An Analysis of the HF Antennas at 33 BBHR
|
|
|
- Harry Heath
- 5 years ago
- Views:
Transcription
1 An Analysis of the HF Antennas at 33 BBHR Azimuth for Various Countries Terrain toward Various Countries The HF Antennas at 33 BBHR HFTA Response for Each Antenna Comparison of Antennas at Specific Azimuths Larry Banks, W1DYJ First licensed: 1962 (KN1VFX) W1DYJ since 1966 Amateur Extra 10 Matthews Way Harpswell ME 33 Blueberry Hill Road Woburn MA Page 1 Woburn Antenna Analysis
2 33 BBHR Azimuth for Various Countries Japan / India 35 Iceland Australia England Spain California New Zealand South Africa French Guiana 180 Chile Argentina Page 2 Woburn Antenna Analysis
3 33 BBHR Topo Map and Azimuth for Various Countries 10,000 ft 5,000 ft Page 3 Woburn Antenna Analysis
4 33 BBHR 3D Maps Looking North Looking South Looking West Looking East Note: Vertical dimensions are enhanced by a factor of 8 Page 4 Woburn Antenna Analysis
5 33 BBHR Terrain toward Various Countries 31 India 35 Iceland / EurRussia 53 England 70 Spain 110 South Africa 154 French Guiana 177 Argentina 181 Chile 249 New Zealand 270 California 300 Australia 337 Japan Page 5 Woburn Antenna Analysis
6 The HF Antennas at 33 BBHR 20M: Homebrew Moxon 12M W1DYJ design see QST April 2009 / Antenna Compendium #8 Built and erected September 2004 Fed with 80 RG8x 0.88 db matched loss 100 W at transmitter 82 W at antenna 40M / 80M: Alpha-Delta 7M Erected May 2001 Fed with 100 RG db matched loss (80M) 1.1 db matched loss (40M) 100 W at transmitter 85 W at antenna (80M) 78 W at antenna (40M) 10M: Homebrew 5 element 10M Design from 1994 ARRL Antenna Book Built and erected April 2000 Fed with 70 LMR db matched loss 100 W at transmitter 81 W at antenna 15M: Homebrew 11M W1DYJ design Built and erected November 2010 Fed with 70 RG8X 0.95 db matched loss 100 W at transmitter 80 W at antenna The VHF stack is not part of this discussion K1FO 12 el 2 M (CW / SSB) CC (FM) HB 7 el 6M (CW / SSB) Page 6 Woburn Antenna Analysis
7 10M: 5 30ft: HFTA Response toward Various Countries 31 India 35 Iceland / EurRussia 53 England 70 Spain 110 South Africa 154 French Guiana 177 Argentina 181 Chile 249 New Zealand 270 California 300 Australia 337 Japan Page 7 Woburn Antenna Analysis
8 15M: Dipole 33ft: HFTA Response toward Various Countries 31 India 35 Iceland / EurRussia 53 England 70 Spain 110 South Africa 154 French Guiana 177 Argentina 181 Chile 249 New Zealand 270 California 300 Australia 337 Japan Page 8 Woburn Antenna Analysis
9 20M: Moxon 36ft : HFTA Response toward Various Countries 31 India 35 Iceland / EurRussia 53 England 70 Spain 110 South Africa 154 French Guiana 177 Argentina 181 Chile 249 New Zealand 270 California 300 Australia 337 Japan Page 9 Woburn Antenna Analysis
10 40M 22ft: HFTA Response toward Various Countries 31 India 35 Iceland / EurRussia 53 England 70 Spain 110 South Africa 154 French Guiana 177 Argentina 181 Chile 249 New Zealand 270 California 300 Australia 337 Japan Page 10 Woburn Antenna Analysis
11 80M 22ft: HFTA Response toward Various Countries 31 India 35 Iceland / EurRussia 53 England 70 Spain 110 South Africa 154 French Guiana 177 Argentina 181 Chile 249 New Zealand 270 California 300 Australia 337 Japan Page 11 Woburn Antenna Analysis
