Amateur Television - We Have It All Est

Total Page:16

File Type:pdf, Size:1020Kb

Amateur Television - We Have It All Est P. C. Electronics 2522 Paxson Lane Arcadia CA 91007-8537 USA ©2010 Tel: 1-626-447-4565 m-th 8am-5:30pm pst (UTC - 8) Tom (W6ORG) & Mary Ann (WB6YSS) Web site: www.hamtv.com Email: ATVinfo @ hamtv.com Amateur Television - We Have It All Est. 1965 Get the ATV Bug ! See our New for 2010 web page describing the 5W 70cm Transmitter. ATV is no more difficult or different than any voice mode; additionally you plug in your video camera or camcorder to the ATV transmitter, and downconverter to your TV set to receive the picture. New digital TV’s will have analog cable tuners in them until at least 2012. That’s it - you’re seeing as well as talking to other hams live and in color! No other radios or interface devices needed. With ATV you can show the shack, family, home video tapes, zoom in and describe projects, show computer graphics and programs from the home station. Put ATV in high altitude balloons, rockets or R/C vehicles. Go portable or mobile, do public service events, RACES, AREC, CAP, even transmit the radio club Show the family on ATV meetings to those hams that can’t make it in person live or by tape. See our web site for all kinds of fun application notes and info on ATV. Emergency Operations Centers (EOC) or mobile command posts can really benefit by having an ATV eye at the incident site. Video can give incident commanders a better impression of what is needed to efficiently allocate resources. With ATV you can run full duplex audio by transmitting from the camera location and the receive end can transmit back at the same time on two meters. See our Emergency Communications application note on our web site. Point to Point ATV system for Public Service events. Forest fire seen at an EOC on the other side of the 5L-70cm mountain via ATV. 5W pep 4 >25 miles line of sight channel A/V DX with just 5 Watts Receive downconverter ATV XMTR from the Videolynx to analog cable TV ch3 pg In this Catalogue: VM-70X TX Module....$199 VM-70X ATV TX using 2-3 70cm gear - transmitter the 31” boom OAL 5L- downconverter, antennas 70cm Antennas to the Color Cameras TVC-4S downcon- 4 33, 23 and 13cm gear verter and TV set. 5 Videolynx 50mw to 5W See our app note & page 2 for 70cm ATV transmitter packaging as above - about $360 5L-70cm Antenna...$80 TVC-4S Downconverter..$149 modules and gear for Need greater DX? Add a Downeast 7025PA (35W), Mirage D26N (50W) or R/C,rockets and balloons Mirage D100-ATVN (90W) linear amp. See our ATV DX graph on our web site 6 ATV repeater gear for expected DX mileage given power and antenna gains. 7 Video Overlay boards - Need A/V output to drive a video monitor or VCR instead of a TV? Add our Intuitive Circuits Rch3 channel 3 receiver to your downconverter -page 3. 8 70cm ATV test generator Need short range (1/4 to 1/2 mile) for a wireless camera to the Comm Van? Gunnplexer modulator Check out the Videolynx 434 or Z70A 50-100 mW small ATV transmitters - page Sales policies 8, and cameras - page 2. 9 Order Form page 1 5/2010 P. C. Electronics 2522 Paxson Lane Arcadia CA 91007-8537 USA ©2010 Tel: 1-626-447-4565 m-th 8am-5:30pm pst (UTC - 8) Tom (W6ORG) & Mary Ann (WB6YSS) Web site: www.hamtv.com Email: ATVinfo @ hamtv.com COLOR CAMERAS For ATV CB35 Low Cost, High Resolution 480 Line Color Camera..............