df antenna

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df antenna

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Antennas : 2M
  • 5 Element, 2 Meter Yagi Antenna - Five- Element, 2 Meter Yagi for around $20. This antenna is easy on your wallet and easy to build!
    [ Hits: 1976 | Votes: 6 | Rating: 4.50 ]
Antennas : 40M : 40 meter Delta Loop Antennas
  • 40-10 Delta Loop Antenna - A multi band inverted delta loop antenna project that can be used from 40 to 10 meters band with full details and analysis of antenna performances on each band, document includes EZNec reports and setup pictures
    [ Hits: 8367 | Votes: 13 | Rating: 7.76 ]
  • 2 element Delta Loop for 40m - A hand made project by I5CDF of a 2 elements Delta Loop antenna for the 40 meters band in Italian
    [ Hits: 1415 | Votes: 5 | Rating: 5.00 ]
Antennas : 40M : 40 meter Yagi Antennas Antennas : 80M
  • A Space Saving 80 meter antenna - Extending the NB6Zep wire Antenna for the 80 meters band by adding coils and improving ground
    [ Hits: 764 | Votes: 0 | Rating: 0.00 ]
  • Phased Delta Loops - An interesting article with many technical details on a phased delta loop array for 80 meters band includes pictures of antenna relays
    [ Hits: 1135 | Votes: 3 | Rating: 10.00 ]
Antennas : Delta loop
  • Vertical Delta Loops - A excellent 31 pages presentation of how to build and setup vertical delta loops, giving attantion to performance, loop shape or optimal feeding point, includes many pictures and comparison vs dipoles or monopole antennas
    [ Hits: 846 | Votes: 1 | Rating: 10.00 ]
Antennas : Dipole
  • Vertical Dipole Array - A simple and awesome wire monoband antenna, very usefull for portable and dxpeditions usage, consist of two elements, a driver and the reflector. This endfed halfwave gives a very low take off angle and is very suited for chasing DX.
    [ Hits: 861 | Votes: 1 | Rating: 8.00 ]
Antennas : End-Fed
  • End Fed Long Wire Antenna - The antenna is an inexpensive, multiband, end fed HF antenna. It has a matching network consisting of a toroid core and an antenna lead of 30
    [ Hits: 1658 | Votes: 1 | Rating: 1.00 ]
Antennas : Log Periodic
  • Practical HF Log Periodic Antennas - This QST article describes the electrical and mechanical design process for two LPs that cover the HF bands from 10-30 MHz
    [ Hits: 511 | Votes: 0 | Rating: 0.00 ]
Antennas : Multiband
  • 5 Band Telescopic Vertical Antenna - 5 Band 1/4 wave Telescopic Antenna. The 20m to 10m, antenna is simple and cheap to make, and has a performance that matches commercial antennas but at cost considerably lower. The design was purposely based on a telescoping fibre glass fishing rod as this allows it to be easily stowed away in the car.
    [ Hits: 2163 | Votes: 2 | Rating: 9.50 ]
Antennas : NVIS
  • NVIS Antenna Design - A presentation on designing Near-Vertical Incidence Skywave (NVIS) antennas and all related EZNEC models in a single zip file or the single presentation in PDF File
    [ Hits: 234 | Votes: 1 | Rating: 9.00 ]
Antennas : OCF
  • OCF Dipole - This is a popular antenna design as the performance is very good across the HF bands and requires little or no tuning. It is a dipole fed off center with a 4:1 current balun at the offset feedpoint. The antenna shown covers 80, 40, 20 and 10 meters with 15 meters and WARC bands
    [ Hits: 1421 | Votes: 2 | Rating: 9.00 ]
Antennas : Theory
  • All About Antennas - A free five part series on antennas that covers many aspects of antennas, from radio wave propagation, to feed lines, type of antennas, connectors, adaptors and antenna switches by Bob Grove, publisher of Monitoring Times
    [ Hits: 698 | Votes: 3 | Rating: 7.50 ]
Antennas : W3DZZ
  • A Low Cost Multi Band - W3DZZ trapped multi-band antenna, exposed in this practical wireless article
    [ Hits: 1159 | Votes: 2 | Rating: 9.00 ]
  • W3DZZ Multi-band Antenna 80-40-20-15-10m - A multiband antenna that can work from 80 to 10 meters in this illustrated docuemnt by G8ODE
    [ Hits: 1652 | Votes: 2 | Rating: 7.50 ]
Antennas : Windom
  • A Winning Antenna - An article published on QRP Expressions on August 2005 about the Original Windom a slight evolution of the known off-center fed antenna, considered by the author the perfect antenna for QRP operations
    [ Hits: 472 | Votes: 0 | Rating: 0.00 ]
Operating Aids : Beginner's Guides
  • HF Antennas for Beginners - 30 Meters and Below - An interesting article for beginners that guide new hams to find what kind of antenna to install, evaluating wire aerials, commercial verticals and how to setup antennas in restricted lots
    [ Hits: 485 | Votes: 0 | Rating: 0.00 ]
Radio Equipment : HF YAGI Antennas : Cushcraft MA5B
  • MA5B Manual - Cushcraft MA5B 20 / 17 / 15 / 12 / 10 Meter Beam Antenna assembly and installation manual
    [ Hits: 224 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Antenna Launcher
  • Antenna Wire Launcher - This project is to build an Antenna Wire Launcher (Spud Gun). It is constructed from PVC pipe and has a manual release. The device will send a puck over 100 trees without much work.
    [ Hits: 1065 | Votes: 0 | Rating: 0.00 ]
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