12 Comparison of Antennas at Specific Azimuths Note: Antennas are IN FRONT of Hill 35 Iceland / European Russia 10 M 15 M 20 M 40 M 80 M Page 12 Woburn Antenna Analysis
13 Comparison of Antennas at Specific Azimuths Note: Antennas are IN FRONT of Hill 53 England 10 M 15 M 20 M 40 M 80 M Page 13 Woburn Antenna Analysis
14 Comparison of Antennas at Specific Azimuths Note: Antennas are IN FRONT of Hill 110 South Africa 10 M 15 M 20 M 40 M 80 M Page 14 Woburn Antenna Analysis
15 Comparison of Antennas at Specific Azimuths Note: Antennas are BEHIND Hill 177 Argentina 10 M 15 M 20 M 40 M 80 M Page 15 Woburn Antenna Analysis
16 Comparison of Antennas at Specific Azimuths Note: Antennas are IN FRONT of Hill 270 California 10 M 15 M 20 M 40 M 80 M Page 16 Woburn Antenna Analysis
17 Comparison of Antennas at Specific Azimuths Note: Antennas are IN FRONT of Hill 300 Australia 10 M 15 M 20 M 40 M 80 M Page 17 Woburn Antenna Analysis
18 Comparison of Antennas at Specific Azimuths Note: Antennas are IN FRONT of Hill 337 Japan 10 M 15 M 20 M 40 M 80 M Page 18 Woburn Antenna Analysis
One Ham s Journey with Antennas
One Ham s Journey with Antennas During the 56 years that I have been a ham, I have built and used many antennas. Using ARRL awards as goals, this talk will survey my antennas in Woburn and Harpswell, ME,
Choosing Your First HF Antenna
The American Radio Relay League Choosing Your First HF Antenna Greater Fairfield Amateur Radio Assn May 1, 2017 Joel R. Hallas, W1ZR Contributing Editor, QST ARRL Copyright 2017, Joel Hallas, all rights
Bob Witte, KØNR Monument, CO
Monument, CO 1 Introduction Licensing Example Operations Serious Dxpeditions (K1N) Q&A 2 Country Callsign Notes Canada KBØCY/VE6 VHF Japan 7J1AUE VHF/UHF Honduras HR3/KBØCY HF Bahamas KBØCY/C6A KØNR/C6A
TFD Array Modification: Dual Two Element Vertical Stacked Yagi Larry Dodd K4LED Observatory (October 29, 2017) Abstract
TFD Array Modification: Dual Two Element Vertical Stacked Yagi Larry Dodd Observatory 101science@gmail.com (October 29, 2017) Abstract Two reflector elements were added to the existing Typinski Dual TFD
VHF/UHF Beyond FM Bob Witte KØNR Page 1
VHF/UHF Beyond FM Technical Coordinator Colorado Section Page 1 Objective The objective of this presentation is to provide an introduction to operating on VHF/UHF, going beyond the usual FM / Repeater
Yagi Antenna Tutorial. Copyright K7JLT 1
Yagi Antenna Tutorial Copyright K7JLT Yagi: The Man & Developments In the 920 s two Japanese electrical engineers, Hidetsugu Yagi and Shintaro Uda at Tohoku University in Sendai Japan, investigated ways
Sure Cross Radio Certifications
Sure Cross Radio Certifications Banner's Sure Cross product line is certified by the FCC, European Union, and many other countries for operation within specific radio frequencies. FCC Certification, 900MHz
ANTENNAS Wires, Verticals and Arrays
ANTENNAS Wires, Verticals and Arrays Presented by Pete Rimmel N8PR 2 1 Tonight we are going to talk about antennas. Anything that will conduct electricity can be made to radiate RF can be called an antenna.
