- 50MHz Power Splitters
Splitting an antenna between two receivers or in use as the phasing harness in stacked ...
Votes: 6 | Rating: 8
- A Collection of Smith Chart Resources
The Smith Chart was originally created many years ago as an RF engineering aid by ...
Votes: 4 | Rating: 2.5
- A Modern Thermocouple Ammeter
Thermocouple ammeters are very rare these days but the job they were perfect for measuring ...
Votes: 2 | Rating: 6
- A Practical Approach to Ham Radio Antennas
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This presentation on antennas is a practical guide for amateur radio operators The key takeaway ...
By G3FEW
- About trap antennas
Negatives sides of using trap antennas
Votes: 2 | Rating: 7
- Actual Antenna SWR
Easy for calculate formula which could be a wake up call for you The SWR ...
Votes: 5 | Rating: 4.8
- Advanced active VLF Loop
Article on using loop antenna in very low frequencies
Votes: 3 | Rating: 7
- All About Antennas
A free five part series on antennas that covers many aspects of antennas from radio ...
By W8JHD
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Votes: 3 | Rating: 7.5
- All HF Band Antennas
F6ITV consideration on HF Antennas, from trap wired anternnas, to center feed antennas.
- Amateur Radio Antennas: Ground Theory
Perfect ground vs poor ground What is the difference How does the ground influence the ...
- Another way to look at vertical antennas
What iss the difference between a dipole and a vertical Maybe not as much as ...
- Antenna & Ground Help
Radials & Counterpoise
Votes: 1 | Rating: 1
- Antenna & Mounts
Mobile antennas how to install antennas in the roof of a vehicle and how tune ...
Votes: 7 | Rating: 8.57
- Antenna basics
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Basics by From Ian C. Purdie, VK2TIP
Votes: 37 | Rating: 5.13
- Antenna Basics
Article designed to answer basic questions about antennas
By SM0VPO
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Votes: 20 | Rating: 6.35
- Antenna Basics : Directional Antennas
An article describing basic concepts of antenna radiation and in particular directional antennas like Yagi ...
By Scott
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Votes: 1 | Rating: 2
- Antenna Cable Loss and SWR
Calculate Cable Loss from SWR and reverse Text file with only two simply formulas ...
Votes: 4 | Rating: 4
- Antenna Diversity
Single antenna with multiple polarization for diversity diveristy receivers and propagation effects on signal polarization ...
- Antenna Efficiency
K0BG article con antenna efficiency covering topics like radiation resistance coil losses and ground losses ...
- Antenna Fundamentals
Adalet wireless document on antenna basics in a four pages pdf file
Votes: 1 | Rating: 3
- Antenna Height Theory
Antenna mounting height the higher the better Learn how radiation pattern change and decide if ...
Votes: 5 | Rating: 7.2
- Antenna Measurement Theory
Introduction to Antenna Measurement by orbit /fr pdf file
- Antenna Measurements
The electrical characteristics of an antenna that are of interest to obtain by direct measurement ...
Votes: 3 | Rating: 4
- Antenna Measurements
Testing of real antennas is fundamental to antenna theory The most common and desired measurements ...
By Bevelacqua
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Votes: 1 | Rating: 10
- Antenna Myths
It is best not to know very much than to know a lot of things ...
Votes: 2 | Rating: 4
- Antenna Noise and Signal Cancelling at LF
By using the signals from two antennas controlling their relative amplitudes and controlling the phase ...
Votes: 6 | Rating: 4.5
- Antenna resonance and bandwidth
About antenna or aerial resonance and bandwidth and the impact of RF antenna resonance and ...
- Antenna Selection Made Easy
This page will help you answer important questions about antenna selection before you talk to ...
Votes: 2 | Rating: 3
- Antenna Theory
A discussion of antenna theory by Paul Graham K9ERG one of the better antenna explainations ...
Votes: 9 | Rating: 8
- Antenna tips for the beginner
Some rules of thumb for beginners with a QRP approach by James R Duffey KK6MC ...
Votes: 2 | Rating: 10
- Antenna Transmatch Tips
Tips on tuning antennas using Antenna Tuning Units also called ATU This article explains the ...
Votes: 5 | Rating: 6.4
- Antenna-Theory.com
A source of knowledge for learning about and understanding antennas The goal is to present ...
By Pete
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Votes: 3 | Rating: 6.67
- Antennas 101
Dipoles, Doublets and Verticals by Rob May NV5E
Votes: 1 | Rating: 8
- Antennas : theory and designs
Thierry LOMBRY ON4SKY develops in several long articles all you need to know about antennas ...