$189 This color camera is perfect for the ham shack, but also good for mobile or portable with our ATV transmitters with it’s 480 lines of resolution using a 1/3” Sony CCD. 768(H) x 494(V) picture elements, .1 lux, AGC built in, >48 dB S/ N ratio, switchable back light compensation, automatic white balance, automatic electronic shutter and optional auto iris control. 6mm adjustable focus CS mount lens supplied as well as a 12Vdc @ 300 ma / 110 VAC wall plug power supply (camera draws 150 ma) or run on external 12-13.8 Vdc. NTSC 1 volt CB-35 Color Camera 4.1x1.8x2.25”, 13oz. peak to peak composite video out BNC connector. LB1000 Mini 420 line Color Camera with sound.................................$79 LB-1000 CMOS 3 lux, line audio output with built in mic. Shielded case to keep RF out 3oz, 1.5” square but weighs 3 oz., size 1.5’ sq. Great for R/C, rockets and balloon ATV. The RCA A/V jacks included lens will focus from infinity down to 1” from the object. Runs on 8 to 14 Vdc @ 50 mA and a wall plug 12V regulated power supply is included. PACKAGE YOUR OWN 5 WATT 70CM ATV TRANSMITTER Download our app note with parts list (est. total cost $360), sources and drill drawings so you can package the VM-70X, FMA5-G and TR-1b boards in a Hammond 1590D Diecast Aluminum box. Makes a nice portable for 15 miles line of sight for public service work and >70 at home depending on antennas. Videolynx VM-70X 5 Watt 70cm 4 channel ATV TX Module......................$199 Videolynx RF output adjustable from 0 to over 5 Watts PEP on your digiswitch selected frequency - VM-70X 426.25, 427.25, 434.0 or 439.25 MHz. Comes built and tested. Draws typ. 1.5 A @ 13.8 ATV Vdc when set to 5W out, DC input range from +11 to 14.0 Vdc. Line audio and video input Transmitter solder pads. SMA RF out jack. For R/C, robots, rockets and balloons, the module can run module set to 1/2 Watt without adding a fan or heatsink. App note included for adding a computer 2.35”x2.8”x .75” fan or packaging in a Hammond 1590D box for home and portable use. PAL add $50. 2.5 oz. FMA5-G SOUND SUBCARRIER GENERATOR BOARD...................................$59 FMA5-G Sound Designed to add broadcast standard sound with your picture. However, when opionally Subcarrier used with the VM-70X the temperature stablized 4.5 MHz VCO is disabled and only the Generator mic and line audio amp plus low distorion AGC deviation limiter is used. Adjustalbe deviation 3"x1.5" 20-50 kHz with AGC and LED over deviation indicator. Accepts a Low Z mic (100-600 Ohms)and line level audio from VCRs, camera mics, computers, etc. Up to 1 v pk-pk drive to the TXA5-70 or TXA5-RCs exciter modulators. Req. 11 to 14 Vdc @ 20ma. Special set freq. for FM (GVM-1) or PAL up to 6.8 MHz add $10. TR-1b 70cm Antenna & DC power T/R RELAY BOARD................................$29 Tansmit/Receive RELAY T/R Antenna switching ≤25 Watt 70cm ATV systems. Negligible insertion loss, 60dB TR-1b 2 x 1.8" isolation. Mounts on flange type UG58 N chassis jack ($4). 1A contact relay for switching + power to ..the VM-70X, FMA5 and downconverter. Relay for switching camera video in receive from video monitor to transmitter. Use on 33 & 23cm with trimmer cap removed. ACCESSORIES: 2.0x1.8", 13.8Vdc @ 120 ma. SMAp-10” cable connects from VM-70X RF out to TR-1b..........$6 SMAp/Nj SMA plug to type N jack adaptor....................................$6 UG58 type N female flange mount chassis jack, teflon/silver......$4 SMAp/UHFj SMA plug to SO239 UHF jack adaptor.......................$6 UG21 type N male plug for 9913 and RG8 size coax, teflon/silver.$6 Fp/Nj type N jack to F plug for cable ready TV to ham antenna...