General License Class Chapter 6 - Antennas. Bob KA9BHD Eric K9VIC
General License Class Chapter 6 - Antennas Bob KA9BHD Eric K9VIC Learning Objectives Teach you enough to get all the antenna questions right during the VE Session Learn a few things from you about antennas
Summits On The Air Colorado Style. Bob Witte, KØNR Monument, CO
Summits On The Air Colorado Style Monument, CO 1 1.Colorado 14er Event 2.Summits On The Air (SOTA) 3.Summary, Q&A 2 Held the First Full Weekend in August (August 6-7, 2016) This year the event is all weekend
Antenna Stacking! Antenna Stacking! Why? To Cover ALL the Angles! Scott Dickson, W5WZ
Antenna Stacking! Antenna Stacking! Why? To Cover ALL the Angles! Scott Dickson, W5WZ Using Science to Plan a Station Using Science to Plan a Station There are three elements needed to plan an HF station
Bob Witte, KØNR Monument, CO
Monument, CO 1 2 Optical horizon from Pikes Peak: 120 miles, plus 15% for radio horizon = 138 miles Mt Sunflower (highest spot in Kansas) is easily worked on 2M FM from Pikes Peak (160 miles) Best 2M FM
VHF/UHF Dual Band J-Pole. By: Ed Fong WB6IQN
VHF/UHF Dual Band J-Pole By: Ed Fong WB6IQN email: edison_fong@hotmail.com ARRL VHF/UHF Antenna Classics ARRL Vol. 8 Antenna Compendium ARRL Vol. 3 Antenna Compendium QST March 2007 QST February 2003 QST
Power supply for Beverage box with Interference filter three directions
Antennas Amplifiers List. 05.05.2015 www.antennas-amplifiers.com Beverage Boxes with integrated common mode chokes. Wideband operation. In plastic box for outdoor mounting. SO239 connector. Beverage box
Emergency Antennas VHF / UHF - FM. HF Voice, CW, or Digital
1 Emergency Antennas VHF / UHF - FM HF Voice, CW, or Digital 2 Antennas for VHF Quarter Wave Vertical Half Wave Vertical Vertical Dipole J-Pole 3 Design Parameters Primarily line of sight Mounted on trunk
A 40+ db Gain Antenna Made from Paper
A 40+ db Gain Antenna Made from Paper *Flying Antenna/QSO A New Antenna Theory *An Inexpensive SWTL *An All-Band Antenna Q&A *Construction Article Available John Kraus, W8JK John Kraus, W8JK 2 Sonoma County,
Antennas and Propagation Chapters T4, G7, G8 Antenna Fundamentals, More Antenna Types, Feed lines and Measurements, Propagation
Antennas and Propagation Chapters T4, G7, G8 Antenna Fundamentals, More Antenna Types, Feed lines and Measurements, Propagation =============================================================== Antenna Fundamentals
Chapter 6 Antenna Basics. Dipoles, Ground-planes, and Wires Directional Antennas Feed Lines
Chapter 6 Antenna Basics Dipoles, Ground-planes, and Wires Directional Antennas Feed Lines Some General Rules Bigger is better. (Most of the time) Higher is better. (Most of the time) Lower SWR is better.
International Grid Square Chase A new DX-ing Challenge Delvin Bunton, NS7U
International Grid Square Chase 2018 A new DX-ing Challenge Delvin Bunton, NS7U Overview What are Grid Squares? What is the International Grid Square Chase? IGC Rules Logbook of the World (LoTW) Aids for
Half-Wave Dipole. Radiation Resistance. Antenna Efficiency
Antennas Simple Antennas Isotropic radiator is the simplest antenna mathematically Radiates all the power supplied to it, equally in all directions Theoretical only, can t be built Useful as a reference:
Amateur Radio License. Propagation and Antennas
Amateur Radio License Propagation and Antennas Todays Topics Propagation Antennas Propagation Modes Ground wave Low HF and below, ground acts as waveguide Line-of-Sight (LOS) VHF and above, radio waves
Terrain Analysis: Some YCCC Case Studies
Terrain Analysis: Some YCCC Case Studies A Presentation at The New England Division YCCC Meeting Saturday, August 14, 2004 Boxboro, MA by Dean Straw, N6BV Senior Assistant Technical Editor, ARRL 1 Is This
Bob Witte, KØNR Monument, CO
Monument, CO 1 2 Optical horizon from Pikes Peak: 120 miles, plus 15% for radio horizon = 138 miles Mt Sunflower (highest spot in Kansas) is easily worked on 2M FM from Pikes Peak (160 miles) Best 2M FM
Weekend Antennas No. 5 The "Compact Quad" Multiband Antenna
Weekend Antennas No. 5 The "Compact Quad" Multiband Antenna When I relocated to Johannesburg I needed a new multiband HF antenna. Since I was staying in a rented house a tower was out of the question,
Newspaper cartoon from the early 60 s
Newspaper cartoon from the early 60 s NVIS for Emergency Communications Ross Mazzola Monroe County (NY) ARES Why NVIS? Damage to Infrastructure Inoperative Towers & Repeater Sites Loss of Backup Power
6M DX ING Jason Timmis, VE7AG. Why, What, Where, When and How.
6M DX ING Jason Timmis, VE7AG Why, What, Where, When and How. WHY? Intrigue of doing something rare; witnessing the mystique of propagation Playing with Mother Earth and winning Because it s not 20M s!!
