DOCSLIB.ORG

HF Users Guide

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
HF Users Guide HF-SSB COMMUNICATIONS: THE POWER TO LOCK IN THE WORLD. Globally, HF-SSB has literally changed the world. For a minimal investment, it has allowed millions of people - often in amazingly remote settings, often in emergency conditions - to reliably bounce clear voice and data signals across a state, across a continent, over an ocean, or around the world. Without satellites, relay stations, cellular nets, stadium sized antennas or huge user fees. Just some fine equipment, a smart operator and nature's own ionosphere make this possible. For nearly 25 years, the perfection of HF SSB has been the focus and the life of our company. Our efforts have not gone unnoticed. Today, SGC is a prominent choice of leading corporations, governments, relief agencies, paramilitary organizations, mariners, aviators, explorers, and scientists - all over the world. They trust our engineering and they value our experience. A vital part of our company's strategy centers around new product development, with an emphasis on providing quality equipment which remains rugged, reliable and competitively priced. We are focused on providing customer service of the highest standard. Our commitment is to product training and comprehensive after sales support. Today, SGC is recognized as a world class designer and manufacturer of HF SSB communications products. At SGC we build communications power tools. Next generation HF-SSB radios, antennas, amplifiers and coupler systems that squeeze more range and clarity out of every watt of HF SSB communications power, are the technology and innovations that have helped SGC emerge as a cutting edge player in the expanding world of HF-SSB. Actually, SGC was the first company to perfect and mass produce solid-state HF SSB radios, more than 20 years ago. Today, our focus is an ever higher level of HF SSB refinement and performance. All focused on creating HF SSB voice and data communications systems that are so user friendly and so powerful, they allow every SGC user to easily lock in the world. SGC - HF SSB Power Tools! Pierre B. Goral, President The SGC Building, 13737 S.E. 26th St. Bellevue, Washington 98005 USA © 1997 SGC Inc. P.O. Box 3526, 98009 Tel: (425) 746-6310 Fax: (425) 746-6384 CONTENTS CHAPTER 1 USERS OF LONG-RANGE RADIO EQUIPMENT HF SSB HIGH FREQUENCY SINGLE SIDEBAND ...................................................................7 WHAT IS SSB? ......................................................................................................................................................................8 SSB'S HIGH EFFICIENCY ...................................................................................................................................................9 HF SIGNAL CHARACTERISTICS ....................................................................................................................................10 PROPAGATION ..................................................................................................................................................................12 NATURAL CYCLES THAT AFFECT PROPAGATION ..................................................................................................12 HF INTERFERENCE...........................................................................................................................................................14 SIGNAL PATHS ..................................................................................................................................................................15 OPERATING NECESSITIES ..............................................................................................................................................16 INFORMATION SOURCES................................................................................................................................................17 OPERATING MODES.........................................................................................................................................................19 MORSE CODE.....................................................................................................................................................................19 CW (CONTINUOUS WAVE) .............................................................................................................................................19 VOICE ..................................................................................................................................................................................19 AM (AMPLITUDE MODULATION) .................................................................................................................................19 SSB (SINGLE SIDEBAND) ................................................................................................................................................20 DATA ...................................................................................................................................................................................20 VIDEO ..................................................................................................................................................................................21 HF SSB vs. VHF/UHF RADIO COMMUNICATION SYSTEMS .....................................................................................22 VHF/UHF COMMUNICATIONS .......................................................................................................................................22 COVERAGE.........................................................................................................................................................................23 REPEATERS REQUIRED ON VHF/UHF ..........................................................................................................................24 NO REPEATERS WITH HF SSB........................................................................................................................................25 SECURITY ...........................................................................................................................................................................25 POWER.................................................................................................................................................................................26 INSTALLATION .................................................................................................................................................................26 COST ....................................................................................................................................................................................27 CHAPTER 2 HF TRANSCEIVER SPECIFICATIONS AND FEATURES................................................29 HF TRANSCEIVER SPECIFICATIONS AND FEATURES .............................................................................................30 MODES.................................................................................................................................................................................30 TRANSMITTER/RECEIVER BANDS AND FREQUENCY RANGE..............................................................................30 POWER OUTPUT................................................................................................................................................................30 FREQUENCY STABILITY AND CRYSTAL OVEN........................................................................................................31 1 The SGC Building, 13737 S.E. 26th St. Bellevue, Washington 98005 USA © 1997 SGC Inc. P.O. Box 3526, 98009 Tel: (425) 746-6310 Fax: (425) 746-6384 FREQUENCY STEP ............................................................................................................................................................31 SENSITIVITY ......................................................................................................................................................................31 SELECTIVITY .....................................................................................................................................................................32 OPERATING TEMPERATURE RANGE ...........................................................................................................................32 POWER REQUIREMENTS.................................................................................................................................................32 CURRENT DRAW...............................................................................................................................................................32 DUTY CYCLE .....................................................................................................................................................................33 DISPLAY AND ILLUMINATION......................................................................................................................................33 METERING..........................................................................................................................................................................33 MEMORIES .........................................................................................................................................................................34 SCAN....................................................................................................................................................................................34
Load more

Recommended publications
  • BETS-5 Issue 1 November 1, 1996
    BETS-5 Issue 1 November 1, 1996 Spectrum Management Broadcasting Equipment Technical Standard Technical Standards and Requirements for AM Broadcasting Transmitters Aussi disponible en français - NTMR-5 Purpose This document contains the technical standards and requirements for the issuance of a Technical Acceptance Certificate (TAC) for AM broadcasting transmitters. A certificate issued for equipment classified as type approved or as technically acceptable before the coming into force of these technical standards and requirements is considered to be a valid and subsisting TAC. A Technical Acceptance Certificate is not required for equipment manufactured or imported solely for re-export, prototyping, demonstration, exhibition or testing purposes. i Table of Contents Page 1. General ...............................................................1 2. Testing and Labelling ..................................................1 3. Standard Test Conditions ..............................................2 4. Transmitting Equipment Standards .....................................3 5. Equipment Requirements ..............................................4 6. RF Carrier Performance Standards .................................... 5 6.1 Power Output Rating .................................................5 6.2 Modulation Capability ................................................5 6.3 Carrier Frequency Stability ............................................6 6.4 Carrier Level Shift ...................................................7 6.5 Spurious Emissions
    [Show full text]
  • 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.
    [Show full text]
  • The Market Leader in Over-The-Air Broadcasting Solutions
    Connecting What’s Next The Market Leader in Over-the-Air Broadcasting Solutions GatesAir efficiently leverages broadcast spectrum to maximize performance for multichannel TV and radio services, offering the industry’s broadest portfolio to help broadcasters wirelessly deliver and monetize content. With nearly 100 years in broadcasting, GatesAir’s exclusive focus on the over-the-air market helps broadcasters optimize services today and prepare for future revenue-generating business opportunities. All research, development and innovation is driven from the company’s facilities in Mason, Ohio and supported by the long-standing manufacturing center in Quincy, Illinois. GatesAir’s turnkey solutions are built on three pillars: Content Transport, TV Transmission, and Radio Transmission. GatesAir’s globally renowned Intraplex range comprises the Transport pillar, enabling audio contribution and distribution (along with data) over IP and TDM networks. Intraplex solutions provide value for broadcasters for point-to-point (STL, remote broadcast) and multipoint (single-frequency networks, syndicated distribution) connectivity. GatesAir continues to innovate robust and reliable solutions for traditional RF STL connections that can also accommodate IP traffic. In larger transmitter networks, Simulcasting technology ensures all GatesAir transmitters are time-locked for synchronous, over-the-air content delivery. Powering over-the-air analog and digital radio/TV stations and networks worldwide with the industry’s most operationally efficient transmitters is a longtime measure of success for GatesAir. Groundbreaking innovations in low, medium and high- power transmitters reduce footprint, energy use and more to establish the industry’s lowest total cost of ownership. Support for all digital standards and convergence with mobile networks ensure futureproof systems.
    [Show full text]
  • 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.
