LDG Balun & Unun Collection

Antennas · Owned

LDG’s matching transformers. Per the LDG datasheet Matthew photographed alongside them:

• RU-4:1 — matches vertical and end-fed antennas to an LDG automatic tuner; can also work standalone on resonant verticals
• RU-9:1 — for high-impedance end-fed long wires
• RU-1:1 — a common-mode choke for coax-fed antennas
• RBA 1:1 / RBA 4:1 — baluns for balanced feed (dipoles, ladder line)

Owner’s Manual

Available from the manufacturer: ldgelectronics.com

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