A homebrew QRP Transceiver. Lots of Fun & Lessons Learnt
A homebrew QRP Transceiver Lots of Fun & Lessons Learnt Background In 2008 I was transferred to a new location. I could bring 2 suitcases along and spent 5 months in an apartment until the container with
The Classic. A License to Learn
The Obvious A certification granted by the Federal Communications Commission that the holder has exhibited the required proficiencies to legally transmit on radio frequencies as defined in the regulations.
VHF Operation and Field Day: FAQ s, Tips and Guides for Getting More Field Day QSOs
VHF Operation and Field Day: FAQ s, Tips and Guides for Getting More Field Day QSOs By: Steve Ford, WB8IMY, Editor, QST & ARRL s Public Relations Staff When most hams think of Field Day, they automatically
DX University: Antennas
DX University: Antennas 29 August 31 Kai Siwiak, KE4PT Prepared for N4II s s DX-University series Sponsored by the South Florida DX Association No Antenna Theory, Just Results What does it take to work
DO NOT COPY QRP. Bill Shanney, W6QR December 2017
QRP Bill Shanney, W6QR December 2017 HF Played a Critical Role in the Recent Disasters VHF/UHF provided much needed local comm for responder coordination and evacuation center status Cell service was out
Coaxial Cable Feeder Influence on Four Stacked Yagi Antennas Array Dragoslav Dobričić, YU1AW
Coaxial Cable Feeder Influence on Four Stacked Yagi Antennas Array Dragoslav Dobričić, YU1AW dragan@antennex.com Introduction Aprevious article series consisted of two parts [1, 2] showing the results
Welcome to Ham Radio 201 New General / Extra Session
Welcome to Ham Radio 201 New General / Extra Session Sponsored by Agenda New Technician / New Licensee 8:00 Kickoff 8:15 VHF/UHF Gear - George 9:00 VHF/UHF Operating - Beric 9:45 VHF Digital Voice George
4/29/2012. General Class Element 3 Course Presentation. Ant Antennas as. Subelement G9. 4 Exam Questions, 4 Groups
General Class Element 3 Course Presentation ti ELEMENT 3 SUB ELEMENTS General Licensing Class Subelement G9 Antennas and Feedlines 4 Exam Questions, 4 Groups G1 Commission s Rules G2 Operating Procedures
Technician Licensing Class T9
Technician Licensing Class T9 Amateur Radio Course Monroe EMS Building Monroe, Utah January 11/18, 2014 January 22, 2014 Testing Session Valid dates: July 1, 2010 June 30, 2014 Amateur Radio Technician
July 1995 QST Volume 79, Number 7
Lab Notes Prepared by the ARRL Laboratory Staff (e-mail: tis@arrl.org) By Mike Tracy, KC1SX Technical Information Service Coordinator Q: I m just getting started on VHF and UHF FM and I want to set up
Boom Distance Influence on Yagi Antenna Dragoslav Dobričić, YU1AW (Serbia)
Boom Distance Influence on Yagi Antenna Dragoslav Dobričić, YU1AW (Serbia) dragan@antennex.com Introduction In a previous article [1] we investigated boom radius influence on six Yagi antennas very similar
Basic Wire Antennas. Part II: Loops and Verticals
Basic Wire Antennas Part II: Loops and Verticals A loop antenna is composed of a single loop of wire, greater than a half wavelength long. The loop does not have to be any particular shape. RF power can
The New and Improved Carolina Windom Antenna and ½ Wave End Fed 20 Meter Vertical and Sloping Wire Antennas. EZNEC analysis by Pete Rimmel, N8PR
The New and Improved Carolina Windom Antenna and ½ Wave End Fed 20 Meter Vertical and Sloping Wire Antennas EZNEC analysis by Pete Rimmel, N8PR Keeps RF off the Coax below this point / (part of)/ That
4/25/2012. Supplement T9. 2 Exam Questions, 2 Groups. Amateur Radio Technician Class T9A: T9A: T9A: T9A:
Amateur Radio Technician Class Element 2 Course Presentation ti ELEMENT 2 SUB-ELEMENTS Technician Licensing Class Supplement T9 Antennas, Feedlines 2 Exam Questions, 2 Groups T1 - FCC Rules, descriptions