$3 Page 2 5/2010 P. C. Electronics 2522 Paxson Lane Arcadia CA 91007-8537 USA ©2010 Tel: (626) 447-4565 m-th 8am-5:30pm pst (UTC - 8) Tom (W6ORG) & Mary Ann (WB6YSS) Web site: www.hamtv.com Email: ATVinfo @ hamtv.com 420-450 MHz ATV DOWNCONVERTER GET STARTED WITH ONE OF THESE TO SEE THE ACTION! ATV DOWNCONVERTER, TVC-4S with AC supply........................$149 This ready to go box downconverts the standard 5 420-450 MHz ham band channels - crystal locked and switch selected 421.25, 426.25, 427.25, 434.0 and 439.25 MHz - down to TV channel 3 or 4 so your TV TVC-4S receiver can see and hear AM ATV just like broadcast TV. Contains the ATV Downconverter very sensitive TVCX-4S board which uses a low noise HJ-Fet preamp Plug-in and Play stage and GaAsFet mixer in a rugged black die cast 4.7x3.7x2.1 inch 4.7 x 3.7 x 2.1” aluminum box ready to go with 120 Vdc 60 Hz to 12Vdc 300 ma. wall plug power supply. 50 Ohm N connector antenna input and 75 Ohm F output to TV. Special input or output frequencies add $25 902-928 and 1240-1300 MHz Band Downconverters Rear view, ATV DOWNCONVERTER TVC-9S with AC supply......................$159 Connects Same configuration as the TVC-4S but made to cover 910.25, 911.25, between 913.25, 919.25, 923.25 MHz to ch 3 or 4 your TV set and 70cm ATV DOWNCONVERTER TVC-12S with AC supply....................$159 antenna. Same configuration as the TVC-4S but made to cover 1241.25, 1253.25, 1265.25, 1277.25, 1289.25 to ch 7 or 8. Special Ch 3 output add $25. CHANNEL 3 RECEIVER, Rch3 with AC supply.................................$89 Rch3 TV Receiver Allows you to connect your downconverter to this unit to get audio and 5 x 3.25 x 1.5” line audio outputs if you prefer to drive a monitor or recorder than a TV set.
Recommended publications
  • Amateur Radio PUGET SOUND
    2020 Free Amateur Radio Special Events & Information Guide PUGET SOUND (AND SURROUNDING AREA) K7LED 146.82 MHz & 224.12 MHz [email protected] www.mikeandkey.org Preparing For Public Service Communications 1. Dress in layers of clothing, in case the weather changes. 2. Bring your medication, sunscreen, sunglasses, water bottle, etc. 3. Bring extra batteries for your radio. 4. Report your arrival in advance on the talk-in frequency, so you can be directed to convenient parking. 5. Bring a pen and small note pad to jot down information. 6. Speaker mikes and headsets are very helpful. Don’t use vox, as it can pick up crowd noise and tie up the frequency. 7. If you have an extra radio, bring it along in case another volunteer has none. 8. You’re part of a team, Net Control will answer your questions. 9. Have fun and feel good about helping your community. The Amateur’s Code The Radio Amateur is: CONSIDERATE...never knowingly operates in such a way as to lessen the pleasure of others. LOYAL...offers loyalty, encouragement and support to other amateurs, local clubs, and the American Radio Relay League, through which Amateur Radio in the United States is represented nationally and internationally. PROGRESSIVE000ykvj"mpqyngfig"cdtgcuv"qh"uekgpeg."c"ygnn/dwknv"cpf"ghÝekgpv" station and operation above reproach. FRIENDLY...slow and patient operating when requested; friendly advice and counsel to the beginner; kindly assistance, cooperation and consideration for the interests of others. These are the hallmarks of the amateur spirit. BALANCED...radio is an avocation, never interfering with duties owed to fam- ily, job, school or community.
    [Show full text]
  • 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.
