed. If provi- tones must not exceed 4 milliseconds; sions are made for automatically (4) The amplitude ratio of the tones transmitting the radiotelegraph alarm must be flat within 1.6 dB; signal or the radiotelegraph distress (5) The output of the device must be signal, such provisions must meet the sufficient to modulate the associated requirements in subpart F of this part. transmitter for H2B emission to at (d) Any EPIRB carried as part of a least 70 percent, and for J2B emission survival craft station must comply to within 3 dB of the rated peak enve- with the specific technical and per- lope power; formance requirements for its class (6) Light from the device must not contained in subpart V of this chapter. interfere with the safe navigation of the ship; [51 FR 31213, Sept. 2, 1986, as amended at 53 (7) After activation the device must FR 8905, Mar. 18, 1988; 53 FR 37308, Sept. 26, automatically generate the radio- 1988; 56 FR 11516, Mar. 19, 1991] telephone alarm signal for not less than 30 seconds and not more than 60 § 80.225 Requirements for selective seconds unless manually interrupted; calling equipment. (8) After generating the radio- This section specifies the require- telephone alarm signal or after manual ments for voluntary digital selective interruption the device must be imme- calling (DSC) equipment and selective diately ready to repeat the signal; calling equipment installed in ship and (9) The transmitter must be auto- coast stations. -
Part 23.5 Aeronautical Radio Frequency
GHANA CIVIL AVIATION (AIR NAVIGATION SERVICE) DIRECTIVES PART 23: SUBPART 5 – AERONAUTICAL RADIO FREQUENCY SPECTRUM UTILIZATION 23.5-1 NOV 2018 GHANA CIVIL AVIATION DIRECTIVES Part 23 Subpar 5 - Aeronautical Radio Spectrum Frequency Utilization TABLE OF CONTENT AERONAUTICAL RADIO FREQUENCY SPECTRUM UTILIZATION............................. 1 TABLE OF CONTENT ............................................................................................... 2 23.5.1 DEFINITIONS ........................................................................................ 4 23.5.2 DISTRESS FREQUENCIES .................................................................... 5 23.5.3 UTILIZATION OF FREQUENCIES BELOW 30 MHz ................................... 7 23.5.4 UTILIZATION OF FREQUENCIES ABOVE 30 MHz ............................... 10 23.5-2 NOV 2018 GHANA CIVIL AVIATION DIRECTIVES Part 23 Subpar 5 - Aeronautical Radio Spectrum Frequency Utilization Introduction In Subpart 5 of Part 23, the requirements and guidance material on the utilization of aeronautical frequencies are defined. The International Telecommunication Union (ITU) has set up a framework in which the demands for radio spectrum from the State of Ghana are balanced with the interests of different radio service users to produce a planned radio environment incorporating interference-free, effective and efficient radio spectrum use. Subpart 5 contains information on the assignment planning of individual aeronautical radio stations operating or planned to operate in different frequency bands. -
Amateur Radio Satellites 101 an Introduction to the AMSAT “Easy Sats”
Amateur Radio Satellites 101 An introduction to the AMSAT “Easy Sats” Presented to the: Fayette County Amateur Radio Club Presented by: Joe Domaleski, KI4ASK AMSAT #41409 Date: November 21, 2019 Revision 2 [email protected] 1 The real title of this presentation How to have a QSO on a repeater that is 4 inches square, traveling 17,000 MPH 600 miles away, in outer space, with a handheld radio, running 5 watts. 2 Agenda • Why satellites? • Where are the satellites located? • What is a “hamsat”? • What are the Easy Sats? • What’s inside a hamsat? • An example pass of AO-91 • Emergency traffic via AO-92 • Basic equipment I use • An example pass of AO-92 • Here’s how to make your 1st QSO • Where the “cool kids” hang out • Some memorable QSO’s Stone Mountain Hamfest 2019 • Other satellite topics with Daryl Young, K4RGK President of NFARL & • Some general tips AMSAT Ambassador • Suggested resources 3 Why satellites? • Easy to get started • Only need a Technician license • Doesn’t require expensive gear • DX when HF conditions are poor • Science involved in tracking • Camaraderie of AMSAT community • Skill involved in making contact • Fun for kids of all ages • Adds another skill to your toolkit • Like “foxhunting” in the sky • The passes are short • The wonderment of it all • Because I couldn’t be an astronaut • It’s a lot of fun! Example QSO with K5DCC https://www.facebook.com/dennyj/videos/10157742522839570/ 4 Where are the satellites located? The Easy Sats are in LEO – 300-600 miles up Source: Steve Green (KS1G) & Paul Stoetzer (N8HM) 5 What -
Spectrum Management: a State of the Profession White Paper
