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We recently found some good information about random wire lengths that you should and should not use. Jack, VE3EED, hopefully has solved a major headache we all have when we attempt to go thru the trial and error and frustration with getting the random wire to work where WE want it to work.
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Random Wire Antenna Lengths. A so-called random wire antenna is an end fed antenna. As typically installed, it is a compromise antenna but great for portable use because it is easy to pack and easy to install.
19 sty 2017 · I want to use an end-fed wire antenna, but what would be the best length of wire for the 20m and 40m bands? Is there a way to work this out? This is assuming a tuner will be used.
The Single Wire End Fed Antenna is probably the simplest antenna to use. But when you start looking around, you find that no one can agree on what length to use. Some say any length will work, some stress odd multiples of 1/4 wavelength, while others lean toward even multiples of 1/2 wavelengths.
The W1SFR End Fed 35’ Random Wire Antenna with 9:1 UnUn. What is a random wire antenna and how does it work? The term “random” infers that you can use any length of wire you want as an antenna, while that basic fact is true, there are some practical considerations.
An end-fed wire often seems like the simplest type of antenna, but getting it to work well is actually rather complex. The primary issues are: The impedance varies over a very wide range, depending on the length in wavelengths. It requires some sort of ground connection to work.
The "Best" Random Wire Antenna Lengths. Randon wire lengths you should and should not use! One single wire, no solder connections, very simple.... all the way from the tuner to the end support. That's it in a nutshell..... or is it?
