Dual 9-Element 2.5 Lambda EME Yagi Array

By DD0VF

This project describes a high-performance EME antenna array consisting of two home-designed 9-element Yagis, each about 2.5 wavelengths long, combined into a 25-ohm system and matched to 100 ohms using 9/4λ sections of 50-ohm coax. The array supports rotatable polarity from 0° to 180°, allowing both horizontal and vertical polarization to optimize moonbounce performance under varying conditions. Despite operating for years without a balun—something another designer called “disastrous”—the system has delivered strong results, including copying very weak DX such as VK3KH at about -25 dB with only 120 W (around 2 kW ERP). The builder continues to refine the mechanics, having installed new gear motors and an upgraded follow-up control system in 2011.

Hits: 1 | Votes: 0 | Rating: 0.00

Resource Details

You will find this resource in just one category on our links directory.

Antennas/Array

The title of the main category is Array and it deals mainly with Array Antennas Directory - DXZONE.com . The link to this resource has been on our site since Sunday Dec 14 2025, and it has been followed 1 times. So far no one has rated it yet. Be the first to rate it!
Last updated: 2025-12-14

Rate this resource

no one has rated it yet. Be the first to rate it!

The scale is 1 - 10, with 1 being poor and 10 being excellent.

Webmaster, add a Remote rating

Link not working?

Occasionally, links may expire, move, or become outdated. If you've encountered a problem, kindly Report it here. We'll promptly look into the issue and update the link if possible. We appreciate your feedback!

More Like This

If this particular resource doesn't quite meet your needs, don't worry! In the same category, you'll find several other links that may be equally interesting and relevant to what you're looking for. We encourage you to explore these additional options, as they might offer the insights or information you're seeking.