oop magnetic

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oop magnetic

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Antennas : Magnetic Loop
  • A More Efficient Magnetic Loop Antenna - The idea behind this antenna was to use multiple conductors in parallel to reduce the resistance losses in the antenna , and thereby improve the efficiency.For a given magnetic loop antenna, doubling the number of conductors from one to two will typically increase efficiency by about a factor of two. There is a limit, and beyond three or four conductors further increases are small, and may not be worth the bother.
    [ Hits: 212 | Votes: 2 | Rating: 5.5 ]
  • Magnetic Loop 600 KHz-4MHz - The antenna is built on a cross-shaped frame with spar width (and height) of 48 inches, providing a height of 52 inches and a width of 49 inches. This antenna costs only about $45 to construct and can be built in just a few hours using simple hand tools. The best part is that the performance on 160M and 80M is excellent
    [ Hits: 172 | Votes: 3 | Rating: 4.33 ]
  • K1FM Mini Magnetic Loop - Original HF magnetic loop antenna designed by the author to work in conjunction with QRP transceivers like the FT-817 in portable operations. In this configuration the loop can operate from 30 to 10 meters. Using a two spires radiator of the same diameter it also covers 40 meters.
    [ Hits: 116 | Votes: 1 | Rating: 8 ]
  • Outdoor 80m/40m bands Magnetic loop antenna - No matching adjustments needed. Directly perfect match to 50 Ohms using a remotely switched wideband transformer
    [ Hits: 225 | Votes: 0 | Rating: 0 ]
  • Magnetic Loop Antenna Builds and Autotuning Advancements - Explore two magnetic loop antenna constructions, utilizing a 6-foot and a 12-foot square loop. Accompanied by a detailed description, the 6-foot loop features a built-in stepper motor control circuit, while the 12-foot loop incorporates a separate loop controller. Efficiency, tuning ranges, and the innovative autotuning solution using a microcontroller are discussed, offering insights into overcoming the antenna's narrowband limitations.
    [ Hits: 66 | Votes: 0 | Rating: 0 ]
  • Mastering Magnetic Loop Antenna Control - Unveil the secrets of efficient Magnetic Loop Antenna control systems, eliminating the hassle of frequent retuning. With real-time tracking and compatibility with various transceivers, including popular models from Elecraft, ICOM, Kenwood, and Yaesu, this controller ensures seamless frequency adjustment. Explore its high-resolution stepper motor and versatile communication capabilities, revolutionizing amateur radio operation.
    [ Hits: 54 | Votes: 0 | Rating: 0 ]
  • Automatic Magnetic Antenna Tuner - A Magnetic Loop Antenna is a resonant circuit employing a large inductor and adjustable capacitor. Efficiency depends on the inductor's size relative to wavelength. A Magnetic Loop Controller adjusts antenna tuning in real-time, syncing with Transceiver VFO movements. It communicates with various radios, enabling seamless tuning. Stepper motor resolution ensures accurate capacitor positioning, crucial for antenna performance. The Controller's firmware offers diverse functionality, enhancing user experience and antenna efficiency.
    [ Hits: 58 | Votes: 0 | Rating: 0 ]

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