BEGINNER

CHOOSING AN ANTENNA

WHICH ANTENNA
IS RIGHT FOR ME?

Dipole, inverted-V, end-fed, vertical or random wire: quick answers and a side-by-side comparison.

There’s no single best portable antenna. The right one depends on where you’ll set up, how many bands you want and how much fuss you’ll put up with. Start with the quick answers.

The Quick Answers

I have a tree or a mastHang an inverted-V dipole, or an end-fed half-wave, from the one support.
I’m in an open field with no treesUse a vertical whip with radials, or put a dipole’s center on a mast.
I want several bands with little fussAn end-fed half-wave or a linked dipole. Both are light and quick.
I want every band from one wireA doublet with ladder line and a tuner. See ladder line & doublets.
I’m on 2 m or 70 cmGet it high. A roll-up J-pole in a tree beats any rubber duck. See VHF/UHF antennas.
I’m brand newBuild a single-band 20-meter dipole. It’s cheap, it works, and it teaches you why antennas behave the way they do.

Side-by-Side

ANTENNABANDSNEEDSGOOD FOR
Dipole / inverted-VOne band (more with links)One or two supports. No tuner in most cases.Beginners, reliable performance.
Linked dipole3–5 bands, set by linksSame supports, plus a link change per band.Multiband without a tuner.
End-fed half-waveThe fundamental and its harmonics (e.g. 40/20/15/10)A 49:1 (or 64:1) transformer, a short counterpoise, and one support.Fast, light setups.
Vertical whipMany, by changing length (coils for the low bands)A base mount and radials. No tall support.Open areas, quick band changes.
Random wire + 9:1 ununWide range, with a tunerA tuner and a counterpoise.Flexibility. The least predictable of the group.
Doublet + ladder lineAlmost all (e.g. 88 ft: 80–10 m)A tuner and a balun or balanced tuner. Keep the line away from metal.Every band from one wire.
Delta loopOne band (more with a tuner)One tall pole. A 75 Ω matching section or 2:1.Quiet receive, low-angle DX from one pole.
J-pole / Slim Jim (VHF/UHF)2 m or 70 cmA tree or a mast. No radials.Camp, home and SOTA on FM.
Receive-only (LoG)160–40 m receiveSpace on the ground and a way to switch.Hearing through low-band noise.

Rough guides only. Your height, ground and surroundings change what works best.

Getting It Up: Supports

  • A telescoping fiberglass mast gives you a dependable support anywhere, even in an open field. Many portable operators carry one.
  • A throw line and weight helps you get a rope over a branch without climbing. Never throw toward people, or toward power lines.
  • Trees are free supports, but check the park’s rules first. Protect the bark and don’t damage the tree. Stakes may be restricted too, so ask.

Feedline Basics

  • Keep coax as short as practical. Every foot costs a little signal, more at higher frequencies. The KPC calculator shows the loss for your cable.
  • Add a common-mode choke or 1:1 current balun at the feedpoint of a dipole to keep RF off the outside of the coax.
  • Run the cable where nobody will trip on it.

Don’t Skip the Measuring

Whichever antenna you choose, check it with an analyzer or SWR meter before you start calling CQ. SWR Basics explains what the numbers mean and what to do when they’re high.

BEFORE YOU RAISE ANYTHINGLook up. Stay far from power lines. Read the safety page.

73 from KPC — Pick One, Put It Up, and Get on the Air!

Get Outside. Get On The Air.

KENTUCKY PORTABLE CLUB

ALL ANTENNA GUIDES →
KPC tools and guides are planning aids, not official sources. We make mistakes. Do your own research and check official maps. KPC is an independent ham radio club, not part of Parks on the Air®, SOTA or WWFF.