DX Engineering TWIG QRP 1:1 Choke Baluns were engineered as the key component for building a low power (QRP) dipole antenna. Ideal for use during outdoor adventures such as POTA® or SOTA, or any portable operation. The TWIG incorporates a 1:1 transformer to keep the feedline impedance of the half-wave element wire down to 50-ohms. The connector is a BNC female and matches up with the recommended coax and most low power (QRP) transceivers. When properly installed and the element wire is accurately tuned, the system can achieve an SWR below 2:1 without the need for an external antenna tuner, reducing the amount of extra equipment required. The TWIG 1:1 is rated for 25W SSB, 10W CW, and 5W digital.

Included Parts:

• 1x DXE-TWIG 1:1 Choke Balun

• 2x End Insulators

• 3x Clips

Dipole Antenna Construction Overview

Use the components listed below to construct a dipole antenna for the band of your choice. Refer to the wire‑length chart provided for the appropriate element lengths. The antenna may be installed in various configurations, and final wire lengths will vary slightly depending on the installation and location.

Recommended Materials (Not Included)

- Element Wire: CEW‑VIZ24‑YEL100 — 24AWG tinned stranded copper with high‑visibility yellow PVC insulation; also available in additional colors.

- Coaxial Cable: DXE‑174VDB035 — 35ft. RG‑174 with orange PVC jacket and BNC male connectors. (A coax length between 25 and 35 feet is recommended.)

- Support Rope: 3/16in. small‑diameter Mastrant® rope.

- Storage & Handling Accessories: DXE winders and Bongo Tie combinations—ideal for neatly winding and securing wire and coax.

Tools and Equipment Needed (Not included):

• Wire Cutters

• Tape measure

• 3/16in. Rope

• Electrical Tape

• Antenna Analyzer, for tuning the element wire length to the desired band