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Homemade Antennas: Simple Projects

The “Fishing Pole” Antenna (Rybakov): The Miracle of Homebrewing

If you ask an amateur radio operator which is the most versatile antenna you can build for very little money, the answer will often be the same: the Rybakov. Originally designed by IV3SBE, this non-resonant vertical antenna has become a favourite among portable operators and those with limited roof space.

The “Fishing Pole” Antenna (Rybakov): One of the Most Popular Homebrew Projects

If you are an amateur radio operator interested in homebrewing, you have probably come across this name many times: the Rybakov antenna. Commonly known in Italy as the “Fishing Pole” antenna, this project is undoubtedly one of the most searched-for and replicated designs on the web.

But what makes it so popular? It is not the highest-performance antenna ever designed, nor the most efficient. Its strength lies in the perfect balance between construction simplicity, low cost — just a few tens of euros — and remarkable versatility.

It is an ideal antenna for operators with limited roof space, for those who enjoy portable operations such as SOTA A programme where people transmit from mountain tops. and POTA A programme where people transmit from nature parks., or for anyone who wants to experiment with the HF Shortwave, between 3 and 30 MHz, which can reach the other side of the world. bands without spending a fortune.

The Basic Concept: A Non-Resonant Vertical

Unlike a dipole A simple antenna made of two equal arms, one on each side. cut for a specific frequency The “channel” a station transmits on., the “Fishing Pole” antenna is a broadband non-resonant vertical.

In simple terms, it consists of an electrical wire approximately 9.60 metres long — a commonly used length for operation from 80 metres to 10 metres — supported by an ordinary fibreglass fishing pole.

Why a “Fishing Pole”?

  • It is inexpensive: a 7- or 10-metre fibreglass fishing pole costs much less than an aluminium mast.
  • It is lightweight and portable: it can be collapsed and transported easily.
  • It is discreet: once installed, its visual impact is minimal.
  • Important: it must be made of fibreglass, not carbon fibre. Carbon fibre is conductive and can affect the antenna’s behaviour.

The Technical Heart: The 4:1 UNUN Transformer

Because the antenna is not resonant, it can present a relatively high impedance A measure of how well the antenna, cable and radio pass the signal to each other. to the transceiver A radio that can both receive and transmit., making efficient transmission difficult.

To solve this problem, a 4:1 unun An adapter between antenna and cable, similar to a balun. impedance transformer — Unbalanced to Unbalanced — is installed at the base of the antenna.

This component can easily be built at home by winding a few turns of bifilar wire around a ferrite A ring of special material that blocks interference on cables. toroid, for example an Amidon FT-240-43 or T-200.

The transformer reduces the antenna impedance to a value that can be handled more easily by the transceiver’s automatic antenna tuner A box that “matches” the antenna to the radio when they don’t quite get along..

Free Resources for Homebrewing

The Internet is full of variations of this project. Below are some of the most authoritative and detailed free resources for building your Rybakov antenna, including diagrams for the 4:1 unun An adapter between antenna and cable, similar to a balun.. The links open the original external resources. Radio Meteo

ResourceWhat You Will Find
m0ukd.com – Rybakov 80m–6mOne of the clearest and most accurate visual guides, with detailed photos of the UNUN and practical installation. (Resource in English)
IW2EN – Antenna SpecialistAn Italian-language technical guide focused on building the 4:1 UNUN for this antenna, including instrumental tests. (Resource in Italian)
IV3SBE – The Original ProjectThe historical page of the Italian designer associated with the Rybakov project, where it all began. (Resource in Italian)

Conclusions: Why the Rybakov Is Still the Queen of Homebrewing

At a time when commercial antennas can cost hundreds of euros, the Rybakov — or Fishing Pole antenna — represents the very essence of amateur radio: achieving excellent results through ingenuity and a handful of inexpensive materials.

Despite its extreme simplicity, this antenna can allow you to make surprising DX A contact with a very distant station. contacts, especially when installed in open areas free from obstacles or close to the sea.

Whether you are a beginner looking for your first HF Shortwave, between 3 and 30 MHz, which can reach the other side of the world. antenna or an experienced operator who needs a quick, lightweight solution for holidays or portable operations, the “Fishing Pole” remains an extremely attractive option.

Expert tip: pay particular attention to protecting the unun An adapter between antenna and cable, similar to a balun. transformer from weather conditions, and do not underestimate the importance of a good counterpoise or radial system. These small technical details can make the difference between an antenna that mostly receives noise and one that performs effectively on the air.

Are you ready to transmit?

Find a fishing pole, wind your toroid and send your signal out into the world.

Good DX!

Sources and Credits: This article is based on open-source documentation and experiences shared by the international and Italian amateur radio communities, including M0UKD, IW2EN and IV3SBE. Radio Meteo

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