    [Show full text]
  • 187 Part 87—Aviation Services
    Federal Communications Commission Pt. 87 the ship aboard which the ship earth determination purposes under the fol- station is to be installed and operated. lowing conditions: (b) A station license for a portable (1) The radio transmitting equipment ship earth station may be issued to the attached to the cable-marker buoy as- owner or operator of portable earth sociated with the ship station must be station equipment proposing to furnish described in the station application; satellite communication services on (2) The call sign used for the trans- board more than one ship or fixed off- mitter operating under the provisions shore platform located in the marine of this section is the call sign of the environment. ship station followed by the letters ``BT'' and the identifying number of [52 FR 27003, July 17, 1987, as amended at 54 the buoy. FR 49995, Dec. 4, 1989] (3) The buoy transmitter must be § 80.1187 Scope of communication. continuously monitored by a licensed radiotelegraph operator on board the Ship earth stations must be used for cable repair ship station; and telecommunications related to the (4) The transmitter must operate business or operation of ships and for under the provisions in § 80.375(b). public correspondence of persons on board. Portable ship earth stations are authorized to meet the business, oper- PART 87ÐAVIATION SERVICES ational and public correspondence tele- communication needs of fixed offshore Subpart AÐGeneral Information platforms located in the marine envi- Sec. ronment as well as ships. The types of 87.1 Basis and purpose. emission are determined by the 87.3 Other applicable rule parts.
    [Show full text]
  • Section-A: VHF-DSC Equipment & Operation;
    FCC – Element-9 GMDSS Maintainer License: September 2012 Section-A: VHF-DSC Equipment & Operation: Key Topic-1: Frequency and Bandwidth: 1A1 What are the correct VHF Channels and Frequencies for Calling/Distress, DSC and bridge-to-bridge operations? A. Ch-16, 156.800 MHz, Ch-70, 156.525 MHz and Ch-13, 156.650 MHz. B. Ch-06, 156.300 MHz, Ch-16, 156.800 MHz and Ch-13, 156.650 MHz. C. Ch-08, 156.400 MHz, Ch-70, 156.525 MHz and Ch-16, 156.800 MHz. D. Ch-06, 156.300 MHz, Ch-12, 156.600 MHz and Ch-13, 156.650 MHz. 1A2 What is the frequency separation between Transmit and Receive frequencies on a duplex channel? A. 2.8 MHz B. 4.6 MHz C. 6.4 MHz D. 10.7 MHz 1A3 What is the assigned channel spacing for VHF channels? A. 10 kHz B. 15 kHz C. 25 kHz D. 50 kHz 1A4 What is the allowed frequency tolerance for the DSC carrier frequencies? A. 10 Hz B. 20 Hz C. 5 ppm D. 10 ppm 1A5 Using a frequency counter with an accuracy of 2 ppm — which of the following are within legal tolerance for the frequencies of 156.800 MHz and 156.525 MHz? A. 156,798.758 kHz and 156.526.243 kHz. B. 156,798.735 kHz and 156,526.258 kHz. C. 156,801.567 kHz and 156,526.476 kHz. D. 156,798.635 kHz and 156,523.352 kHz 1A6 Using a frequency counter with an accuracy of 5 ppm — which of the following are within legal tolerance for the frequencies of 156.875 MHz and 157.200? A.
    [Show full text]
  • Proposed Changes to the Morse Code (CW) ) RM-10784, Proficiency Requirement for Operator ) RM-10785, Access to the Amateur Radio Bands ) RM-10786, and Below 30 Mhz
    Before the Federal Communications Commission Washington, DC 20554 ) In the Matter of ) RM-10781, ) RM-10782, The Amateur Radio Service: ) RM-10783, Proposed Changes to the Morse Code (CW) ) RM-10784, Proficiency Requirement for Operator ) RM-10785, Access to the Amateur Radio Bands ) RM-10786, and Below 30 MHz. ) RM-10787 ) COMMENTS TO PETITIONS FOR RULEMAKING GREETINGS: INTRODUCTION As all parties concerned are no doubt aware, the Morse code telegraphy proficiency requirement for Amateur Radio Service operators has been eliminated from the International Telecommunications Union (ITU) Radio Regulations. This change was effected on 5 July 2003 at the World Radiocommunication Conference 2003 (WRC-03), Geneva, by revising Article 25.5 §3 1 of these regulations. The revised Article 25.5 now gives the administrations of individual member nations, such as the US Federal Communications Commission (FCC or Commission), discretion to “…determine whether or not a person seeking a license to operate an amateur station shall demonstrate the ability to send and receive texts in Morse code signals.” Previously, knowledge of or demonstration of Morse code proficiency had been required by ITU regulation for amateur radio operation on all frequencies below 30 MHz. These 1 Dixon Comments frequencies include all of the amateur High Frequency (HF or shortwave) bands, and the one amateur Medium Frequency (MF or medium-wave) band. Note: For purposes of this document, references henceforth to “HF” or “High Frequency” or “shortwave” shall be deemed to include MF or Medium Frequency or medium-wave, as well. This is in fact colloquial nomenclature among amateur radio operators. The various petitions for rulemaking captioned above seek various degrees of relief from the somewhat burdensome requirement for US-licensed Amateur Radio Service operators (amateurs), presently needed to access the very popular and preferential international High Frequency amateur radio bands.