A SHORT TWO-WAY BEVERAGE ANTENNA PROJECT. By Phil Anderson, WØXI
A SHORT TWO-WAY BEVERAGE ANTENNA PROJECT By Phil Anderson, WØXI I live in a suburban neighborhood and about two blocks from a shopping center. The city population is nearly 100,000. As such, you can imagine
Amateur Radio Satellites
Amateur Radio Satellites An Introduction and Demo of AO-85 Eddie Pettis, N5JGK and Russ Tillman, K5NRK Presentation Outline History of Amateur Radio Satellites: Project OSCAR and AMSAT Amateur Radio Satellites
Building A Simple Wire Beam Antenna. Kurt Kochendarfer, KE7KUS Sacramento Mountains Radio Club
Building A Simple Wire Beam Antenna by Kurt Kochendarfer, KE7KUS Sacramento Mountains Radio Club OVERVIEW The Problem The Path Signal Math Antenna Candidates Modeling the Antenna Construction Techniques
General Class License Theory III. Dick Grote K6PBF
General Class License Theory III Dick Grote K6PBF K6pbfdick@gmail.com 1 Introduction In this session we will learn about: Feed Lines Antennas Safety As in the other theory classes, we will try to present
Antennas 101 Don t Be a 0.97 db Weakling! Ward Silver NØAX
Antennas 101 Don t Be a 0.97 db Weakling! Ward Silver NØAX Overview Antennas 101 2 Overview Basic Antennas: Ground Plane / Dipole How Gain and Nulls are Formed How Phased Arrays Work How Yagis Work (simplified)
The Zeus ZS-1 SDR. Bloemfontein Amateur Radio Club Bloemfontein Amateurradioklub An affiliated Club of the South African Radio League
(Club management from page 26) teract before the meeting and during breaks. However, saving time for meetings after the meeting helps more specialised groups meet somewhere else. In one of my clubs, the
DXCC Honor Roll in One Solar Cycle
DXCC Honor Roll in One Solar Cycle A Little Pistol Adventure KY6R Rich Holoch Pacificon 2013 Current KY6R Station Elecraft K-Line and KX3 I am the Director of Customer Solutions for Splice Machine a Big
QRP. What, Why & How. Keith Price» WA5LPW QRP. How low can you go?
What, Why & How Vast majority of this presentation taken (with permission) from Phil Salas AD5X http://www.ad5x.com/ 2 Defined : Decrease Power Or,?: Shall I decrease power? In Amateur Radio, it refers
New Tech - Operating Beric K6BEZ
New Tech - Operating Beric K6BEZ Sponsored by Start with Repeater Operation What is a Repeater? Station usually in a high location Repeats what it hears so others can hear Why start there? Greatly increases
Fundamentals of Antennas. Prof. Ely Levine
Fundamentals of Antennas Prof. Ely Levine levineel@zahav.net.il 1 Chapter 3 Wire Antennas 2 Types of Antennas 3 Isotropic Antenna Isotropic radiator is the simplest antenna mathematically Radiates all
Other Arrays CHAPTER 12
CHAPTER 12 Other Arrays Chapter 11 on phased arrays only covered arrays made of vertical (omnidirectional) radiators. You can, of course, design phased arrays using elements that, by themselves, already
Technician License. Course
Technician License Course Technician License Course Chapter 4 Lesson Plan Module - 10 Practical Antennas The Dipole Most basic antenna The Dipole Most basic antenna The Dipole Total length is ½ wavelength
Beams and Directional Antennas
Beams and Directional Antennas The Horizontal Dipole Our discussion in this chapter is about the more conventional horizontal dipole and the simplified theory behind dipole based designs. For clarity,
FM sensitivity, for 12 db SINAD Frequency Preamp off Preamp one Preamp two
I C O M I C - R 7 5 QST, January 2000 Receiver Dynamic Testing (unless otherwise specified all dynamic range measurements are taken at the ARRL lab standard spacing of 20 khz.) Noise floor (mds), 500 Hz
One I had narrowed the options down, I installed some wire and started testing.
