For some strange reason, I decided I did not have enough pain in my life, so I went looking through technical articles about vertical antenna systems. I wanted a practical answer to a straightforward question: how much does the ground matter, and could a home-station vertical use elevated radials without turning the backyard into a low-budget spiderweb?
The simplified answer is that the return path matters a great deal. A quarter-wave vertical is not merely a vertical wire with a coax connector attached. It needs a return path for RF current, and the quality of that path has a large effect on how much transmitter power reaches the atmosphere instead of warming the soil.
Four wires, the ground, and the usual compromise
A common portable arrangement is a quarter-wave vertical with four wires laid on the ground as radials or a counterpoise. That arrangement is simple, light, and easy to deploy. It also leaves the soil heavily involved in the antenna system. The wires provide a return path, but some RF current still works through lossy earth near the feed point.
That is why a 100-watt radio and a vertical with only a few ground-mounted radials can sometimes behave more like a very enthusiastic QRP station with an inflated résumé. Contacts can certainly be made, but part of the power is busy heating the earth rather than becoming useful radiation.
More ground-mounted radials generally improve things. A system with many evenly spread radials—DX Commander-style installations may use 32 or more—is a meaningful improvement over just a few wires. But the soil remains part of the return path, so the system still interacts with moisture, ground conductivity, obstacles, and whatever else the yard decides to contribute.
What changes when the radials are elevated
An elevated radial system raises both the vertical antenna’s feed point and its radial wires above the ground. The radials are then tuned conductors, acting more like the missing half of a dipole than like wires spread across the soil. Done well, this greatly reduces ground loss and can make a small radial count perform surprisingly well.
The catch—because antennas are never allowed to be too easy—is that elevated radials must be designed and tuned. They are not just any convenient length of wire found in the garage. For a single-band system, the usual starting point is radials close to an electrical quarter wavelength for the band, then adjustment of the complete antenna in its final location.
Why symmetry matters
Textbook drawings show a vertical with a clean, round pattern. A real yard is less cooperative. Trees, buildings, vehicles, fences, poles, and even nearby wire can detune the system. If the radials are uneven, too close to the ground, or strongly affected on one side, the radiation pattern can become lopsided—stronger in some directions and weaker in others.
Research on optimized elevated-radial systems commonly points to roughly 10 to 12 tuned radials per band and an overall antenna/radial-hub height of about 10 feet as a practical target for reducing ground interaction and unwanted coupling. That is a useful engineering target, not a universal requirement or a magic force field: it reduces those effects rather than eliminating them, and a real installation still has to contend with its own trees, buildings, wire, and general backyard mischief.
For that reason, the practical target is simple: keep the radials as equal as possible, spread them evenly around the feed point, keep their ends at a similar height, and keep them clear of conductive objects. The higher and more symmetric they are, the less the soil gets a vote.
The home-station plan
For a multiband vertical covering roughly 20 through 10 meters, I am not trying to reproduce a laboratory installation with ten or twelve tuned radials. That would be excellent engineering, but it is not necessarily practical around a house, trees, gardens, pets, and people who prefer not to meet a wire at face level.
The working compromise is four elevated radials, designed around the lowest band—20 meters. That provides a useful counterpoise for the vertical, reduces ground loss, and gives the higher bands a sensible foundation. It will not produce exactly the same impedance or pattern on every band, because multiband is antenna language for “it depends,” but it is a manageable and effective place to start.
Build priorities for Part 1
- Raise the feed point and radial hub above the grass; every bit of separation helps, and around 8 to 10 feet is a practical home-station target when the area can be kept safe.
- Use four radials of equal starting length, laid out symmetrically. For a 20-meter-centered starting point, quarter-wave wires are roughly 16.5 to 17 feet before final trimming.
- Keep radial ends reasonably level and taut. Avoid trees, fences, gutters, and metal structures that can pull one radial out of balance.
- Use a capable feed-line choke at the feed point so the coax shield does not become an accidental fifth radial.
- Tune and measure the finished antenna in place. Radial length, vertical length, height, soil, and nearby objects all interact.
The practical takeaway
A modest ground-mounted radial system can work just fine. More radials generally reduce loss, and radial wires about a quarter wavelength long at the lowest operating frequency are a good starting point. But a properly made elevated system gives the return current conductors rather than soil to work with.
For a home-station multiband vertical, four balanced elevated radials are a sensible compromise: practical enough to build, capable of working very well, and much less likely to collect ticks, ants, mud, and every tiny creature that believes an antenna installation is a new public park.
Part 2 will cover the actual wire layout, support height, starting lengths, feed-line choke, and the tuning sequence once this system goes from a very respectable drawing to a real object in the yard.
A small nod to Antenna Claus
Amateur radio has its own antenna Santa Claus: Greg Mihran, KJ6ER—at least in my book. His practical elevated-radial designs, including the PERformer (Portable Elevated Radials), demonstrate that a well-arranged elevated system does not have to be very high to be useful. It is not entirely free of ground coupling, because low antennas still know the earth is down there, but it can be much more efficient than simply dropping counterpoise wires into the grass.
I own one, use it regularly, and genuinely enjoy it. It is one of the few antenna projects that has not been torn down, tossed into a closet, and rediscovered three years later beside a mystery coax adapter and half a roll of electrical tape.
References, Well Sort Of
I did have some references, but because I paid for them, they are not listed here. Smokey decided to eat them as well. In other words, my dog ate my homework—except Smokey is not actually my dog.