    [Show full text]
  • Sailor System 5000 Mf/Hf 150W
    USER MANUAL SAILOR SYSTEM 5000 MF/HF 150W Introduction Congratulations on your new SAILOR CU5110 MF/HF maritime radio telephone with built-in DSC (Digital Selective Calling) system, fulfilling the highest international standards for marine MF/HF communication and safety procedures. The transceiver is born with a 2187,5kHz DSC watch receiver forming an ideal system for MF installations. If connected to a GPS or other maritime navigation system it can automatically include the true UTC time and your position in its DSC distress messages. This SAILOR marine equipment is a part of the modular system 5000 which also includes a HF single sideband radiotelephone. SAILOR marine equipment is specially designed for the extremely rugged conditions on bord a ship, based on more than 50 years’ experience with all kinds of boats, from small pleasure crafts, over fishing boats working under all climatic conditions, to the biggest ships. SAILOR ® is one of the worlds leading manufacturers of maritime radiocommunication equipment - a position which has been maintained by means of constant and extensive product development. We have a worldwide network of dealers with general agencies in more than 80 countries. All our dealers are specially trained to service all your SAILOR ® products. About this manual This manual is for the daily user of the system. Additionally, it includes a section on the installation procedures, and - on page iii - standard distress procedures. We highly recom- mend you to read the manual before you start using the equipment. Notice: There may be some minor differences in the graphic layout of the manual compared to the physical device.
    [Show full text]
  • SBE Comments to FINAL AM Improvement Docket
    Before the FEDERAL COMMUNICATIONS COMMISSION Washington, DC 20554 In the Matter of ) ) Revitalization of the AM Radio Service ) MB Docket No. 13-153 To: The Commission COMMENTS OF THE SOCIETY OF BROADCAST ENGINEERS, INCORPORATED 1. The Society of Broadcast Engineers, Incorporated (“SBE”)1 respectfully submits its Comments in response to portions of the Commission’s Notice of Proposed Rulemaking, 13-139, 28 FCC Rcd. 15221, released October 31, 2013 in the above-captioned proceeding (the “Notice”).2 The Notice proposes “to introduce a number of possible improvements to the … AM… radio service and the rules pertaining to AM broadcasting.” The Commission also seeks “to revitalize further the AM band by identifying ways to enhance AM broadcast quality and proposing changes to our technical rules that would enable AM stations to improve their service.” The Commission proposes to “help AM broadcasters better serve the public, thereby advancing the Commission’s fundamental goals of localism, competition, and diversity in broadcast media.” SBE applauds this effort and offers the following comments on some of the technical issues raised in this proceeding. Specifically, SBE offers its comments on four issues that will provide both immediate and long-term relief to AM broadcast licensees: 1 SBE is the national association of broadcast engineers and technical communications professionals, with more than 5,000 members worldwide. 2 The Notice of Proposed Rulemaking was published in the Federal Register November 20, 2013. See, 78 Fed. Reg. 69629. 1
    [Show full text]
  • Uwìälu @Aiswww@
    Nov. 27, 1951 s. s. H|l_|_v 2,576,115 ARRANCEMENT ECR TRANSMIITINC ELECTRIC sICNALs CCCURYINC A wIDE FREQUENCY BAND CvER NARRow BAND CIRCUITS Filed Feb. 4, 1948 Nîä,_ , Emmaüzzwru www@ @waisuwìälu Patented Nov. 27, 1951 ' 2,576,115 UNITED STATES A,lnßxrlszN'r oFFlcE 2,516,115 ARRANGEMENT FOR TRANSMITTING ELEC TRIC SIGNALS OCCUPYING A WIDE FRE QUENCY BAND OVERI NARROW BAND CIR CUITS i Stuart Seymour Hill, London, England, assigner to International Standard Electric Corpora tion, New York, N. Y., a corporation of Dela Application February 4, 1948, Serial No. 6,316 In Great Britain February 7, 1947 13 Claims.` (Cl. 17H4) 2 The present invention relates to electric signal of one or more sections to the frequency range. transmission systems of the kind in which signals passed by the corresponding channel and meansl occupying a relative wide frequency band are for transmitting the frequency shifted sections. transmitted over two or more circuits each of over the respective channels, characterised in­­ which is capable of transmitting only a relative “ this, that the frequency shifting means in thev ly narrow frequency band. case of at least one section comprises two succes The invention has its principal application to sive frequency changes, one of which employs a broadcasting circuits. fixed carrier frequency and the other a carrier It is frequently necessary to send broadcast ma frequency which is adjusted to a value deter terial to the studios by telephone line. Some 10 mined by the cut-off frequency of the correspond times special broadcast channels designed for a ing channel.
