Antennas for 30 Meters

Antennas for 30 Meters

Antenna: 30 meters, Range: 10.1 to 10.15 MHz

Good 30 meters antennas are easy to build with nothing more than readily available materials. Since 30 meters covers the frequency range of 10.1 to 10.15 MHz you can use a few algebraic formulas to compute antenna sizes.

Getting a signal on 30 meters requires an even bigger antenna but you will find the size is still manageable as a dipole. A good many of the operators on ham radio on 30 meters use vertical antennas. However, vertical antennas for 30 meters can be cumbersome for survivalist use.

This formula: 234/f can be explained by dividing 234 by the desired frequency in megahertz which will give you the length, in feet, of a 1/4 wave antenna. This formula isn’t exact in that it assumes the radiating element is infinitely small. What this means is if the radiating element was one inch in diameter then the resonant length of the antenna would be a little shorter than the calculated one given by the formula gives you.

Using the formula above you will soon see that an antenna for 30 meters is approximately 8 feet 2 and 7/8 inches in length. This antenna measurement can be used for either a vertical antenna for 30 meters or a horizontal antenna for 30 meters.

30 meters is good DX band used mostly for nighttime operations but has some daytime capabilities. Intercontinental communications are quite common on 30 meters. There are no voice communications used on 30 meters, only Morse code (CW) and digital modes.

30 meter antenna  

Vertical Ham Radio Antennas

Vertical Ham Radio Antennas

Vertical Ham Radio Antennas love ’em or hate ’em they are still a viable antenna for use in either two-way communications or simple shortwave listening. Why the bad press for verticals? Well to be honest some verticals really aren’t all they are cracked up to be. Claims made by the designers and/or manufacturers simply don’t hold up when the antennas are put into action. Many amateur radio operators put up vertical antennas in a hurry and tend to skip important considerations set forth by the manufacturer. Once the antenna is up it naturally works in a substandard fashion and the operator generally blames the vertical antenna instead of the fashion in which it was installed.

Vertical Antenna Types

You can’t really have more than one way to erect a vertical antenna and that is in a vertical position. But there are quite a few different types of vertical antennas:

  • Base vertical antennas
  • Mobile vertical antennas
  • Portable vertical antennas
  • Wire vertical antennas
  • Towers and structures as vertical antennas

What’s Best For A Survivalist?

Someone on the move will grab their bug out bag and their emergency radio kit complete with radios and an antenna system of some sort. There are many ways to build a vertical antenna but a survivalist must think of weight and ease of assembly. The picture to the right is an example of a Vertical Ham Radio Antennasself-contained antenna system ready to travel. In this case you merely find a good location for your vertical antenna, assemble the pieces shown above, connect the feedline to your radio and you are in business.