- 50MHz Power Splitters
Splitting an antenna between two receivers or in use as the phasing harness in stacked ...
[ Hits: 3244 | 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 ...
[ Hits: 1498 | Votes: 4 | Rating: 2.5 ]
- A Modern Thermocouple Ammeter
Thermocouple ammeters are very rare these days but the job they were perfect for measuring ...
[ Hits: 2874 | Votes: 2 | Rating: 6 ]
- About trap antennas
Negatives sides of using trap antennas
[ Hits: 965 | Votes: 2 | Rating: 7 ]
- Actual Antenna SWR
Easy for calculate formula which could be a wake up call for you The SWR ...
[ Hits: 4181 | Votes: 5 | Rating: 4.8 ]
- Advanced active VLF Loop
Article on using loop antenna in very low frequencies
[ Hits: 2392 | Votes: 3 | Rating: 7 ]
- All About Antennas
- W8JHD
A free five part series on antennas that covers many aspects of antennas from radio ...
[ Hits: 1184 | Votes: 3 | Rating: 7.5 ]
- All HF Band Antennas
F6ITV consideration on HF Antennas, from trap wired anternnas, to center feed antennas.
[ Hits: 1520 | Votes: 0 | Rating: 0 ]
- Amateur Radio Antennas: Ground Theory
Perfect ground vs poor ground What is the difference How does the ground influence the ...
[ Hits: 6684 | Votes: 0 | Rating: 0 ]
- Another way to look at vertical antennas
What iss the difference between a dipole and a vertical Maybe not as much as ...
[ Hits: 4049 | Votes: 0 | Rating: 0 ]
- Antenna & Ground Help
Radials & Counterpoise
[ Hits: 788 | Votes: 1 | Rating: 1 ]
- Antenna & Mounts
Mobile antennas how to install antennas in the roof of a vehicle and how tune ...
[ Hits: 5727 | Votes: 7 | Rating: 8.57 ]
- Antenna basics
pop
Basics by From Ian C. Purdie, VK2TIP
[ Hits: 39795 | Votes: 37 | Rating: 5.13 ]
- Antenna Basics
- SM0VPO
Article designed to answer basic questions about antennas
[ Hits: 10434 | Votes: 20 | Rating: 6.35 ]
- Antenna Basics : Directional Antennas
- Scott
An article describing basic concepts of antenna radiation and in particular directional antennas like Yagi ...
[ Hits: 347 | Votes: 1 | Rating: 2 ]
- Antenna Cable Loss and SWR
Calculate Cable Loss from SWR and reverse Text file with only two simply formulas ...
[ Hits: 2193 | Votes: 4 | Rating: 4 ]
- Antenna Diversity
Single antenna with multiple polarization for diversity diveristy receivers and propagation effects on signal polarization ...
[ Hits: 411 | Votes: 0 | Rating: 0 ]
- Antenna Efficiency
K0BG article con antenna efficiency covering topics like radiation resistance coil losses and ground losses ...
[ Hits: 459 | Votes: 0 | Rating: 0 ]
- Antenna Fundamentals
Adalet wireless document on antenna basics in a four pages pdf file
[ Hits: 3105 | Votes: 1 | Rating: 3 ]
- Antenna Height Theory
Antenna mounting height the higher the better Learn how radiation pattern change and decide if ...
[ Hits: 1880 | Votes: 5 | Rating: 7.2 ]
- Antenna Measurement Theory
Introduction to Antenna Measurement by orbit /fr pdf file
[ Hits: 2044 | Votes: 0 | Rating: 0 ]
- Antenna Measurements
The electrical characteristics of an antenna that are of interest to obtain by direct measurement ...
[ Hits: 946 | Votes: 3 | Rating: 4 ]
- Antenna Measurements
- Bevelacqua
Testing of real antennas is fundamental to antenna theory The most common and desired measurements ...
[ Hits: 61 | Votes: 1 | Rating: 10 ]
- Antenna Myths
It is best not to know very much than to know a lot of things ...
[ Hits: 526 | 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 ...
[ Hits: 7909 | Votes: 6 | Rating: 4.5 ]
- Antenna resonance and bandwidth
About antenna or aerial resonance and bandwidth and the impact of RF antenna resonance and ...