By Thierry LOMBRY, ON4SKY
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Votes: 11 | Rating: 3.27
- Antennas and Grounds for apartments
Suggestions on finding RF ground when you live in an apartment and you want to ...
Votes: 12 | Rating: 5.75
- Antennas and Transmission Lines Myths
Antennas, Transmission Lines, Tuners - Myths, Mysteries and Qualifiers By Don Wilhelm W3FPR
Votes: 2 | Rating: 10
- Antennas for 100 Pound DXpeditions
NE1RD interesting publication published online about homebrewing antennas for dx peditions or portable use ...
Votes: 3 | Rating: 7.33
- Antennas for Limited Spaces
In this article you can find solutions to the problem of keeping your ham radio ...
Votes: 1 | Rating: 1
- Antennas Tech reference by K1TTT
Yagi Antennas, Antenna Materials and more.
Votes: 14 | Rating: 4.94
- Azimuth Radiation Patterns
Below VHF the change in the radiation characteristics of an antenna will change considerably from ...
Votes: 1 | Rating: 10
- Balun Theory
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The word balun means balanced unbalanced it s used to adapt a balanced device to ...
By g4urh
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Votes: 33 | Rating: 6.73
- Basics of antennas
The current the voltage the impedance the bandwidth the polarization and how the earth influences ...
- Better Feedline Loss Measurements with Antenna Analyzers
Various publications through the years have shown how the SWR measured on a shorted or ...
Votes: 2 | Rating: 10
- Choosing Wire Size for Toroidal Inductors
Measurements that show it doesn't make much difference
Votes: 22 | Rating: 6.1
- Coax Antennas
Amateur Radio Coaxial Antennas by G3TXQ
- Coax Cable Loss
Table representing loss of Coax Cables in db per 100ft.
Votes: 4 | Rating: 4.75
- Coaxial antennas
G3TXQ study on coaxial cable demonstrate that it can reduce an element s length by ...
Votes: 1 | Rating: 10
- Coaxial Transmitting Chokes
Understanding Common Mode and Differential Mode Currents on Transmission Lines by K9YC
- Common-Mode Noise
Receiving Common Mode Noise shows how lack of a balun can contribute to system noise ...
Votes: 4 | Rating: 8.5
- Conductors for HF Antennas
Putting up an antenna for the low bands What kind of wire will you use ...
Votes: 4 | Rating: 9.25
- Construction Principles for UHF VHF Yagis
The Construction Principles for Duoband-Yagis 2m/70cm by DK7ZB
Votes: 6 | Rating: 5.33
- Crossed Field Antenna
The Crossed Field Antenna CFA is one of the applications of Correction of Maxwell s ...
By Dr. Fathi Kabbary
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Votes: 5 | Rating: 2.8
- Cubical Quad Antenna
Let s explore the cubical quad antenna or quad and see what it really is ...
Votes: 3 | Rating: 1.33
- Currents in Standing-Wave Antennas
How can the current flowing out of the top of a mobile loading coil be ...
By W5DXP
- Designing Driven Elements in Yagi antennas
The design and feeding of driven elements for VHF UHF Yagi antennas modeling observations and ...
By G8MBI
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Votes: 2 | Rating: 6
- Designing Vertical Aerials
If you want to design vertical antennas you can find all theory and formulas used ...
By GW6ITJ
- Detuning a Tower from a vertical antenna
It is possible to detune the tower so that at least on one band the ...
- Dipole Height
How High should my Dipole be Dipole Antennas and the effect of height above ground ...
By AA3RL
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Votes: 25 | Rating: 5.57
- Dipoles and Vs at correct height
Dipoles at the correct height are not only stealthy antennas, they work great
By N3FJP
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Votes: 2 | Rating: 8
- Dipoles versus Verticals
One of the classic arguments in amateur radio is whether a dipole or vertical is ...
- Directional arrays
About collinear array antennas
- Do You Need an Antenna Tuner
Maybe yes maybe no It all depends on the type of antenna and feed line ...
Votes: 12 | Rating: 4.58
- DXpedition Antennas for salt water locations
Which is better a 20m antenna for an island DXpedition Yagi at 25 or a ...
- Effect of size and height on flag RX Antennas
Analysis of flag receiving antennas using MININEC with focus on relation of size and atenna ...
- Effects of Very Large Ground Screens
A theoretical and experimental study of the effects of very large ground screens on 20 ...
- Electrically Small Antennas 2016
An antenna system is electrically small if it s enclosing sphere is 955 2 960 ...
