7 hz antenna

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Search Results for "7 hz antenna"

231 links - and 6 categories

Antennas : 10M
  • 5 Elements 28 MHz Monobander - A 5 elements yagi antenna for 10 meters band project, plane and picture of the EF105A by YU7EF
    [ Hits: 4121 | Votes: 8 | Rating: 3.25 ]
Antennas : 15M
  • 21 mhz half wave GP Antenna - 21 mhz half wave ant -very low radiation angle - full size and light weight- all coax matching system - decoupling care to prevent low angle radiation degrade
    [ Hits: 2527 | Votes: 5 | Rating: 2.40 ]
  • 4N1SM 5 elements yagi for 15 Meters - EF155A1 21 MHz monobander antenna by YU7EF
    [ Hits: 1387 | Votes: 0 | Rating: 0.00 ]
Antennas : 2M
  • 2m VHF antennas with high gain - 2m SSB/CW-12.5 Ohm Yagis with extrem high gain and small bandwidth. These Yagis were constructed as ultra-light, portable Yagis with extrem high gain. They have small bandwidth and are working from 144,0-144,8MHz with good SWR.
    [ Hits: 7589 | Votes: 9 | Rating: 7.23 ]
  • 137 MHz QHF Quadrifilar APT Antenna  updated - This version of the 135MHz quadrifilar antenna for APT reception is an adaptation from Bill Sykes and Bob Cobey's article Taming the QFH which appeared in the March 1997 RIG magazine.
    [ Hits: 6020 | Votes: 30 | Rating: 5.34 ]
Antennas : 40M
  • W3HH antenna for 40 meters - Pictures and plan to build a wire W3HH antenna for 7 Mhz.
    [ Hits: 4767 | Votes: 11 | Rating: 7.45 ]
  • Bazooka antenna for 40 meters - A bazooka antenna project for the 7 Mhz, includes dimension for to homebrew your own bazooka for HF bands
    [ Hits: 7949 | Votes: 11 | Rating: 6.90 ]
Antennas : 4M
  • 70MHz-Yagis - Various Yagi antennas for 70 Mhz band
    [ Hits: 4830 | Votes: 14 | Rating: 6.80 ]
  • Vertical half-wave aerials for 4m - Practical designs pictures and alternative design of antennas for 70 Mhz by Ross Wilkinson G0WJR
    [ Hits: 7317 | Votes: 12 | Rating: 5.32 ]
Antennas : 6M
  • WB7PMP 4 and 7 eleemts yagi for 50 Mhz - Original drawing and design of a 4 and 7 elements yagi antenna for 50 Mhz
    [ Hits: 1338 | Votes: 6 | Rating: 4.83 ]
  • 4 el yagi for 50 Mhz - The EF0604S a 4 elements yagi antenna plan for six meters band by YU7EF
    [ Hits: 2833 | Votes: 5 | Rating: 5.20 ]
Antennas : 70cm
  • Quadrifilar Helix antenna for 436 MHz - This is an antenna that author just built. Was intend for receiving the AO-27 downlink (at 436.800 +/- doppler). It is built with right hand circular polarization, and the gain is supposed to be in the neighborhood of 3 DB.
    [ Hits: 3278 | Votes: 2 | Rating: 4.50 ]
  • 440 Mhz J-Pole Antenna plans  pop - Here is a 70cm (440 Mhz) J-Pole antenna that is inexpensive, and easy to build. Author use 1/2 inch copper pipe, and the associated fittings necessary. The dimensions aren't typical however, this is what it took to get its SWR low.
    [ Hits: 18301 | Votes: 37 | Rating: 4.91 ]
Antennas : End-Fed
  • "Halfer" End-Fed Halfwave Antenna  pop - End-Fed Half-Wave Antenna for the 7 or 10 MHZ amateur bands intended to provide a very simple to erect yet effective portable QRP antenna.
    [ Hits: 23372 | Votes: 12 | Rating: 7.75 ]
Antennas : Magnetic Loop
  • The G3BGR Magnetic Loop - This ia a home built Magnetic loop antenna which was used by G3BGR, indoors on 7,10 and 14Mhz. The basic idea was in Radcom 1986
    [ Hits: 1189 | Votes: 0 | Rating: 0.00 ]
  • HB9AGD Magnetic Loop - Pictures and antenna plan of a magneti loop antenna working in the range 6.650 7.250 Mhz in french
    [ Hits: 1426 | Votes: 0 | Rating: 0.00 ]
Antennas : Mobile
  • An automatically tuned 7-30MHz mobile antenna - This is a base-loaded vertical antenna that mounts on the car's roof. The loading coil is designed as a variable inductor, with a three-legged chariot that travels up and down inside the coil, with grooved brass wheels running on the coil turns, and driven by a slotted rotor tube.
    [ Hits: 3652 | Votes: 2 | Rating: 1.00 ]
Antennas : VHF UHF
  • 900 MHz antenna - VE3CVG's 900 MHz 7 Element Plumberís Delight Yagi Antenna
    [ Hits: 1121 | Votes: 0 | Rating: 0.00 ]
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: 7682 | Votes: 5 | Rating: 7.00 ]
Software : Weather and FAX
  • ATPDEC - Atpdec is an open source program that decodes images transmitted by POES NOAA weather satellite series. These satellites transmit continuously, among other things, medium resolution images of the earth on 137Mhz. These transmissions could be easily received with an inexpensive antenna and dedicated receiver. For more information about receiving POES satellite images consult the rig site.
    [ Hits: 2767 | Votes: 2 | Rating: 9.00 ]
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