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low frequency antenna

low frequency antenna

16 links about low frequency antenna on dxzone.com

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Antennas
  • Constructing a LowFER Antenna - This article describes the antenna for Low Frequency Beacon. It originally appeared in the "Lowdown" for Oct. 1999.
    [ Hits: 1210 | Votes: 2 | Rating: 5.50 ]
  • Tenna Dipper Kit - The "Tenna Dipper" is a low power antenna analyzer and ATU tuning aid. With this handy accessory, you can determine the 50 Ohm resonance frequency of antennas or you can adjust your antenna tuner for a 50 Ohm match without generating QRM
    [ Hits: 3652 | Votes: 3 | Rating: 4.00 ]
Antennas : Delta loop Antennas : Dipole
  • T2FD, The Forgotten Antenna - The terminated. tilted, folded dipole T2FD is a little known antenna that performs excellently. Compact in size compared to a half­-wave dipole the T2FD provides signal gain, wide frequency coverage, and exceptionally low noise characteristics.
    [ Hits: 4475 | Votes: 3 | Rating: 8.33 ]
Antennas : Feed Lines
  • Build An LF Antenna Analyzer - A Portable Low Frequency Antenna Analyzer, For those of us who like to play with antennas on the ham bands, one of the handiest tools to have around the shack is an "antenna analyzer". These gadgets combine a signal generator and standing-wave ratio (SWR) sensor in a small battery-powered unit.
    [ Hits: 4077 | Votes: 2 | Rating: 5.00 ]
Antennas : Magnetic Loop
  • Magnetic Loop Antenna Calculator  updated - Windows program to calculate magnetic antennas, allow to calculate capacitance and voltage based on Loop circumference, desired resonant frequency, conductor diameter and the operating power by KI6GD
    [ Hits: 528 | Votes: 7 | Rating: 6.57 ]
Antennas : Receiving
  • Remotely-tuned loop antenna for LW and MW - This article describes how to build a loop antenna for low frequency (LF) and medium wave (MW) reception with remote-controlled tuning. The antenna is extremely sensitive and can be built mostly from parts from old radios and tape recorders. Like all loop antennas, it is highly directional, which allows you to null out unwanted noise sources.
    [ Hits: 2583 | Votes: 1 | Rating: 1.00 ]
Antennas : Spiral
  • Petlowany Antennas by K6NO - WorldRadio Article on Petlowany antennas base on this principle: if a length of wire is wound into a spiral-shaped coil and excited by a radio frequency current connected to the innermost portion of the coil, it will then, and only then, exhibit RF characteristics that closely approximate those of a resonant linear wire of the same length
    [ Hits: 2781 | Votes: 8 | Rating: 6.75 ]
Antennas : Theory
  • Azimuth Radiation Patterns - Below VHF the change in the radiation characteristics of an antenna will change considerably from frequency to frequency, making antenna selection more complicated.
    [ Hits: 612 | Votes: 1 | Rating: 10.00 ]
  • Earth Systems - In order to resonate at a particular frequency, an antenna needs to be at least one half wave length long. Antennas below a 1/2 wave are dependent on a ground system for resonance as well.
    [ Hits: 858 | Votes: 1 | Rating: 3.00 ]
Antennas : Towers
  • KC1XX Contest Station - Amateur Radio Station owned by Matt Strelow. The station is designed for competition in the multi-operator multi-transmitter category of high-frequency DX contests. Running with 7 towers 6 rotators, 8 beverage listening antennas, and 4 spotting verticals
    [ Hits: 1452 | Votes: 2 | Rating: 6.50 ]
Antennas : Vertical
  • Quarter Wave with radials - VHF quarter wave antenna mainly for scanner usage, The quarter wave antenna is an easily designed and constructed antenna for whatever frequency you want, although with the following design, you may to limit it to the VHF and UHF bands due to the physical size.
    [ Hits: 7208 | Votes: 5 | Rating: 7.20 ]
Antennas : Windom
  • The FD4 (FD3) Windom Antenna  pop - The 4-band Fritzel model FD4 is a special version of a Windom antenna. It is a half-wave long on the lowest frequency, and is fed from a coax cable through a transformer inserted in the wire at one-third from one end
    [ Hits: 46776 | Votes: 76 | Rating: 5.55 ]
Manufacturers : Amplifiers
  • SSB Electronic USA - manufactures and distributes HF, VHF, UHF and SHF equipment covering 10MHz. - 47.0GHz. Our products include: Wireless LAN / WAN Bidirectional Linear Amplifiers, Low Noise Preamplifiers - LNA's, RF Linear Amplifiers, Relays, Transverter Systems, Frequency Translation Systems, Downconverters, Antennas, Parabolic Dishes, Coaxial Cable, Relays, Antenna Switches, Microwave Test equipment, PC controlled Receivers, Microwave Linear Amplifiers including models for Telemetry, Wireless, and CDMA applications.
    [ Hits: 7259 | Votes: 5 | Rating: 7.00 ]
Manufacturers : Antennas : HF
  • Valcom Fibreglass Whip Antennas - Manufacturer of Fibreglass Whip Antennas, Low and mediun Frequency, HF and VHF Antennas Specialized in the design and manufacturing of a full range of Beacon (MF), AM Broadcasting 540 - 1700 KHz, HF 1.7 to 30 MHz, VHF 30 to 156 MHz and UHF 200 to 500 MHz antennas.
    [ Hits: 2918 | Votes: 2 | Rating: 8.00 ]
Manufacturers : Antennas : Marine
  • LF antennas - Welcome to our line of Low Frequency, Natural Radio Research, Broadcast, Marine and Shortwave products. Our evolving product line is the result of our dedicated research efforts primarily in the areas of LF, VLF, MF, and HF.
    [ Hits: 79 | Votes: 0 | Rating: 0.00 ]
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