By M0RZF
- Elevation Angles
Importance of elevation angles on long distance communications and relation of reception probability with the ...
By ON9CVD
- Errante's capacitive RF Grounding
This system demonstrates that no galvanic coupling to earth is needed for a proper RF ...
By Francesco Errante
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Votes: 1 | Rating: 10
- EZNEC simulation files
EZNEC Simulation files collection by DF9CY
Votes: 4 | Rating: 7
- Feeder Radiation
Connecting centre fed antennas dipoles yagis rhombics loops to coaxial cable unless care is taken ...
Votes: 4 | Rating: 8
- Folded Dipoles in Yagi Uda Antennas
A folded dipole is an antenna with two conductors connected on both sides and folded ...
Votes: 2 | Rating: 4.5
- From Transmitter to Antenna
A collection of articles on the subject of impedance impedance matching and high frequency power ...
- G3SEK's Amateur Radio Technical Notebook
A lot of good informations concerning antennas, filters, moonbounce, and circuitry data.
Votes: 23 | Rating: 4.69
- Ground / Radial Systems
Guide to ground mounting antennas notes on efficiency elevated installations metal towers and masts other ...
By Bencher
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Votes: 1 | Rating: 10
- Ground Loss and Vertical Antennas
How manage and quantify ground loss in vertically-polarized antennas by VE3VN
- Ground Problems
Collection of articles about ground systems
Votes: 2 | Rating: 8.5
- Ground Systems as a Factor in Antenna Efficiency
A classic document originally presented in Proceedings of the Institute of Radio Engineers in 1937 ...
By Brown Lewis Epstein
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Votes: 1 | Rating: 1
- Ground systems for DXpeditions
An article bu N6LF on ground systems for multi-band verticals over saltwater
- Grounding system
Perhaps one of the most over looked aspects of setting up a listening post is ...
Votes: 12 | Rating: 4.66
- Groundplane Antennas at Various Heights
Mounting on Roof or at Ground Level Why ground plane antenna works better at lower ...
By DF3LP
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Votes: 3 | Rating: 10
- Groundplane Antennas at Various Heights
Mounting on roof at the right ground level can greately impact on antenna performances because ...
By DF3LP
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Votes: 3 | Rating: 6
- Harmonic Operation of OCFs - Theory
Up, Up, and Away or Harmonic Operation of OCFs
- Height versus take off angle
One of the most important factor for DXers although many are not aware of this ...
By DX-Antennas.com
- HF Aerial Design
A novel approach to aerial evaluation with diagrams and graphs by G3CWI
Votes: 11 | Rating: 7.27
- HF Antennas 101
Here are 10 tips and truisms that every ham should know about antennas by W20QI ...
- HF insulation, the pitfalls
Although insulation may seem relatively insignificant in the larger picture on it depends the quality ...
- HF loops vs Half Loops
HF loop and half-loop antennas in a few words
- Home-made antennas by we6w
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Various types of antennas by we6w
Votes: 65 | Rating: 6.07
- Horizontal Antennas above Real Ground
Antennas are influenced by the effect of the ground and by the type of conductors ...
- Horizontal Half-wave Dipole above a Counterpoise
All antennas that are situated close to the ground are affected by that ground to ...
- How does antenna height affect VHF communications
How to calculate range for a VHF antenna with a simple formula and how to ...
By KB9VBR
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Votes: 2 | Rating: 9
- How to Construct a Dipole
Basic and illustrated article on building wire dipole antennas This page is about how to ...
Votes: 20 | Rating: 6.55
- How's Your SWR?
Chart showing how SWR effects how much power you actually radiate from your antenna ...
Votes: 1 | Rating: 7
- Human Body Resonance Frequencies
Wondering whether human body could be used as an antenna.
Votes: 1 | Rating: 10
- Hybrid Antennas
Antennas that use a combination of vertical and horizontal polarisation.
Votes: 2 | Rating: 6.5
- Idiot's guide to antennas
A very basic guide to antennas concept Explain the usage of dummy load basic antennas ...
Votes: 1 | Rating: 10
- Importance of noise reduction in wires antennas
An old post by John Doty about effects of noise in longwire antenna.
- Improve your Antennas for Low Solar Activity
How to improve your transmitting antennas for very low solar activity periods vertically polarized 160 ...
By CTU
- Indoor Random Wire versus Indoor Magnetic Loop
Comparison of performance between an indoor random wire versus a magnetic loop using psk31 ...
Votes: 2 | Rating: 7
- Integrated Publishing Basics
Radio wave propagation, Principles of transmission lines, Antennas