Astro2020 APC White Paper Spectrum Management: A State of the Profession White Paper Type of Activity: ☐ Ground Based Project ☐ Space Based Project ☐ Infrastructure Activity ☐ Technological Development Activity ☒ State of the Profession Consideration ☐ Other Principal Author: Name: Liese van Zee Institution: Indiana University Email: [email protected] Phone: 812 855 0274 Co-authors: (names and institutions) David DeBoer (University of California, Radio Astronomy Lab), Darrel Emerson (Steward Observatory, University of Arizona), Tomas E. Gergely (retired), Namir Kassim (Naval Research Laboratory), Amy J. Lovell (Agnes Scott College), James M. Moran (Center for Astrophysics | Harvard & Smithsonian), Timothy J. Pearson (California Institute of Technology), Scott Ransom (National Radio Astronomy Observatory), and Gregory B. Taylor (University of New Mexico) Abstract (optional): This Astro2020 APC white paper addresses state of the profession considerations regarding spectrum management for the protection of radio astronomy observations. Given the increasing commercial demand for radio spectrum, and the high monetary value associated with such use, innovative approaches to spectrum management will be necessary to ensure the scientific capabilities of current and future radio telescopes. Key aspects include development of methods, in both hardware and software, to improve mitigation and excision of radio frequency interference (RFI). In addition, innovative approaches to radio regulations and coordination between observatories and commercial -
Executive Summary of the ICAO Position for ITU WRC-15 Radio
Executive Summary of the ICAO Position for ITU WRC-15 Radio frequency spectrum is a scarce natural resource with finite capacity for which demand is constantly increasing. The requirements of civil aviation as well as other spectrum users continue to grow at a fast pace, thus creating an ever-increasing pressure to an already stretched resource. International competition between radio services obliges all spectrum users, aeronautical and non- aeronautical alike, to continually defend and justify retention of existing or addition of new frequency bands. The ICAO Position aims at protecting aeronautical frequency spectrum for all radiocommunication and radionavigation systems used for ground facilities and on board aircraft. The ICAO Position addresses all radioregulatory aspects on aeronautical matters on the agenda for the WRC-15. The items of main concern to aviation include the following: identification of additional frequency bands for the International Mobile Telecommunications (IMT). Under this agenda item, the telecommunications industry is seeking up to 1200 MHz of additional spectrum in the 300 MHz to 6 GHz range for mobile and broadband applications. It is expected that a number of aeronautical frequency bands will come under pressure for potential repurposing, especially some of the Primary Surveillance Radar (PSR) bands. Existing frequency allocations which are vital for the operation of aeronautical very small aperture terminal (VSAT) ground-ground communication networks, especially in tropical regions, are also expected to come under pressure. Due to decisions made by a previous WRC, this has already become a problematic issue in Africa. WRC-15 agenda items 1.1 and 9.1.5 refer; potential radioregulatory means to facilitate the use of non-safety satellite service frequency bands for a very safety-critical application, the command and control link for remotely piloted aircraft systems (RPAS) in non-segregated airspace. -
CITC Operational Procedures for Issuing Frequency Assignments and Radio Licenses for Professional Radiocommunication Services
CITC Operational Procedures for Issuing Frequency Assignments and Radio Licenses for Professional Radiocommunication Services Contents 1. INTRODUCTION....................................................................................................... 5 2. AERONAUTICAL SERVICES ................................................................................. 6 2.1 INTRODUCTION .................................................................................................. 6 2.2 DESCRIPTION OF SERVICES/LICENCES ................................................................ 6 2.2.1 LICENCES AVAILABLE. ........................................................................................ 6 2.2.2 WHO CAN APPLY ................................................................................................ 7 2.3 FREQUENCY BANDS ........................................................................................... 7 2.4 LICENSING GUIDELINES ...................................................................................... 7 2.4.1 CALL SIGNS ....................................................................................................... 7 2.4.2 FITTING OF EQUIPMENT ...................................................................................... 8 2.4.3 OPERATION OF EQUIPMENT ................................................................................ 8 2.5 LICENCE APPLICATION FORMS ............................................................................ 8 2.6 TIMESCALES FOR LICENCE ISSUE ....................................................................... -
