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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. -
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 -
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. -
1115-Dromas-SSTV.Pdf
10th Annual CubeSat Developers’ Workshop 2013 Cal Poly, San Luis Obispo – California – USA Development of an SSTV camera (Use of a commercial product) DROMAS C.*, SWINGEDOUW F., DELAPORTE J., CAPITAINE T. *: [email protected] (Ph.D Student) 1. Laboratoire des Technologies Innovantes (LTI - EA3899), Université de Picardie Jules Verne (UPJV) Saint-Quentin, France 2. Institut Supérieur des Sciences et Techniques (INSSET/UPJV) 48, rue Raspail CS 10422 02315 Saint-Quentin cedex, France Outline 1. Institut Supérieur des Sciences et Techniques (INSSET/UPJV) 2. Sending images from space 3. Slow Scan TeleVision 4. Proof of concept 5. Conclusion [email protected] 10th Annual CubeSat Developers’ Workshop 2013 – San Luis Obispo – USA 2/19 INstitut Supérieur des Sciences et Techniques (INSSET/UPJV) Université de Picardie Jules Verne (Amiens) +8 +7 Doctor +6 +5 Embedded Systems +4 Logistic – Management and engineering Master +3 +2 Web development Engineer Sciences +1 Bachelor European Academic Degree System [email protected] 10th Annual CubeSat Developers’ Workshop 2013 – San Luis Obispo – USA 3/19 INstitut Supérieur des Sciences et Techniques (INSSET/UPJV) Platforms projects We are mainly working on three different platforms : PRO.MO.CO; composed of a set of mobile robots built from autonomous software and hardware modules. The ground station (GENSO compatible); for amateur radio and scientific data transmitted by satellites decoding, controllable remotely through the Internet. The CubeSat projects; based on the development of all the modules constituting a CubeSat and which the payload will include a scientific experiment and will handle video images transmission to different ground stations. -
Citizens' Band (CB) Radio Spectrum Use – Information and Operation
Citizens’ Band Radio equipment– information and operation Citizens’ Band (CB) radio spectrum use – information and operation Of 364 Guidance Publication date: March 2018 Citizens’ Band Radio equipment– information and operation Contents Section Page 1 Regulatory and equipment information 1 2 Frequently asked questions 5 3 CB operating practice 8 Citizens’ Band Radio equipment– information and operation Section 1 Regulatory and equipment information Citizens’ Band (‘CB’) radio 1.1 Citizens’ Band (‘CB’) radio operates in the 27 MHz band. It is a short-range radio service for both hobby and business use. It is designed to be used without the need for technical qualifications. However, its use must not cause interference to other radio users. Consequently, only radios meeting certain specific requirements may be used. These are described below. How Ofcom authorises the use of CB radio 1.2 Ofcom seeks to reduce regulation, where possible. In 2006, we therefore made exemption regulations1, removing the need for a person to hold a licence to operate CB radio equipment using Angle Modulation (FM/PM). 1.3 In 2014, Ofcom made further exemption regulations2, which permitted the operation of CB radio equipment using two additional modes of Amplitude Modulation (AM) - Double Side Band (DSB) and Single Side Band (SSB). This followed an international agreement3 made in 2011.”. 1.4 CB users share spectrum in a frequency band used by the Ministry of Defence (MOD). CB users must therefore accept incoming interference caused by use of this spectrum by the MOD. 1.5 CB radio equipment must be operated on a 'non-interference’ basis. -
Merit Badge Requirements 1
Scout Name: ____________________________________________ Unit #: __________ Date: ________________ RADIO Merit Badge Requirements 1. Explain what radio is. Include in your explanation: the differences between broadcast radio and hobby radio, and the differences between broadcasting and two-way communicating. Also discuss broadcast radio and amateur radio call signs and using phonetics. 2. Sketch a diagram showing how radio waves travel locally and around the world. How do the broadcast radio stations, WWV and WWVH, help determine what you will hear when you listen to the radio? 3. Do the following: A. Draw a chart of the electromagnetic spectrum covering 100 kilohertz (khz) to 1000 megahertz (Mhz). B. Label the MF, HF, VHF UHF, and microwave portions of the spectrum on your diagram. C. Locate on your chart at least eight radio services such as AM and FM commercial broadcast, CB, television, amateur radio (at least four ham radio bands), and police. D. Discuss why some radio stations are called DX and others are called local. Explain who the FCC and the ITU are. 4. Explain how radio waves carry information. Include in your explanation: transceiver, transmitter, amplifier, and antenna. 5. Explain to your counselor the safety precautions for working with radio gear, particularly direct current and Rf grounding. 6. Do the following: A. Explain the differences between a block diagram and a schematic diagram. B. Draw a block diagram that includes a transceiver, amplifier, microphone, antenna, and feedline. C. Explain the differences between an open circuit, a closed circuit, and a short circuit. D. Draw eight schematic symbols. Explain what three of the represented parts do. -
