The Aerial 51 Model 404‑UL is an ultra‑lightweight, high‑efficiency asymmetrical dipole designed for serious portable HF operation. Covering 7 or 8 HF bands, it delivers excellent performance using extremely light yet durable materials, making it ideal for SOTA, IOTA, field work, emergency comms, and antenna‑restricted locations.

Constructed from CQ‑534 insulated copper‑clad steel wire, the radiator has a 1mm outer diameter, weighs only 31g, and still provides a 10kg breaking strength with minimal wind load. All hardware is stainless steel for long‑term reliability.

The included 12m lightweight coax (only 185g) offers impressively low losses — <1 dB on 40m and <2 dB on 10m. The ultra‑light matching unit not only provides a proper match to the coax but also delivers excellent common‑mode suppression, ensuring stable, efficient operation.

When paired with Spiderbeam fibreglass poles (12/18/26m), the 404‑UL becomes a true BIG GUN portable antenna, offering outstanding performance with minimal weight.

Key Features / Specifications

• Type: Ultra‑lightweight asymmetrical dipole

• Bands: 40m (optional 30m), 20m, 17m, 15m, 12m, 10m, 6m

• Maximum Power: 200W

• Radiator Wire: CQ‑534 insulated CCS, 1mm OD, 31g, 10kg breaking strength

• Hardware: Stainless steel

• Coax: 12m lightweight feedline (185g), low loss (<1 dB on 40m, <2 dB on 10m)

• Matching Unit: Ultra‑lightweight, high choking resistance, excellent CMC suppression

• Ideal For: Portable HF, SOTA, IOTA, camping, hiking, biking, emergency comms, restricted‑space installations