Es 201 980 V3.2.1 (2012-06)
ETSI ES 201 980 V3.2.1 (2012-06) ETSI Standard Digital Radio Mondiale (DRM); System Specification 2 ETSI ES 201 980 V3.2.1 (2012-06) Reference RES/JTC-DRM-26 Keywords broadcasting, digital, DRM, radio ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N° 348 623 562 00017 - NAF 742 C Association à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88 Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http://portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. © European Telecommunications Standards Institute 2012. -
Design of SWB Antenna with Triple Band Notch Characteristics for Multipurpose Wireless Applications
applied sciences Article Design of SWB Antenna with Triple Band Notch Characteristics for Multipurpose Wireless Applications Warsha Balani 1, Mrinal Sarvagya 1, Tanweer Ali 2,* , Ajit Samasgikar 3, Saumya Das 4, Pradeep Kumar 5,* and Jaume Anguera 6,7 1 School of Electronics and Communication Engineering, Reva University, Bangalore 560064, India; [email protected] (W.B.); [email protected] (M.S.) 2 Department of Electronics and Communication, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India 3 MMRFIC Technology Pvt Ltd., Bangalore 560016, India; [email protected] 4 Department of Information Technology, Sikkim Manipal Institute of Technology, Sikkim Manipal University, Sikkim 737102, India; [email protected] 5 Discipline of Electrical, Electronic and Computer Engineering, University of KwaZulu-Natal, Durban 4041, South Africa 6 Fractus Antennas, 08174 Barcelona, Spain; [email protected] 7 Electronics and Telecommunication Department, Universitat Ramon LLull, 08022 Barcelona, Spain * Correspondence: [email protected] (T.A.); [email protected] (P.K.) Abstract: A compact concentric structured monopole antenna for super wide band (SWB) applica- tions with triple notch band characteristics is designed and experimentally validated. The antenna covers an immense impedance bandwidth (1.6–47.5 GHz) with sharp triple notch bands at 1.8– 2.2 GHz, 4–7.2 GHz, and 9.8–10.4 GHz to eliminate interference from co-existing advanced wireless services (AWS), C bands, and X bands, respectively. By loading an E-shaped stub connected at the top of the patch and by etching a split elliptical slot at the lower end of the radiating patch, the band rejection characteristics from 1.8–2.2 GHz for the AWS and 4–7.2 GHz for the C band are achieved, Citation: Balani, W.; Sarvagya, M.; respectively. -
General Disclaimer One Or More of the Following Statements May Affect
General Disclaimer One or more of the Following Statements may affect this Document This document has been reproduced from the best copy furnished by the organizational source. It is being released in the interest of making available as much information as possible. This document may contain data, which exceeds the sheet parameters. It was furnished in this condition by the organizational source and is the best copy available. This document may contain tone-on-tone or color graphs, charts and/or pictures, which have been reproduced in black and white. This document is paginated as submitted by the original source. Portions of this document are not fully legible due to the historical nature of some of the material. However, it is the best reproduction available from the original submission. Produced by the NASA Center for Aerospace Information (CASI) . AE (NASA-TM-74770) SATELLITES FOR DISTRESS 77-28178 ALERTING AND LOCATING; REPORT BY TNTERAG .ENCY COMMITTEE FOR SEARCH AND RESCUE !^ !I"^ U U AD HOC WORKING GROUP Final Report. ( National. Unclas Aeronautics and Space Administration) 178 p G3 / 15 41346 0" INTERAGENCY COMMITTEE FOR SEARCH AND RESCUE AD HOC WORKING GROUP REPORT ON SATELLITES FOR DISTRESS ALERTING AND LOCATING FINAL REPORT OCTOBER 1976 r^> JUL 1977 RASA STI FACIUIV INPUT 3DNUH ^;w ^^^p^112 ^3 jq7 Lltl1V797, I - , ^1^ , - I t Y I FOREWORD L I^ This report was prepared to document the work initiated by the ad hoc working group on satellites for search and rescue (SAR). The ad hoc L working group on satellites for distress alerting and locating (DAL), formed 1 in November 1975 by agreement of the Interagency Committee on Search and Rescue (ICSAR), consisted of representatives from Maritime Administration, NASA Headquarters, Goddard Space Flight Center, U.S.