[ Hits: 421 | Votes: 0 | Rating: 0 ]
- Antenna Selection Made Easy
This page will help you answer important questions about antenna selection before you talk to ...
[ Hits: 2031 | Votes: 2 | Rating: 3 ]
- Antenna Theory
A discussion of antenna theory by Paul Graham K9ERG one of the better antenna explainations ...
[ Hits: 2151 | Votes: 9 | Rating: 8 ]
- Antenna tips for the beginner
Some rules of thumb for beginners with a QRP approach by James R Duffey KK6MC ...
[ Hits: 1601 | Votes: 2 | Rating: 10 ]
- Antenna Transmatch Tips
Tips on tuning antennas using Antenna Tuning Units also called ATU This article explains the ...
[ Hits: 3313 | Votes: 5 | Rating: 6.4 ]
- Antenna-Theory.com
- Pete
A source of knowledge for learning about and understanding antennas The goal is to present ...
[ Hits: 704 | Votes: 3 | Rating: 6.67 ]
- Antennas 101
Dipoles, Doublets and Verticals by Rob May NV5E
[ Hits: 801 | Votes: 1 | Rating: 8 ]
- Antennas : theory and designs
- Thierry LOMBRY, ON4SKY
Thierry LOMBRY ON4SKY develops in several long articles all you need to know about antennas ...
[ Hits: 9214 | 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 ...
[ Hits: 23171 | Votes: 12 | Rating: 5.75 ]
- Antennas and Transmission Lines Myths
Antennas, Transmission Lines, Tuners - Myths, Mysteries and Qualifiers By Don Wilhelm W3FPR
[ Hits: 573 | Votes: 2 | Rating: 10 ]
- Antennas for 100 Pound DXpeditions
NE1RD interesting publication published online about homebrewing antennas for dx peditions or portable use ...
[ Hits: 2468 | Votes: 3 | Rating: 7.33 ]
- Antennas for Limited Spaces
In this article you can find solutions to the problem of keeping your ham radio ...
[ Hits: 588 | Votes: 1 | Rating: 1 ]
- Antennas Tech reference by K1TTT
Yagi Antennas, Antenna Materials and more.
[ Hits: 12812 | Votes: 14 | Rating: 4.94 ]
- Azimuth Radiation Patterns
Below VHF the change in the radiation characteristics of an antenna will change considerably from ...
[ Hits: 820 | Votes: 1 | Rating: 10 ]
- Balun Theory
- g4urh
pop
The word balun means balanced unbalanced it s used to adapt a balanced device to ...
[ Hits: 38167 | Votes: 33 | Rating: 6.73 ]
- Basics of antennas
The current the voltage the impedance the bandwidth the polarization and how the earth influences ...
[ Hits: 701 | Votes: 0 | Rating: 0 ]
- Better Feedline Loss Measurements with Antenna Analyzers
Various publications through the years have shown how the SWR measured on a shorted or ...
[ Hits: 1924 | Votes: 2 | Rating: 10 ]
- Choosing Wire Size for Toroidal Inductors
Measurements that show it doesn't make much difference
[ Hits: 2646 | Votes: 22 | Rating: 6.1 ]
- Coax Antennas
Amateur Radio Coaxial Antennas by G3TXQ
[ Hits: 397 | Votes: 0 | Rating: 0 ]
- Coax Cable Loss
Table representing loss of Coax Cables in db per 100ft.
[ Hits: 2230 | Votes: 4 | Rating: 4.75 ]
- Coaxial antennas
G3TXQ study on coaxial cable demonstrate that it can reduce an element s length by ...
[ Hits: 1290 | Votes: 1 | Rating: 10 ]
- Coaxial Transmitting Chokes
Understanding Common Mode and Differential Mode Currents on Transmission Lines by K9YC
[ Hits: 1102 | Votes: 0 | Rating: 0 ]
- Common-Mode Noise
Receiving Common Mode Noise shows how lack of a balun can contribute to system noise ...
[ Hits: 2085 | Votes: 4 | Rating: 8.5 ]
- Conductors for HF Antennas
Putting up an antenna for the low bands What kind of wire will you use ...
[ Hits: 2279 | Votes: 4 | Rating: 9.25 ]
- Construction Principles for UHF VHF Yagis
The Construction Principles for Duoband-Yagis 2m/70cm by DK7ZB
[ Hits: 1621 | Votes: 6 | Rating: 5.33 ]
- Crossed Field Antenna
- Dr. Fathi Kabbary
The Crossed Field Antenna CFA is one of the applications of Correction of Maxwell s ...
