All About Ham Radio Ladder-Line

Ladder-Line Myths

Ladder-line is a popular choice among amateur radio enthusiasts due to its low loss, even at high SWR. However, there are some common misconceptions about ladder-line that prevent many hams from using it. Let's debunk these myths:

Myth 1: "Ladder-line radiates!"

This is simply not true. Ladder-line does not radiate any more than coax if terminated in a balanced antenna. It is important to use ladder-line with a properly designed antenna to ensure efficient operation.

Myth 2: "Ladder-line interferes with electronic devices!"

Using a length of ladder-line that is not a multiple of a half-wavelength on any band can prevent interference with electronic devices. Lengths like 43 and 86 feet work well in this regard. Additionally, running ladder-line perpendicular to the antenna helps to cancel out induced current.

Myth 3: "It's too hard to work with and keep away from metal!"

G5RV/ZS6BKW Antennas - Palomar Engineers®

Working with ladder-line requires a few precautions, but it is not overly difficult. Keeping it a couple of inches away from metal surfaces, such as using stand-offs made from PVC pipe, helps prevent unwanted interaction. Ladder-line can cross metal edges but should not run parallel to metal for long distances.

Myth 4: "It's too difficult to bring into the shack!"

There are numerous waterproof methods to bring ladder-line into any shack. Special connectors and cable entry systems can ensure a secure and reliable connection.

Myth 5: "I can't buy a lightning arrestor for ladder-line!"

Building your own lightning arrestor for ladder-line is possible and straightforward. Many resources exist that provide guidance on how to construct effective lightning protection devices.

Myth 6: "Ladder-line is fragile and susceptible to wind damage!"

2m Slim-Jim Aerial using <b>Ladder</b>-<b>Line</b> | M0PZT

To prevent wind-induced oscillations and damage, it is recommended to twist windowed line about one twist for every two feet. A proper feedpoint connection with strain relief, along with using reliable 14-gauge stranded ladder-line, can provide added durability and stability.

Why Choose Ladder-Line?

If you operate an all-band dipole with a tuner in your shack, ladder-line is a must-have. Coaxial cable can suffer from high loss when operating at high SWR, which can result in losing a significant amount of power. Ladder-line minimizes these losses and ensures more efficient signal transmission.

Whether you are a seasoned amateur radio operator or a beginner, ladder-line offers several advantages that outweigh the common myths and misconceptions associated with it. By understanding the facts and implementing best practices, you can enjoy the benefits of low loss and efficient transmission with ladder-line.

About the Author

Harold Melton, KV5R, is an experienced amateur radio operator and author, specializing in technical articles and resources for fellow hams.

Disclaimer: The opinions expressed in this article are solely those of the author and do not reflect any official recommendations or endorsements from the AARC or any other organization.