A trap dipole antenna is designed to operate on multiple frequency bands by incorporating traps that act as high-impedance elements at specific frequencies. This particular trap dipole is constructed for 80m, 40m, 20m, 15m, and 10m bands and has a total length of 36m. It features a sealed balun and a PL connector, allowing a maximum power load of 1000 W SSB/CW (300 W at 40m).

The antenna has a 1/4λ transformer that ensures resonance on various bands, including 80m, 40m, 20m, and 15m. Additionally, a short cable between the transformer and the trap acts as capacitance, achieving resonances at 15m and 10m frequencies. This design allows for efficient operation across multiple bands with the convenience of a single antenna structure.

Compared to a conventional W3DZZ antenna operating on 14 MHz, the trap dipole offers the advantage of resonance on additional bands such as 80m and 10m. By utilizing traps and a transformer, this antenna design provides versatility and performance for amateur radio operators looking to communicate effectively across a wide range of HF frequencies.