Choosing a Ham Radio
Choosing a Ham Radio Your guide to selecting the right equipment Lead Author—Ward Silver, NØAX; Co-authors—Greg Widin, KØGW and David Haycock, KI6AWR • About This Publication • Types of Operation • VHF/UHF Equipment WHO NEEDS THIS PUBLICATION AND WHY? • HF Equipment Hello and welcome to this handy guide to selecting a radio. Choos- ing just one from the variety of radio models is a challenge! The • Manufacturer’s Directory good news is that most commercially manufactured Amateur Radio equipment performs the basics very well, so you shouldn’t be overly concerned about a “wrong” choice of brands or models. This guide is intended to help you make sense of common features and decide which are most important to you. We provide explanations and defini- tions, along with what a particular feature might mean to you on the air. This publication is aimed at the new Technician licensee ready to acquire a first radio, a licensee recently upgraded to General Class and wanting to explore HF, or someone getting back into ham radio after a period of inactivity. A technical background is not needed to understand the material. ABOUT THIS PUBLICATION After this introduction and a “Quick Start” guide, there are two main sections; one cov- ering gear for the VHF and UHF bands and one for HF band equipment. You’ll encounter a number of terms and abbreviations--watch for italicized words—so two glossaries are provided; one for the VHF/UHF section and one for the HF section. You’ll be comfortable with these terms by the time you’ve finished reading! We assume that you’ll be buying commercial equipment and accessories as new gear. -
Automated Frequency Coordination (AFC) Systems Are Known by Different Names in Different Frequency Bands
AUTOMATED FREQUENCY COORDINATION AN ESTABLISHED TOOL FOR MODERN SPECTRUM MANAGEMENT MARCH 2019 Research Report Automated Frequency Coordination An Established Tool for Modern Spectrum Management Table of Contents Executive Summary .............................................................................................................................. 2 Automated Frequency Coordination: An Established Tool for Modern Spectrum Management ............... 6 1. Introduction and Database Basics ................................................................................................ 6 A. Wireline to Wireless: Database Coordination in Telecommunications ........................................... 7 B. Automated Frequency Coordination Databases: The Basics ....................................................... 11 2. Frequency Coordination Databases: Manual to Automated to Dynamic ....................................... 16 A. Manual, Database-Informed Coordination ................................................................................ 17 B. Semi-Automated, Database-Assisted Coordination: 70/80/90 GHz and LSA ................................ 18 C. Automated Database Frequency Coordination: TV White Space ................................................. 21 D. Dynamic Coordination Databases: The CBRS Spectrum Access System ........................................ 24 3. The Benefits of Automated Frequency Coordination ................................................................... 28 A. Benefits to industry, consumers and -
Dxing: Fun Or Frustration? “Dxing Is One of the Most Alluring Aspects of Amateur Radio
It Seems to Us David Sumner, K1ZZ — [email protected] ARRL Chief Executive Officer DXing: Fun or Frustration? “DXing is one of the most alluring aspects of Amateur Radio. It is challenging, educational, and fun. But it can lead to frustration, even for non-participants.” DXing, the quest to contact distant stations, is as old as Amateur cumstances. Regrettably, the same cannot be said of everyone Radio itself. In the late 1920s, the measure of a station and its in the audience. operator was whether Worked All Continents had been achieved. In 1937 the ARRL introduced the DX Century Club, It is in everyone’s interest (including those who aren’t interested which has evolved greatly and remains by far the most popular in the DXpedition) that QSOs be made as quickly as possible. yardstick for personal achievement in Amateur Radio. Currently Efficiency requires discipline. Discipline means listening to the there are 340 entities, mostly independent countries or geo- instructions of the DX operator and not transmitting except when graphically separate islands, on the DXCC List. Some of them invited. It means not ever making an unidentified transmission are rarely on the air, so when they are — especially if the activa- on the DXpedition frequency. It means not responding on the air tion is by a DXpedition that may not repeated for several years when someone else does something stupid, deliberately or oth- — it attracts a lot of attention on the HF bands. At times literally erwise. There are a few among us who seem to delight in pro- thousands of stations will be competing for the attention of one voking negative reactions; don’t reward them. -