    [Show full text]
  • Portable Shortwave Receivers
    Portable Shortwave Receivers ● Longwave, AM, FM and Shortwave ELITE SATELLIT ● VHF Air Band ● HD Radio Reception ● RDS Display ● Superior Sensitivity and Selectivity ● Dual Conversion Design ● Huge 5.7 Inch Backlit Display ● Drift-free Digital Phase Lock Loop ● Direct Frequency and Band Entry ● Single Sideband Synchronous Detector ● Selectable Bandwidths ● High Dynamic Range ● Dual Programmable Clocks ● Dual Event Programmable Timers ● Stereo Line Level Input ● Stereo Line Level Output ● Earphone Jack ● Separate Bass and Treble Controls ● Adjustable AGC: Fast or Slow ● Telescopic Antenna AM/FM/SW ● Battery (4xD) or Included AC Adapter ● Scan and Search ● 1700 Total Memories (500 alphanumeric) ● Deluxe Carry Bag The Elite Satellit is simply the finest full-sized portable in the world. The Elite Satellit is an elegant confluence of performance, features and capabilities. The look, feel and finish of this radio is superb. The solid, quality feel is second to none. The digitally synthesized, dual conversion shortwave tuner covers all long wave, mediums wave (AM) and shortwave frequencies. HD Radio improves audio fidelity and adds additional programming without a subscription fee. Adjacent frequency interference can be minimized or eliminated with a choice of three bandwidths [7.0, 4.0, 2.5 kHz]. The sideband selectable Synchronous AM Detector further minimizes adjacent frequency interference and reduces fading distortion of AM signals. IF Passband Tuning is yet another advanced feature that functions in AM and SSB modes to reject interference. AGC is selectable at fast or slow. High dynamic range permits the detection of weak signals in the presence of strong signals. All this coupled with great sensitivity will bring in stations from every part of the globe.
    [Show full text]
  • Short Wave Radio
    Short Wave Radio A Working Electronic Sculpture Honoring the History of Radio Please note: This radio picks up short wave stations, but for your best satisfaction it will require a little time and attention, both to learn how to operate it and to appreciate the principles and history that it embodies. You’ll find bare-bones instructions on this page and more details inside the notebook. To turn the radio on, rotate the volume control clockwise until you hear a click, then set its dial to 3 or 4. If the radio was not already turned on, you’ll have to wait about 30 seconds for its vacuum tubes to warm up. •Put on the headphones. •Set the radio’s other controls as follows: •RF Gain: Fully clockwise. •Preselector: 1 •Tuning: 20 •Fine Tuning: 5.0 (This works like a clock, only with ten “hours” instead of 12) •Regeneration: 7 (Or advance slowly clockwise from zero until just after the point you hear a louder hiss in the headphones.) •Volume: Set to a comfortable level, usually about 4. Now, slowly adjust the TUNING control back and forth looking for squeals that indicate signals. (The shortwave broadcast band with 31 meter wavelength is located between about 10 and 30 on the dial.) You’ll should find a few unless ionospheric conditions are particularly poor on this day. Leave the TUNING control set on a loud squeal. Then slowly adjust the FINE TUNING to “zero beat.” (You’ll notice as you move the dial across a signal, it starts with a high-pitched note, moving down to a low-pitched or zero note, then back up to high pitch again.
    [Show full text]