[ Hits: 2310 | Votes: 5 | Rating: 2.8 ]
- Cubical Quad Antenna
Let s explore the cubical quad antenna or quad and see what it really is ...
[ Hits: 1607 | Votes: 3 | Rating: 1.33 ]
- Currents in Standing-Wave Antennas
- W5DXP
How can the current flowing out of the top of a mobile loading coil be ...
[ Hits: 640 | Votes: 0 | Rating: 0 ]
- Designing Driven Elements in Yagi antennas
- G8MBI
The design and feeding of driven elements for VHF UHF Yagi antennas modeling observations and ...
[ Hits: 1133 | Votes: 2 | Rating: 6 ]
- Designing Vertical Aerials
- GW6ITJ
If you want to design vertical antennas you can find all theory and formulas used ...
[ Hits: 576 | Votes: 0 | Rating: 0 ]
- Detuning a Tower from a vertical antenna
It is possible to detune the tower so that at least on one band the ...
[ Hits: 440 | Votes: 0 | Rating: 0 ]
- Dipole Height
- AA3RL
How High should my Dipole be Dipole Antennas and the effect of height above ground ...
[ Hits: 20484 | Votes: 25 | Rating: 5.57 ]
- Dipoles and Vs at correct height
- N3FJP
Dipoles at the correct height are not only stealthy antennas, they work great
[ Hits: 746 | Votes: 2 | Rating: 8 ]
- Dipoles versus Verticals
One of the classic arguments in amateur radio is whether a dipole or vertical is ...
[ Hits: 487 | Votes: 0 | Rating: 0 ]
- Directional arrays
About collinear array antennas
[ Hits: 4385 | Votes: 0 | Rating: 0 ]
- Do You Need an Antenna Tuner
Maybe yes maybe no It all depends on the type of antenna and feed line ...
[ Hits: 22957 | 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 ...
[ Hits: 485 | Votes: 0 | Rating: 0 ]
- Effect of size and height on flag RX Antennas
Analysis of flag receiving antennas using MININEC with focus on relation of size and atenna ...
[ Hits: 242 | Votes: 0 | Rating: 0 ]
- Effects of Very Large Ground Screens
A theoretical and experimental study of the effects of very large ground screens on 20 ...
[ Hits: 468 | Votes: 0 | Rating: 0 ]
- Electrically Small Antennas 2016
- M0RZF
An antenna system is electrically small if it s enclosing sphere is 955 2 960 ...
[ Hits: 424 | Votes: 0 | Rating: 0 ]
- Elevation Angles
- ON9CVD
Importance of elevation angles on long distance communications and relation of reception probability with the ...
[ Hits: 236 | Votes: 0 | Rating: 0 ]
- Errante's capacitive RF Grounding
- Francesco Errante
This system demonstrates that no galvanic coupling to earth is needed for a proper RF ...
[ Hits: 492 | Votes: 1 | Rating: 10 ]
- EZNEC simulation files
EZNEC Simulation files collection by DF9CY
[ Hits: 888 | Votes: 4 | Rating: 7 ]
- Feeder Radiation
Connecting centre fed antennas dipoles yagis rhombics loops to coaxial cable unless care is taken ...
[ Hits: 1830 | 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 ...
[ Hits: 316 | Votes: 2 | Rating: 4.5 ]
- From Transmitter to Antenna
A collection of articles on the subject of impedance impedance matching and high frequency power ...
[ Hits: 1160 | Votes: 0 | Rating: 0 ]
- G3SEK's Amateur Radio Technical Notebook
A lot of good informations concerning antennas, filters, moonbounce, and circuitry data.
[ Hits: 4670 | Votes: 23 | Rating: 4.69 ]
- Ground / Radial Systems
- Bencher
Guide to ground mounting antennas notes on efficiency elevated installations metal towers and masts other ...
[ Hits: 1156 | Votes: 1 | Rating: 10 ]
- Ground Loss and Vertical Antennas
How manage and quantify ground loss in vertically-polarized antennas by VE3VN
[ Hits: 597 | Votes: 0 | Rating: 0 ]
- Ground Problems
Collection of articles about ground systems
[ Hits: 1267 | Votes: 2 | Rating: 8.5 ]
- Ground Systems as a Factor in Antenna Efficiency
- Brown Lewis Epstein
A classic document originally presented in Proceedings of the Institute of Radio Engineers in 1937 ...
