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EAntenna 40m Bazooka Antenna Review
An on the field comparison with the GAP Titan DX Since the GAP Titan DX did not completely satisfied me completely on 40 meters band, last summer I decided that the time to test some alternatives had...
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2.4 GHz Cubical Quad Antenna
2.4 GHz Cubical Quad Antenna – Introduction The Cubic Quad antenna is a commonly homemade antenna in the range of about 150 odd MHz. Our little project was to design one of these for use in the 2.4GHz...
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7 element Yagi for 20 Meters band
They say if it didn’t blow down it was not big enough, this one was big enough and it did blow, not off but up and over the top of the tower like an umbrella one very windy day in January 1974. I was...
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GAP Titan DX Maintenance
I’ve installed the GAP Titan DX some years ago. Due to maintenance works on my roof, I had to put the antenna down for some weeks. Tuning GAP Titan DX This week I’ve been able to restore the antenna...
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Wonder Whip Antenna
The Wonder Whip? A £10 QRP Portable Multiband Antenna for HF, VHF and UHF A variation on the “Miracle Whip” and “Wander Wand”. The Wonder Whip Context I enjoy low power, portable operations, from...
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The gamma match
The Gamma match is the most used matching device used for yagi beams. What it does is: A Yagi almost never has an impedance of 50 ohms. In other chapters i told that Gain, bandwith, F/B etc. all...
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2m crossed yagi antenna
This 2m yagi uses design data from DK72B’s excellent yagi website. The element to boom mounting used here may be of use to some as it does not use any polamid mounting / insulating clamps at a cost of...
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Windom Antenna 10-80
A windom antenna for 10 to 80 meters band – a design by PU1LHP The post Windom Antenna 10-80 appeared first on IW5EDI Simone - Ham-Radio.
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A 40m Vertical Antenna
Let me first say I make no claims of originality for this item. It is intended as a simple, inexpensive solution for the newcomer to experiment across the 40m band (7.0–7.2MHz) when only restricted...
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The Grid Yagi
The Grid Yagi (or Grid Quad) is a high performance yagi antenna that can be built with readily obtainable inexpensive materials. Described here is a 6 element 2 meter version with a boom length of...
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Quickie Vertical
Quickie Vertical Hear I am sitting in front of the rig listening to everyone working CQ World Wide, and I don’t really have time for this, but I hear a few interesting stations on 20 meters and try to...
View ArticleAbout Loop Antennas
Loop Antennas The Principles of the Loop Antenna article was in a newsletter of the MDXC. The next three were from a talk that Mike Bates and James Dale gave to the Northland Antique Radio Club’s Radio...
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2.4 GHz Cubical Quad Antenna
2.4 GHz Cubical Quad Antenna – Introduction The Cubic Quad antenna is a commonly homemade antenna in the range of about 150 odd MHz. Our little project was to design one of these for use in the 2.4GHz...
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Antenna Basics : Directional Antennas
Directional Antennas An antenna is known as “directional” if its pattern strongly favors a certain direction. A directional works by concentrating the signal in one direction at the expense of other...
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Mobile Antennas
Mobile Antennas This is an area of hot competition among antenna manufactures. I am not going to cover how to mount your mobile antenna (Radio Shack sells everything you need to mount antennas), but...
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4 Element Yagi Building
4 Element Yagi Building This article contains discussion of all the different antenna principles previously described elsewhere on this website. A thorough reading and understanding of the other...
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Building a 4 Element Cubical Quad
Building a 4 Element Cubical Quad There are many reasons you should considering building your own antenna. First you can taylor it to the needs of your communication (local or DX and optimize it for...
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Performance Tips – Earth Ground
Earth Ground Most of us overlook the importance of hooking good earth grounds to our antennas and our radios. Some think if lightning hits, its going to do what it wants to do. Probably right!...
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Antenna Performance : Angle of Radiation
Angle of Radiation Most of us think that our antenna’s “shoot” the signal straight off the end (if its a beam), at right angles from the antenna. I have even seen some operators (mainly ones who live...
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Antenna Performance : co-phasing
Co-Phasing Co-phasing or “stacking” has long been a way to get high gain from antennas. Co-phasing involves placing two (or more!) identical antennas either side-by-side or one over top another...
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