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and unclipping part of the antenna. You get no-compromise dipole performance on all design bands. It works well for casual portable operation provided you don't need to change bands instantly. Phil Salas, AD5X, has built a portable antenna that is longer, lighter, and more compact (when disassembled) than his original antenna published in a 2002 QST article. It is also easier to build, and easier to find parts for. Band coverage is also increased to include 60 Meters, as well as 40 through 10 Meters!
These and other bands can be covered with a wire of this length with a small antenna coupler. For further details see Sometimes you're desperate to get on air. You leave that all-important antenna wire at home. Or you feel like doing things the 'hard way'. I believe the data is inconclusive. The only criteria I suggest is that your random wire should be at least 50 feet or greater than ½ wavelength at the lowest frequency you plan to use. The goal is to get enough copper in the air to send and receive a decent signal. My portable antenna is somewhere around 75 feet (I don’t know exactly) and works great from 40 to 10. It became clear that to get what I want, it would need to be a DIY project. The criteria was straightforward:
Triband end-fed wire antenna
antenna coupling unit. These show that driven element length isn't very critical provided you've sorted out the impedance matching.
The videos shows it being used on a beach or pier. It's a half wavelength on 14 MHz but the antenna coupler allows operation on When you demand nothing but the best in quality, versatility, and performance, Chameleon Antenna is your clear choice. Our antennas surpass all others, ensuring seamless communication with those who matter most to you. With exceptional durability and adaptability, our antennas provide crystal-clear communication in even the harshest and most remote locations. Count on Chameleon Antenna for reliable communication solutions that truly make a difference. horizontal and vertical polarisation by moving the feedpoint. As you might expect, and as the theory books tell us, vertical is superior for longer distances. Apologies to everyone. The absolutely essential feedline choke is not an inherent part of the antenna design. Schiller’s Bravo and this design assume you will provide this as part of the feed system. quad) loop but didn't. Instead I went for a rectangle that is 2/3 wavelength wide and 1/3 wavelength high. Why? The squashed shape makes it even easier to erect withAlex has been an active ham for over 50 years and especially enjoys portable outdoor operation on HF bands. The random wire antenna has been around as long as radio itself; what I am going to show you here is by no means a brilliant new invention. The basic design is the same as it was 100+ years ago.
Do you want to make a simple HF antenna using nothing but coax? Well today at the 2021 YouTubers Hamfest, I speak with Tim G5TM as he shares his experiences on building HF antennas, running portable, mobile and the fun to be had during the Sporadic E season. For all the choices, it’s surprisingly hard to find a portable antenna for HF that is affordable and practical. A portable antenna does not have to be an epic quest. In this article I’ll discuss a few options and then give detailed instructions on how to make a super-easy, super-cheap HF antenna-to-go that really works.Super Antenna TM1 Low Profile Tripod SuperMount is a compact small collapsible portable antenna tripod with coaxial mount made by Super Antenna Systems Corp. An end-fed half wavelength wire and small coupler is my default portable antenna if I just want to take the minimum. Wire length isn't that Compact, lightweight, and easily assembled in either a horizontal, “V” shape or ground-plane configuration. Each band tunes independently of the others. other bands without needing to trim the antenna wire. Of course it then ceases to be a half wavelength on these other bands; on 7 MHz it's a 1/4 wavelength, 10 MHz 1/3 wavelength,
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