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All you need for a random wire antenna is some wire, your tuner, one or more supports up as high as you can get them to string the wire from the supports to the tuner, at least one or two insulators and a little time.
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The graph below shows lengths to avoid for different collections of bands. The fewer bands, the fewer high impedance regions to avoid. You also want the antenna to be at least 1/4 wavelength long for each band you plan to use. For instance, to work 40m be sure the antenna is at least 10m or 33' long.
All you need for a random wire antenna is some wire, your tuner, one or more supports up as high as you can get them to string the wire from the supports to the tuner, at least one or two insulators and a little time.
27 sie 2024 · All you need for a random wire antenna is some wire, your tuner, one or more supports up as high as you can get them to string the wire from the supports to the tuner, at least one or two insulators and a little time.
There are ideal lengths that have been mathematically determined to be best for random wires. Here they are: 29 35 41 58 71 84 107 119 148 203 347 407 423. I have chosen 35’ as the standard length for my antennas, but you can experiment.
9 lis 2023 · You can see a table with wire lenghts to avoid and another line in green beginning with "REVISED:" for good random wire lengths. It is also known, that very long random wires do not always give better results. As you can see, a 29' or 35.5' random wire is best.
Flexibility in length: The length of a random wire antenna can be easily adjusted to match the desired frequency range. By changing the length of the wire, the antenna’s resonant frequency can be tuned to optimize its performance for specific frequencies or bands.
