Loading-Coil

4 года назад

This video showcases the Comet HFJ-350M telescopic antenna, which covers 80 meters through 10 meters on HF and also adds 6 meters VHF. The video focuses on the 160-meter base adapter, which can be purchased separately or as part of a complete package. The video provides a brief overview of the antenna's features and specifications, including its operating frequency range, maximum input power, and impedance.

7 месяцев назад

This video reviews the Recon 40, a high-performance portable HF antenna coil from Rez Antennas. The reviewer highlights the antenna's durability, ease of use, and wide bandwidth, showcasing its performance on various bands. They also discuss the antenna's construction and features, including the weatherproof design and the included whip and tripod.

7 месяцев назад

This video demonstrates how to shorten wire antennas using loading coils. The presenter explains how to calculate the required inductance for a loading coil and provides tips for building one. They also discuss how the placement of the loading coil affects the antenna's performance and how it can be used to tune for multiple bands.

1 год назад

This video demonstrates how to use an 80m coil on an MC-750 to enhance HF communication. The process involves adjusting the length of the whip antenna using a VNA to achieve a desired SWR between 3.5 and 3.9 MHz. The video provides step-by-step instructions and tips for achieving optimal performance.