Loft & Attic antennas for restricted spaces - M. Ehrenfried G8JNJ I ve recently been looking at designs for an efficient antenna that would fit in a loft. I hoped to find something that would work on with
VHF and UHF Antenna Systems
Chapter 18 VHF and UHF Antenna Systems A good antenna system is one of the most valuable assets available to the VHF/UHF enthusiast. Compared to an antenna of lesser quality, an antenna that is well designed,
Technician License Course Chapter 3 Types of Radios and Radio Circuits. Module 7
Technician License Course Chapter 3 Types of Radios and Radio Circuits Module 7 Radio Block Diagrams Radio Circuits can be shown as functional blocks connected together. Knowing the description of common
Technician License Course Chapter 2. Lesson Plan Module 3 Modulation and Bandwidth
Technician License Course Chapter 2 Lesson Plan Module 3 Modulation and Bandwidth The Basic Radio Station What Happens During Radio Communication? Transmitting (sending a signal): Information (voice, data,
Using High Performance Multiplexer Technology to Improve Your HF Station Capability. by Andrei Fedorishchev RA6LBS
Using High Performance Multiplexer Technology to Improve Your HF Station Capability by Andrei Fedorishchev RA6LBS Agenda A bit of history What is a multiplexer? Can I fry my radios? Specifications of multiplexers
PO01275C Tabor East Neighborhood Meeting. Monday, April 20, :30 PM 8:30 PM
PO01275C Tabor East Neighborhood Meeting Monday, April 20, 2015 6:30 PM 8:30 PM 1 Opening Remarks, Introductions, Explanation of Agenda and Procedure Lenny Borer Moderator 2 Portland Office for Community
CHAPTER 8 ANTENNAS 1
CHAPTER 8 ANTENNAS 1 2 Antennas A good antenna works A bad antenna is a waste of time & money Antenna systems can be very inexpensive and simple They can also be very expensive 3 Antenna Considerations
NEAR-Fest. Back by Popular Demand, The W1ZE PVC Frame 6-Meter Moxon. The Lincoln County repeater. K1LX/R is alive on a new hill.
The Lincoln County repeater K1LX/R is alive on a new hill After a long absence, thanks to the efforts of Ernie Richards, K1NI, Dave Hawke, KQ1L and Randy Lewis, K1XI, the Lincoln County Amateur Radio Club's
A Tri Band Antenna for 2 meters, 220 MHz, and 70cm Antenna Without Radials. By: Edison Fong (WB6IQN)
A Tri Band Antenna for 2 meters, 220 MHz, and 70cm Antenna Without Radials By: Edison Fong (WB6IQN) Twenty years ago a single band handie talkie would have been adequate for emergency use since almost
Field Day 2018 Station Configurations
Field Day 2018 Station Configurations Jim Marr, Adapted by Jonathan Cameron KF6RTA June, 2018 June 2018 FD2018 Stn Configs 1 Configuration in Brief (4A) Stations: (1) W6MES: 40/75m SSB with fan dipole
OPERATING AND PROCEDURES. Lesson 2
OPERATING AND PROCEDURES Lesson 2 1. PHONETIC ALPHABET 2. NUMBERS AGENDA 3. VOICE OPERATING PROCEDURES 4. HF / UHF / VHF / BAND PLANS 5. TUNE UPS, TESTING, DUMMY LOADS 6. CW OPS, PROCEDURAL SIGNS / PROWORDS
VHF and UHF Antennas for QRP Portable Operation. Prepared for the QRP forum at Pacificon2011 by KK6MC James Duffey October 15, 2011
VHF and UHF Antennas for QRP Portable Operation Prepared for the QRP forum at Pacificon2011 by KK6MC James Duffey October 15, 2011 Overview Get on the air from portable locations with simple and effective
SATELLITES WITH A COLLINEAR ANTENNA
SATELLITES WITH A COLLINEAR ANTENNA Juan Antonio Fernández Montaña EA4CYQ Radio amateurs have not yet been able to cross the Atlantic Ocean in the high bands (145 MHz up), but we have to say in terrestrial
Transforms and electrical signal into a propagating electromagnetic wave OR vise versa. - Transducer goes both ways. TX and RX antennas have
Gary Rondeau AF7NX Transforms and electrical signal into a propagating electromagnetic wave OR vise versa. - Transducer goes both ways. TX and RX antennas have different jobs. For TX want to generate as
DO NOT COPY. Basic HF Antennas. Bill Shanney, W6QR
Basic HF Antennas Bill Shanney, W6QR When I was first licensed in 1961 I didn t know much about antennas. I put up the longest wire that fit on my parent s lot at the lofty height of 25 and fed it with
OMIK Tech-Talk. May 2016
http://www.omikradio.org An International Educational and Scientific Organization Founded in August of 1952 OMIK Tech-Talk is a monthly distribution of news and technical articles reviewed and chosen by
M2 Antenna Systems, Inc. Model No: 2MCP22
M2 Antenna Systems, Inc. Model No: 2MCP22 SPECIFICATIONS: Model... 2MCP22 Frequency Range... 144 To 148 MHz *Gain... 14.39 dbic Front to back... 25 db Typical Elipticity... >3db Beamwidth... 38 Feed type...
