Sigma - 4:1 Unun
The Sigma 4:1 Unun is an 1 kW upgrade for the Sigma SE X80 and SE HF360 antenna. The grey wire is for the radiating element and the black wire must be connected to the antenna bracket.
* 1kW power rating is for intermittent amateur radio use (CW or PEP) for data modes (FT-x, RTTY, etc) or constant carrier data modes a lower maximum of 200 Watts is recommended.
* If you are using a high-power amplifier it is essential that an external ATU is used between the antenna and the amplifier, otherwise damage may occur.
- Suitable for: Sigma SE HF360 / Sigma SE X-80