[ Hits: 399 | Votes: 1 | Rating: 1 ]
- Ground systems for DXpeditions
An article bu N6LF on ground systems for multi-band verticals over saltwater
[ Hits: 274 | Votes: 0 | Rating: 0 ]
- Grounding system
Perhaps one of the most over looked aspects of setting up a listening post is ...
[ Hits: 13172 | Votes: 12 | Rating: 4.66 ]
- Groundplane Antennas at Various Heights
- DF3LP
Mounting on Roof or at Ground Level Why ground plane antenna works better at lower ...
[ Hits: 989 | Votes: 3 | Rating: 10 ]
- Groundplane Antennas at Various Heights
- DF3LP
Mounting on roof at the right ground level can greately impact on antenna performances because ...
[ Hits: 178 | Votes: 3 | Rating: 6 ]
- Harmonic Operation of OCFs - Theory
Up, Up, and Away or Harmonic Operation of OCFs
[ Hits: 610 | Votes: 0 | Rating: 0 ]
- Height versus take off angle
- DX-Antennas.com
One of the most important factor for DXers although many are not aware of this ...
[ Hits: 572 | Votes: 0 | Rating: 0 ]
- HF Aerial Design
A novel approach to aerial evaluation with diagrams and graphs by G3CWI
[ Hits: 3197 | Votes: 11 | Rating: 7.27 ]
- HF Antennas 101
Here are 10 tips and truisms that every ham should know about antennas by W20QI ...
[ Hits: 823 | Votes: 0 | Rating: 0 ]
- HF insulation, the pitfalls
Although insulation may seem relatively insignificant in the larger picture on it depends the quality ...
[ Hits: 540 | Votes: 0 | Rating: 0 ]
- HF loops vs Half Loops
HF loop and half-loop antennas in a few words
[ Hits: 1413 | Votes: 0 | Rating: 0 ]
- Home-made antennas by we6w
pop
Various types of antennas by we6w
[ Hits: 39448 | 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 ...
[ Hits: 603 | Votes: 0 | Rating: 0 ]
- Horizontal Half-wave Dipole above a Counterpoise
All antennas that are situated close to the ground are affected by that ground to ...
[ Hits: 1271 | Votes: 0 | Rating: 0 ]
- How does antenna height affect VHF communications
- KB9VBR
How to calculate range for a VHF antenna with a simple formula and how to ...
[ Hits: 634 | Votes: 2 | Rating: 9 ]
- How to Construct a Dipole
Basic and illustrated article on building wire dipole antennas This page is about how to ...
[ Hits: 10600 | Votes: 20 | Rating: 6.55 ]
- How's Your SWR?
Chart showing how SWR effects how much power you actually radiate from your antenna ...
[ Hits: 1006 | Votes: 1 | Rating: 7 ]
- Human Body Resonance Frequencies
Wondering whether human body could be used as an antenna.
[ Hits: 403 | Votes: 1 | Rating: 10 ]
- Hybrid Antennas
Antennas that use a combination of vertical and horizontal polarisation.
[ Hits: 4715 | 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 ...
[ Hits: 1386 | Votes: 1 | Rating: 10 ]
- Importance of noise reduction in wires antennas
An old post by John Doty about effects of noise in longwire antenna.
[ Hits: 1665 | Votes: 0 | Rating: 0 ]
- Improve your Antennas for Low Solar Activity
- CTU
How to improve your transmitting antennas for very low solar activity periods vertically polarized 160 ...
[ Hits: 425 | Votes: 0 | Rating: 0 ]
- Indoor Random Wire versus Indoor Magnetic Loop
Comparison of performance between an indoor random wire versus a magnetic loop using psk31 ...
[ Hits: 1296 | Votes: 2 | Rating: 7 ]
- Integrated Publishing Basics
Radio wave propagation, Principles of transmission lines, Antennas
[ Hits: 994 | Votes: 0 | Rating: 0 ]
- Interference Cancelling System
The use of interference signal cancellation has been around for some time The idea is ...
[ Hits: 1869 | Votes: 1 | Rating: 3 ]