Radio Havana Cuba Dxers Unlimited Dxers Unlimited's Sunday July By Arnie Coro radio amateur CO2KK
Radio Havana Cuba Dxers Unlimited Dxers Unlimited's Sunday July 26 2015 By Arnie Coro radio amateur CO2KK Hello amigos, welcome to this special edition of Dxers Unlimited, recorded two days before it went
CENTRAL TEXAS DX AND CONTEST CLUB
CENTRAL TEXAS DX AND CONTEST CLUB October 2, 2018 rev5 Club Meeting Presentation 1 Why, What & How * Steve Franke, K9AN Joe Taylor, K1JT Remote In Marquette, MI Presented by Gene Hinkle, K5PA Tom Parish,
2018 VHF-UHF Round Up Contest Rules and Guidelines (rev )
21 April 2018, 0500 UTC 22 April 2018, 0459 UTC 1. Objective: For participating amateur radio stations to contact as many amateur radio stations as possible within the allocated contest period. Provide
A Fox- Hunting DF Twin Tenna
A Fox- Hunting DF Twin Tenna Interferometers give sharp bearings, but they lack sensitivity for distant work. Yagis are sensitive, but they provide relatively broad bearings. Build an antenna that blends
INFORMAL DXPEDITION TO FRENCH POLYNESIA
INFORMAL DXPEDITION TO FRENCH POLYNESIA AB1OC and AB1QB February 18 th 23 rd, 2012 Tonight s Presentation Planning and Preparation The Destination Our Station in Bora Bora Operations Propagation QSL ing
HamSCI and the 2017 Total Solar Eclipse
HamSCI and the 2017 Total Solar Eclipse N. A. Frissell, W2NAF 1,2 J.R. Ackermann 1, G.D. Earle 1,3, P.J. Erickson 1,4 A.J. Gerrard 1,2, R.B. Gerzoff 1, S.W. Gunning 1,2, M. Hirsch 1,5, J.D. Katz 1,2, S.R.
R adio. Enhancing our youths competitive edge through merit badges
R ADIO STEM-Based BOY SCOUTS OF AMERICA MERIT BADGE SERIES R adio Enhancing our youths competitive edge through merit badges Radio 1. Explain what radio is. Then discuss the following: (a) The differences
4 Antennas as an essential part of any radio station
4 Antennas as an essential part of any radio station 4.1 Choosing an antenna Communicators quickly learn two antenna truths: Any antenna is better than no antenna. Time, effort and money invested in the
simple and robust feeding system. No phasing lines or matching devices to worry about. spiderbeam on 10m aluminium push-up pole
The spiderbeam was developed as a DXpeditioner's dream antenna. It is a full size lightweight tribander yagi made of fiberglass and wire. The whole antenna weight is only kg (lbs), making it ideally suited
Why QRP? The Joys of Low-Power Ham Radio QRP. Colorado QRP Club Ver
Why? The Joys of Low-Power Ham Radio Colorado Club www.coloradoqrpclub.org Ver 110617 What is? A telegraphy Q-signal = To lower your power? = Can you lower your power? Five watts RF output power (or less!)
Technician Licensing Class. Antennas
Technician Licensing Class Antennas Antennas A simple dipole mounted so the conductor is parallel to the Earth's surface is a horizontally polarized antenna. T9A3 Polarization is referenced to the Earth
AN INTRODUCTION TO VHF/ UHF PROPAGATION. Paul Wilton, M1CNK
AN INTRODUCTION TO VHF/ UHF PROPAGATION Paul Wilton, M1CNK OVERVIEW Introduction Propagation Basics Propagation Modes Getting Started in 2m DX INTRODUCTION QRV on 2m SSB since Aug 1998, on 6m since Jan
N0GW Log Periodic Installation
N0GW Log Periodic Installation I am particularly happy with my HF log periodic beam antenna installation. This is my first tower mounted, rotatable, beam antenna. Before retiring and moving to the Ozarks,
What is VOACAP Trying to Tell Me?