Two‐Way Radio Week 42
52 Weeks of Preparedness – Two‐way Radio Week 42 By Don Gardner Clearwater County Office of Emergency Management Can you imagine how you will communicate with your family during an emergency when no cell phones are working? Could this even happen? Yes, it can, and it has, even here in Clearwater County. When disasters occur, the public often loses several means of communicating all at once. If you remember during the fires of 2015 the cell phone system was overloaded and many landlines didn’t work. First responders rely on two‐way radios daily and when disasters strike, and so can we. The are many times you can use two‐way radios with your family and friend like during a disaster, or, more commonly, when camping, hunting, during ATV and snowmobile adventures, and between cars when traveling. It may seem like an old fashion technology, but it is so reliable. There are many types of radios you can use and each provides different capacities and expense. Today we will cover four varieties that could work for you. Family Radio Service (FRS) and the General Mobile Radio Service (GMRS) radios are low‐power, inexpensive handheld ‘walkie talkies,’ which can be used for short‐distance communications. Most of these radios are sold as a combo sets with both the FRS and GMRS channels in one radio. You will find them in the sporting goods section of stores. The packages often exaggerates and say they will work for 20‐50 miles or more. Generally, the actual range of FRS/GMRS radios will be significantly less than advertised. -
Amateur Radio Repeater Basics
Amateur Radio FM Repeater Basics Al Duncan – VE3RRD Updated October 2007 For a list of frequencies of operation for Canadian Amateur Radio operations, refer to RBR-4 “Standards for the Operation of Radio Stations in the Amateur Radio Service” which can be found on the Industry Canada website at: http://strategis.ic.gc.ca/epic/internet/insmt-gst.nsf/en/sf05478e.html Schedule I lists frequencies for the various “ham bands” in use (Canada is in IARU Region 2). The bands most often used for FM repeater operations (listed in order of popularity) are: 144 – 148 MHz referred to as the “2 meter” band (2M band) 430 – 450 MHz referred to as the “440 band” or the “70cm band” 50 – 54 MHz referred to as the “6 meter band” 28 – 29.7 MHz referred to as the “10 meter band” 220 – 225 MHz referred to as the “220 band” or “1 ¼ meter band” or “125 cm band” 902 – 928 MHz referred to as the “900 band” 1240 – 1300 MHz referred to as the “23 cm band” Note that the name “2 meter”, “70 cm” etc. refers to the approximate wavelength of the radio wave. Within these frequency ranges, “standards” have been created as to what frequencies can be used for repeater transmit (output) and receive (input). In most cases, FM (frequency modulation) is used with repeater operations. The most popular transceivers available today will either be “2M only” or “2M/440 dual-band”, with the occasional model offering three or even four bands of operation. Simplex When you wish to talk to another ham without using a repeater, a “simplex” frequency is used. -
Ethics and Operating Procedures for the Radio Amateur 1
EETTHHIICCSS AANNDD OOPPEERRAATTIINNGG PPRROOCCEEDDUURREESS FFOORR TTHHEE RRAADDIIOO AAMMAATTEEUURR Edition 3 (June 2010) By John Devoldere, ON4UN and Mark Demeuleneere, ON4WW Proof reading and corrections by Bob Whelan, G3PJT Ethics and Operating Procedures for the Radio Amateur 1 PowerPoint version: A PowerPoint presentation version of this document is also available. Both documents can be downloaded in various languages from: http://www.ham-operating-ethics.org The PDF document is available in more than 25 languages. Translations: If you are willing to help us with translating into another language, please contact one of the authors (on4un(at)uba.be or on4ww(at)uba.be ). Someone else may already be working on a translation. Copyright: Unless specified otherwise, the information contained in this document is created and authored by John Devoldere ON4UN and Mark Demeuleneere ON4WW (the “authors”) and as such, is the property of the authors and protected by copyright law. Unless specified otherwise, permission is granted to view, copy, print and distribute the content of this information subject to the following conditions: 1. it is used for informational, non-commercial purposes only; 2. any copy or portion must include a copyright notice (©John Devoldere ON4UN and Mark Demeuleneere ON4WW); 3. no modifications or alterations are made to the information without the written consent of the authors. Permission to use this information for purposes other than those described above, or to use the information in any other way, must be requested in writing to either one of the authors. Ethics and Operating Procedures for the Radio Amateur 2 TABLE OF CONTENT Click on the page number to go to that page The Radio Amateur's Code .............................................................................