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Sigma LW20

SKU: SE LW20
€ 81,95
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1-3 Business Days

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About this product

The Sigma LW-20 HF 80-6m wire antenna is a versatile and powerful antenna for radio amateurs, suitable for use on all HF bands from 80m to 6m with an external ATU. The antenna uses a 9:1 UNUN to convert the impedance from 450 Ohms to the 50 Ohms expected by your transceiver, ensuring efficient signal transmission and reducing static noise. With easy installation, flexible mounting options, and 400W of power for intermittent use, the Sigma LW-20 provides a reliable solution for HF communications over a wide frequency range.

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The Sigma LW-20 HF wire antenna is a versatile solution for radio amateurs operating on all HF bands from 80m to 6m with an external antenna tuner. The heart of this antenna is the 9:1 UNUN, which converts the impedance from approximately 450 Ohms to the 50 Ohms expected by your transceiver. This ensures efficient signal transmission and reduces static noise.

Features and installation

  • Easy Installation: The UNUN is equipped with a SO-239 connector for the coaxial feed line and two screw terminals with wing nuts. One terminal is for the antenna wire and the other for a ground wire. Although grounding is not strictly necessary, it helps to reduce static build-up and lightning strikes.
  • Flexible Mounting: Mount the feed point as high as possible, such as on a pole or wall, and mount the other end of the wire as far away as possible. The wire can be mounted in a straight line or in different shapes to fit the available space.

Comments

  • Power Rating: For intermittent amateur use only (400W CW or 500W SSB). For continuous data modes a maximum power of 200W is recommended. For AM transmission use a more powerful balun is required.
  • External ATU: When using a high power amplifier, an external antenna tuner between the antenna and the amplifier is essential to prevent damage.

The Sigma LW-20 provides a reliable and efficient solution for HF communications over a wide frequency range, with easy installation and robust performance



 


Sigma LW20 draadantennes met 9:1 UNUN voor 80m-6m banden
Sigma Euro-Comm

Sigma LW20

€ 81,95

The Sigma LW-20 HF wire antenna is a versatile solution for radio amateurs operating on all HF bands from 80m to 6m with an external antenna tuner. The heart of this antenna is the 9:1 UNUN, which converts the impedance from approximately 450 Ohms to the 50 Ohms expected by your transceiver. This ensures efficient signal transmission and reduces static noise.

Features and installation

Comments

The Sigma LW-20 provides a reliable and efficient solution for HF communications over a wide frequency range, with easy installation and robust performance



 


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