DX Engineering HF QRP Bandpass Filters are designed to tightly confine both transmitted and receive signals to one specific Amateur band, these filters significantly reduce out‑of‑band noise, resulting in a noticeably lower noise floor and improved weak‑signal reception.

In multi‑operator contest or portable operations, they deliver the essential isolation needed to eliminate image and harmonic interference, ensuring clean mono‑band performance even in close‑quarters environments. Each filter features a sharp roll‑off just outside the band edges, providing exceptional rejection of adjacent‑band signals and maintaining maximum operating efficiency for QRP applications.

Offered for the 80, 40, 20, 15, and 10-meter amateur bands, they install easily in line with the coax feedline using the BNC connectors provided on each end. With power ratings of 20 watts SSB and 5 watts digital, they are ideal for QRP enthusiasts participating in multi‑operator events such as Field Day, POTA, and SOTA.

Additional Features and Specifications:

• Power Rating: 20W SSB, 5W Digital

• Connectors: BNC Female on both ends

• Models Available: 80, 40, 20, 15, and 10 meters