    [Show full text]
  • Amateur Television Handbook Vol 2
    AMATEUR TELEVISION HANVDOLB2OOK TREVOR BROWN “w “-3.... _r -. _B___RITISH AMATEUR TELEVISIONCLUB 9H|LLCREST, 33:22.. a. HANTS, , R626 lwooo 6J8 oouom1 A VHF/UHF COMMUNICATION rmmmnl JOMITHE- S. P. G. '3 (without your size '10'::.....! You could be a sync pulse generator with a W 8: D product. Our runny years of experience in the commercial communication sector Imm- benefited the amateur market with an extensive range of r01 inm- well designed products. These are available in kit or assemhlwl module form and a limited number as boxed ready to go units. For your TV requirements whether AM or FM contact us. Full (II-Mill. of our complete range will be forwarded on receipt of a lar‘gv :‘.Al-.. We will also be very pleased to quote on any commercial enquiry be it for TV or telemetry. Please telephone for assistance. Wood and Douglas are an independant British partnership who hnw served the UK amateur market for seven years. Why not sumuu I. II|I\ £?! 07356 5324 ACKNOWLEDGEMENTS flhe british Amateui television LlLL expresses its gratituce to the Lollowing companies, Leeleties anc incivicuals who Lave ptovroeo material and assistance Let this publication. k.b.G.B. Loughty :tLeet, Lonocn. E.b.b.b. microwave Committee Raoxo Bet. karis. A.b.A.k. bermany. masco Electronics, Lancaster. Mrs. Eaullne N. brown miss Latherine A. white L. Lalla thzec L.c. Lixcn baLbh C.L. bllLOtt samba A. Emmerson GBPlh P. Llekeootough GBPXL G. bhirville ubVZV EDITED BY TREVOR BROWN, G8CJS. LAYOUT BY PETER DELANEY, GBKZG. DRAUGHTED BY CHRIS SHARPE. OCTOBER 1982 CONTENTS CHAPTER ONE eLow SCAN TELEVISION PAGE CHARACTER GENERATOR l SYNC PULSE AND PATTERN GENERATOR 8 CHAPTER TWO TELETYPE PIGGY BACK MEMORY ll ASCII KEY bOARDS 19 CHARACTER COLOURIZER 24 SIMPLE SYNC PULSE GENERATOR 28 CHAPTER THREE VIDEO EFFECTS VISION SWITCHER 31 VISION MIXING 38 COLOUR SYNThESIZER 45 CHAPTER FOUR 70¢ms TELEVISION V.S.B.
    [Show full text]
  • The Radio Amateurs Microwave Communications Handbook.Pdf
    1594 THE RADIO AMATEUR'S COM ' · CA 10 S HANDBOOK DAVE INGRAM, K4TWJ THE RADIO AMATEUR'S - MICROWAVE COMMUNICATIONS · HANDBOOK DAVE INGRAM, K4TWJ ITABI TAB BOOKS Inc. Blue Ridge Summit, PA 17214 Other TAB Books by the Author No. 1120 OSCAR: The Ham Radio Satellites No. 1258 Electronics Projects for Hams, SWLs, CSers & Radio Ex­ perimenters No. 1259 Secrets of Ham Radio DXing No. 1474 Video Electronics Technology FIRST EDITION FIRST PRINTING Copyright © 1985 by TAB BOOKS Inc. Printed in the United States of America Reproduction or publication of the content in any manner, without express permission of the publisher, is prohibited. No liability is assumed with respect to the use of the information herein. Library of Congress Cataloging in Publication Data Ingram, Dave. The radio amateur's microwave communications handbook. Includes index. 1. Microwave communication systems-Amateurs' manuals. I. Title. TK9957.154 1985 621.38'0413 85-22184 ISBN 0-8306-0194-5 ISBN 0-8306-0594-0 (pbk.) Contents Acknowledgments v Introduction vi 1 The Amateur 's Microwave Spectrum 1 The Early Days and Gear for Microwaves- The Microwave Spectrum- Microwavesand EME-Microwavesand the Am- ateur Satellite Program 2 Microwave Electronic Theory 17 Electronic Techniques for hf/vhf Ranges- Electronic Tech- niques for Microwaves-Klystron Operation-Magnetron Operation-Gunn Diode Theory 3 Popular Microwave Bands 29 Circuit and Antennas for the 13-cm Band-Designs for 13-cm Equipment 4 Communications Equipment for 1.2 GHz 42 23-cm Band Plan-Available Equipment- 23-cm OX 5