What is VOACAP Trying to Tell Me? A Presentation to The Yankee Clipper Contest Club Feb. 1, 2003 Milford, CT by Dean Straw, N6BV Senior Assistant Technical Editor, ARRL VOACAP VOACAP has been under development
Portable Magnetic Loop Antenna. KG5EAO Rick Bono
Portable Magnetic Loop Antenna KG5EAO Rick Bono April 2, 2016 Overview Develop a Portable magnetic loop antenna for use on HF bands running QRP. Portable and easy to deploy Ideally run on the 40m through
Improving Performance of Arrays
Improving Performance of Arrays Richard C. Jaeger, K4IQJ Robert L. Schafer, KA4PKB Auburn, AL Dayton Hamvention, May 18, 2012 K4IQJ@mindspring.com INTRODUCTION Introduction & Background RDF Definition
Coming next: Wireless antennas for beginners
Coming next: Wireless antennas for beginners In other rooms: Logbook of the World (Sussex Suite) SO2R contest operation (Stable Suite) Wires for your wireless: Simple wire antennas for beginners dominic
40 Meter Mini Moxon Beam Antenna At W7xa Ham Radio
We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with 40 meter mini moxon
This Antenna Basics reference guide includes basic information about antenna types, how antennas work, gain, and some installation examples.
Antenna Basics This Antenna Basics reference guide includes basic information about antenna types, how antennas work, gain, and some installation examples. What Do Antennas Do? Antennas transmit radio
Radio Merit Badge Boy Scouts of America. Module 3 Amateur Radio
Radio Merit Badge Boy Scouts of America Module 3 Amateur Radio 2009 Key Topics in This Module Why does the FCC have an Amateur Radio Service? Amateur Radio Activities Logging a Contact Q Signals & Abbreviations
Discover the Magic Of HF Radio. By Norm Fusaro, W3IZ
Discover the Magic Of HF Radio By Norm Fusaro, W3IZ HF is FUN With a 100 watt transceiver and a simple wire antenna you can start to communicate and make friends with other hams all over the country or
User Guide for the Alpha Antenna 6 40 or meter OCF Dipole
User Guide for the Alpha Antenna 6 40 or 10 80 meter OCF Dipole Manufactured by: Alpha Antenna 1.888.482.3249 Website: http://alphaantenna.com User Guide Version 3.0 March 23, 2018 Page 1 Table of Contents
Antenna. Wave length Km/s
Antenna 5% Wave length 300 000 Km/s 066 velocity factor RG-58 = C = = F : 120 Impedance 50 50 50 VSWR and Reflected Power SWR VSWR VSWR 2:1 Voltage Standing Wave Ratio VSWR 15:1 15:1 VSWR 100 Watt 1:1
Ham Radio License Manual - Supplemental Material. 1 July 2009
Ham Radio License Manual - Supplemental Material 1 July 2009 The following text is presented on the Ham Radio License Manual Web page as Supplemental Material intended to support or correct the 1 st edition
Antenna Engineering Lecture 0: Introduction
Antenna Engineering Lecture 0: Introduction ELCN405 Fall 2011 Communications and Computer Engineering Program Faculty of Engineering Cairo University 2 Outline 1 Electromagnetic Spectrum Recent Advances
Optimizing Your Stations Performance
Optimizing Your Stations Performance A few hints / techniques, recommendations for getting the most RF out to the Antenna from your HF, VHF / UHF station. Tonights Presenters: Doug Theriault NO1D John
Current Solar Cycle Poor propagation No propagation Checking HF propagation. Coping with poor HF propagation Q&A
Topics Current Solar Cycle Poor propagation No propagation Checking HF propagation Predictive (HF propagation prediction software) Empirical (beacons, WSPR, PSKREPORTER and operator testing) Coping with
Antenna simulations Part 2
Antenna simulations Part 2 Pekka Ketonen OH1TV 27.1.2011 OH1TV 1 Outline Part 1 Some principles in antenna design typical steps in design process Opposite Voltage Feed 2 phased verticals on 80m 2 over
VHF Experiments. ...or Putting the Tech back on the Technician Bands. Rick Campbell KK7B. note page numbers for questions
VHF Experiments...or Putting the Tech back on the Technician Bands Rick Campbell KK7B note page numbers for questions 1 Here I am: KK7B/KH6 September 9 2 Here s my VHF Bench: while measuring temperature