antenna hf

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744 links - and 20 categories

Antennas : 40M
  • NVI 40 Meter Antenna Modeling - The idea of using a low mount dipole, enhanced with reflector wires directly beneath the dipole, on the ground, appears to be a very good approach to creating an NVI specific antenna for local HF operation.
    [ Hits: 2772 | Votes: 0 | Rating: 0.00 ]
Antennas : 6M Antennas : Delta loop
  • PY6CJ About Delta Loop antennas - Essential notes on building and dimensioning delta loop antennas for HF and VHF, in spanish
    [ Hits: 3772 | Votes: 0 | Rating: 0.00 ]
Antennas : Helical
  • Helical Feed Antennas - Helical antennas have long been popular in applications from VHF to microwaves requiring circular polarization, since they have the unique property of naturally providing circularly polarized radiation. Paul Wade W1GHZ
    [ Hits: 1539 | Votes: 2 | Rating: 3.00 ]
Antennas : J-Pole
  • The DBJ-2 portable J-Pole - A Portable VHF-UHF Roll-up J-pole Antennam that resonates on both bands but actually performs as a half wave radiator on both bands
    [ Hits: 3863 | Votes: 4 | Rating: 7.00 ]
Antennas : Magnetic Loop
  • Magnetic Loop Antenna FAQ - Magnetic Loop Antennas for HF common questions and answers
    [ Hits: 793 | Votes: 0 | Rating: 0.00 ]
  • HF Magnetic Loop Antenna - Local and DX contacts from tight spaces, it works from 40 to 17 meters
    [ Hits: 2209 | Votes: 2 | Rating: 7.00 ]
  • 1.8 to 21 Mhz Magnetic Loop antenna - Magnetic loops are a compromise antenna and performance will be down on a full size-wire antenna particurlarly on lower HF Bands. This article compare this magnetic loop with a full-sized wire antenna on 80 meters by VK3YE
    [ Hits: 9187 | Votes: 14 | Rating: 6.28 ]
Antennas : Multiband
  • 6-Band Windom antenna  pop - Theory and construction of a novel trapless center-loaded off-center-fed (cl-ocf) dipole or windom antenna for the 80, 40, 30, 20, 15 and 10m hf amateur radio bands
    [ Hits: 45686 | Votes: 31 | Rating: 6.32 ]
Antennas : Portable
  • Pedestrian mobile HF antenna - This antenna allow transmission and reception on all bands between 7Mhz and 28 Mhz. Similar in concept to the Miracle Whip by VK3YE
    [ Hits: 2307 | Votes: 1 | Rating: 2.00 ]
Antennas : Stealth
  • HF antenna for high rise dwellers - If you have ever tried transmitting on HF from a tall block of apartments, where it's just not possible to erect a substantial aerial system, then this article is for you by Mel G4WYW
    [ Hits: 4546 | Votes: 2 | Rating: 8.50 ]
Antennas : Theory
  • Quarter Wave Verticals - One of the most useful antennas in the repertoire is the Marconi or quarter wave grounded vertical antenna. Its invention made it possible to halve the length of antennas, simplifying communications, especially at HF and below.
    [ Hits: 1611 | Votes: 2 | Rating: 7.00 ]
Antennas : Tuners
  • The EZ-Tuner - The "EZ-Tuner" is a homebrew automatic legal-limit antenna tuner that covers all amateur HF bands from 160-10 meters. Using a T-network design and controlled by a BASIC Stamp BS2sx microcontroller, the EZ-Tuner will match at least a 16:1 VSWR for either unbalanced or balanced transmission lines.
    [ Hits: 5272 | Votes: 1 | Rating: 9.00 ]
Antennas : VHF UHF
  • Building VHF antennas - An article with notes on home-brewing a 2 meter yagi antenna, a 70 CM "potato masher" and a 70 cm yagi antenna
    [ Hits: 2637 | Votes: 0 | Rating: 0.00 ]
Antennas : Wire
  • All Band Dipole  pop - Antenna suitable for all the HF amateur bands, including the so called WARC bands by vk6ysf
    [ Hits: 16926 | Votes: 1 | Rating: 10.00 ]
Ham Radio : Blogs : Europe
  • Passion RadioAmateur 2.0 - French Blog about amateur radio and new technologies, Internet, Hyperfréquences (SHF), DX Radio et Contests, Antennas and Videos by F1JXQ
    [ Hits: 225 | Votes: 0 | Rating: 0.00 ]
Manufacturers : Antennas : HF Shopping and Services : Regional : USA
  • Wadsworthsales - Manufacturer's representative of wireless communication radio equipment, 2-way radio sales, land mobile radio sales, repeaters, duplexers, antennas, pl tone, hf, vhf and uhf data modems and LAN ethernet radio modems for commercial and amateur radio users.
    [ Hits: 350 | Votes: 0 | Rating: 0.00 ]
  • Used Radio Sales - Sell used low band, mid band and hi band vhf radios and mobile antennas. Used Radio Sales can program these radios to suit your needs.
    [ Hits: 469 | Votes: 0 | Rating: 0.00 ]
Software : Antenna analysis
  • HF Beam Calculator - A javascipt online calculator for 2 and 3 element beam antennas. Just input frequency and will diplay element dimensions and spacing. Measurements in Feet and Meters by G4VWL
    [ Hits: 2881 | Votes: 26 | Rating: 5.62 ]
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