    [Show full text]
  • Petition for Reconsideration Arrl, the National Association for Amateur Radio
    Before the FEDERAL COMMUNICATIONS COMMISSION Washington, D. C. 20554 In the Matter of ) ) Facilitating Shared Use in the 3.1-3.55 GHz Band ) WT Docket No. 19-348 To: The Commission PETITION FOR RECONSIDERATION ARRL, THE NATIONAL ASSOCIATION FOR AMATEUR RADIO ARRL, the national association for Amateur Radio, also known as the American Radio Relay League, Incorporated (“ARRL”), pursuant to Section 1.106 of the Commission’s rules,1 files this Petition for Reconsideration (“Petition”) of the Report and Order adopted by the Commission in the above-captioned proceeding (“Report and Order”).2 In this Petition, the ARRL requests that the Commission reconsider its Order removing the secondary allocation for the Amateur service at 3300-3500 MHz and requiring that Amateur operations in the 3450-3500 MHz band cease “on a date consistent with the first possible grant of flexible use authorizations to new users.”3 The Amateur services in this band long have been operated on a secondary allocation status functionally similar to the de facto secondary status of Part 5 experimental licenses whose continued operation was (correctly) approved in this same proceeding. Continued 1 47 C.F.R. § 1.106. 2 Facilitating Shared Use in the 3.1-3.55 GHz Band, Report and Order, WT Docket No. 19-348, FCC 20- 138, 85 Fed.Reg. 64062 (publ. Oct. 9, 2020). 3 Id. at 20-138, para. 26. operation of amateur stations similarly should be permitted in the vacant portions of this spectrum that otherwise will go unused, subject to the same secondary status and requirement to cease operation should any interference actually occur or reasonably be predicted to occur.
    [Show full text]
  • Weak Signal Dxing on 222
    iJOCKf'r - • 'j l-/LE r'1p yO" Ft':O I) ... vv . t1IGINAL .U .: ;J lfl'l·' Before the " ,17) FEDERAL COMMUNICATIONS COMMISSION Washington, D.C. 20554 In the Matter of ) ) Amendment of the Amateur Service ) Rilles Concerning the 222-225 MHz ) and 1240-1300 MHz Frequency Bands ) TO: The Commission COMMENTS OF WAYNE OVERBECK, N6NB1 The following comments are offered in support of the Commission's Notice of Proposed Rule Making in the above captioned matter. While I concur fully with the Comments being filed in this proceeding by the Western States VHF-Microwave Society (WSVMS), of which I am a member, I am also filing my own comments for two reasons: 1) To discuss some of the policy implications of this proceeding in light of the dominant role ofwide-bandwidth FM repeaters in the VHF-UHF amateur bands and the technological advances in communications now occurring; and 2) To place in the record a paper I published last year that summarizes the 60-year history of amateur experimentation in the 1.25 meter band, documenting significant contri- butions to the state of the art by radio amateurs. My point, above all, is that experimentation and innovation by radio amateurs are still important--and that such activities cannot continue if the Commission abandons its 1 I have been a licensed radio amateur since 1957 and active on the 222 MHz band since the 1960s. Although I served four terms as an elected vice director of the American Radio Relay League (ARRL), I hold no ARRL office now; the opinions expressed here do not necessarily reflect those ofARRL or any other organization.
    [Show full text]
  • 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 .............................................................................
    [Show full text]
  • Planning a Digital-ATV Station for DVB-S
    Planning a Digital-ATV Station for DVB-S Ken Konechy – W6HHC Orange County Amateur Radio Club Orange County, CA [email protected] Robbie Robinson – KB6CJZ Orange County Amateur Radio Club Orange County, CA [email protected] Abstract Most ham radio Amateur Television (ATV) stations and repeaters in use today still utilize analog technology. The purpose of this paper is to explain Digital-ATV (DATV) to other hams, with the hope that it might make the transition from analog-ATV to Digital-ATV a little more straightforward. The paper begins with a review and comparison of various commercial DTV standards that are in use around the world. A top-down design methodology session is then conducted to sort through a number of design alternatives to plan a DATV station. The planning session chooses the DVB-S standard for DATV over the competing United States- based ATSC standard. The paper concludes by describing the Forward-Error-Correction factors and Symbol-Rate factors that determine the RF bandwidth for a DVB-S DATV station. Key Words DATV Digital-ATV DVB-S ATSC QPSK 8-VSB FEC Symbol-Rates 1 - Introduction to DATV For several years, Robbie and I have listened to some interesting ham conversations about “...we hams should change analog ATV over to Digital-ATV (aka DATV) to keep up with technology...”. While the goal seemed simple, the topic was very complex and not easy to grasp. We found that there really was no simple place to go...like a “one-stop-shop” for DATV information, especially here in the United States where ATSC is a standard to be carefully considered.
    [Show full text]
  • REPORT ITU-R M.2478-0 – Spectrum Needs for the Amateur Service in The
    Report ITU-R M.2478-0 (09/2019) Spectrum needs for the amateur service in the frequency band 50-54 MHz in Region 1 and sharing with mobile, fixed, radiolocation and broadcasting services M Series Mobile, radiodetermination, amateur and related satellite services ii Rep. ITU-R M.2478-0 Foreword 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. Policy on Intellectual Property Right (IPR) ITU-R policy on IPR is described in the Common Patent Policy for ITU-T/ITU-R/ISO/IEC referenced in Resolution ITU- R 1. Forms to be used for the submission of patent statements and licensing declarations by patent holders are available from http://www.itu.int/ITU-R/go/patents/en where the Guidelines for Implementation of the Common Patent Policy for ITU-T/ITU-R/ISO/IEC and the ITU-R patent information database can also be found. Series of ITU-R Reports (Also available online at http://www.itu.int/publ/R-REP/en) Series Title BO Satellite delivery BR Recording for production, archival and play-out; film for television BS Broadcasting service (sound) BT Broadcasting service (television) F Fixed service M Mobile, radiodetermination, amateur and related satellite services P Radiowave propagation RA Radio astronomy RS Remote sensing systems S Fixed-satellite service SA Space applications and meteorology SF Frequency sharing and coordination between fixed-satellite and fixed service systems SM Spectrum management Note: This ITU-R Report was approved in English by the Study Group under the procedure detailed in Resolution ITU-R 1.
    [Show full text]
  • Amateur Television
    AmateurAmateur TelevisionTelevision GlossaryGlossary u Frame • Single Picture u Field • ½ Picture u Interlaced • Draws ½ Picture then draws the second half GlossaryGlossary u Interlace BroadcastBroadcast TVTV u Bandwidth • 6MHz BroadcastBroadcast TVTV u 525 Lines per frame • 262 ½ Lines per field u 30 Frames per second • Full motion video AmateurAmateur TelevisionTelevision u Types of ATV • SSTV u Slow Scan Television • FSTV u Fast Scan Television SlowSlow ScanScan TVTV u Single frame of video • Scan convert a frame to audio then transmit the audio • Recent happenings u Web Cams and Video capture cheap u Use sound card to generate tones u Rig Blaster, BuxComm interfaces u Freeware/Shareware software FastFast ScanScan TVTV u Usable Frequencies • 70cm u First ham band that is wide enough to allow full 6MHz bandwidth u Standard Frequencies • 421.25 MHz • 426.25 MHz • 427.25 MHz • 434.00 MHz • 439.25 MHz FastFast ScanScan TVTV u Usable Frequencies • 33cm 902 – 928 MHz • 23cm 1240-1300 MHz • 13cm 2390 – 2450 MHz 70cm70cm FSFS ATVATV u Station Requirements • Receive u Television Receiver • Channel 57 (421.25MHz) • Channel 60 (439.25MHz) u Down Converter Tuner 70cm70cm FSFS ATVATV u Station Requirements • Transmit u Video Source • Camcorder • Camera u Audio Source • Microphone u Transmitter • Off the Shelf • Commercial Equipment • Home Brew 70cm70cm FSFS ATVATV u Station Requirements • Antenna u Horizontal Polarization u Operator Requirements • Technician Class 70cm70cm FSFS ATVATV u Off the Shelf Equipment • PC Electronics u TC70-20S • Synthesized
    [Show full text]
  • How to Receive Amateur Digital, DVB-T Television Signals Jim Andrews, KH6HTV
    AN-21b Receive DTV.doc (2/28/2016) p. 1 of 9 Application Note AN-21b AN-21 issued January, 2015 - deleted Major "B" Revision Feb, 2016 How to Receive Amateur Digital, DVB-T Television Signals Jim Andrews, KH6HTV The fundamental question is "How can I receive amateur DTV signals ?" The commercial TV broadcast industry began a transition from analog TV to digital TV (DTV) starting in the mid 90s. Several different, DTV systems were developed for different applications, such as over the air terrestrial broadcast, satellite broadcast and cable distribution. Each system had it's unique propagation characteristics and as a result, it's coding implementation. For amateur DTV, the system adopted should be optimized for terrestrial propagation where "multi-path" is always an issue. TV signals received from satellites, or directly over a CATV network are not subject to multi-path. Thus such DTV systems are less suitable for amateur DTV. The DTV system adopted by Boulder, Colorado and other Colorado Front Range radio amateurs is called DVB-T, or Digital Video Broadcast - Terrestrial. It is NOT the ATSC (8-VSB) system used in the USA for commercial TV broadcast over the air, nor for transmission in cable TV (CATV). It is the system developed in Europe and used by most of the rest of the world for broadcast DTV. Thus, in the USA, you can NOT use directly your home TV receiver to receive DVB-T. The reasons, we have adopted a European standard rather than an American standard are primarily based upon cost and availability of transmitting equipment and also on the superior multi-path performance of DVB-T over ATSC.
    [Show full text]
  • Fsithista.Pdf
    BC Forest Service - Centenary Society Page 1 of 2 Printer Friendly Home Search Membership Contact Us Home Our People Technological Advances Our Places Radio Reports Our Stories Excerpted from the Forest Service Newsletter, Dec. 1956 (No. 121) p.12 Timeline Technological Advances Radio communication, which has long been the medium for the acceleration and co- Photo Gallery ordination of all phases of Forestry, is in the process of a complete change-over from the old to the new method of transmission and system planning. This Calendar of Events conversion made measurable progress in 1955, and field work carried out by the Links & Resources Radio Section in 1956 has paved the way for significant improvements planned to Promotional Materials start in 1957 and to continue for at least 5 years. Site Map The fact is that the medium frequency channels between 2 and 3.5 megacycles, which have served us for twenty years, have outworn their usefulness in the face of New Technology modern expansion in power lines and many other noise-creating electrical devices. Camera Booms National and international crowding of stations on these bands has added to the already near-impossible electrical noise level, to produce a transmitting medium The original MoF which frequently prevents the operation of even our headquarters stations. Inventory Branch camera boom was ... During the past year, Kamloops district network virtually went off the air for three read more > weeks due to a newly-erected power line. Many Nelson Ranger Stations can no longer use radio due to the radiation of high-level transmission lines and, during the 1956 fires season, Prince George District was crowded off the air by a multiplicity of Forest Service radio stations working on channels to either side of the District Featured Items frequency.
    [Show full text]