iff antenna

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iff antenna

86 links

Antennas : Array
  • Building an own Stackmatch - Nowdays lots of people are putting up antennas to either beam in different directions at the same time or just to stack them and get a lower angle of radiation. Use this stackmatch to match you array.
    [ Hits: 1619 | Votes: 1 | Rating: 8 ]
Antennas : Bazooka
  • Coax Dipole Calculator - An efficient program to calculate dimensions of coax dipoles, or bazooka antennas considering velocity length of different coax cables. Express dimensions in feet/inch and meters/cm. Freeware by VE3SQB
    [ Hits: 17567 | Votes: 74 | Rating: 5.31 ]
Antennas : G5RV
  • The G5RV patterns - G5RV detailed antenna patterns and 3D plots setting it up as inverted V with a different angle, compared to horizontal way.
    [ Hits: 4928 | Votes: 1 | Rating: 5 ]
Antennas : Indoor Antennas : Maria Maluca
  • Maria Maluca Antenna by PY2BBP - The Maria Maluca HF multiband antenna as designed in 1957 by PY2BBP is a directive antenna for 15 meter and a passive element that works as director and reflector in different bands
    [ Hits: 340 | Votes: 1 | Rating: 10 ]
Antennas : Mobile
  • Effective HF Mobile Antennas - Effective HF Mobile Antennas Keith WB2VUO, explains difficulties on gaining antennas efficiency on lower bands with mobile antennas.
    [ Hits: 7912 | Votes: 4 | Rating: 6.75 ]
Antennas : Quad
  • Cubical Quad Antenna Design  pop - By N6VNG, can be used to determine the element lengths and the gamma match values for different frequencies, includes link to excel files with formulas to dimension your quad antenna.
    [ Hits: 30799 | Votes: 88 | Rating: 5.74 ]
Antennas : Shortwave
  • Build your first dipole - The dipole antenna is an easily designed and made antenna usually used on HF, although can be (and sometimes is) made for VHF and UHF antennas, and in varying forms is also used as part of different designs of antennas i.e. as the driven element for directional antennas.
    [ Hits: 14809 | Votes: 14 | Rating: 6.93 ]
Antennas : Theory
  • Quad or Loop antenna - Information about quad and loop antennas, matching tips, differences on polarization and impedence by PA0FRI
    [ Hits: 918 | Votes: 3 | Rating: 4.33 ]
  • Amateur Radio Antennas: Ground Theory - Perfect ground vs. poor ground. What is the difference? How does the ground influence the DX-gain?
    [ Hits: 6680 | Votes: 0 | Rating: 0 ]
  • Another way to look at vertical antennas - What iss the difference between a dipole and a vertical? Maybe not as much as you think. Come along and try another point of view.
    [ Hits: 4045 | Votes: 0 | Rating: 0 ]
Antennas : Theory : Antenna Gain
  • CSVHFS Antenna Gain Measurements - The Central States VHF Society has conducted Antenna Gain Measurements since its inception in 1967. Comparisons between commercial and homebrew antennas, between different homebrew designs, and between different commercial designs. Mostly VHF UHF and up antennas.
    [ Hits: 1333 | Votes: 3 | Rating: 7 ]
Antennas : WiFi
  • Building the WiFi parabolic antenna - Building a Bell ExpressVu satellite dish with a waveguide coffee can cantenna feed, and a Netgear USB Rangemax wifi card (WPN111).
    [ Hits: 14144 | Votes: 24 | Rating: 8.17 ]
Antennas : ZS6BKW
  • ZS6BKW Multiband antenna system - ZS6BKW optimized version of the venerable G5RV and different antenna placement on the roof and terrace by N4SPP
    [ Hits: 3200 | Votes: 5 | Rating: 4.6 ]
Ham Radio : Clubs : Contest Clubs
  • P3A - Russian contest team - On this page you will find information about previous, current and future operations of our contest team, different articles, links and info about contesting, DXing, contests calendar, propagation, antennas, equipment, awards, and much more.
    [ Hits: 558 | Votes: 0 | Rating: 0 ]
Operating Modes : Longwave
  • Antenna Noise and Signal Cancelling at LF - The fact that the phasing between a wanted signal and an unwanted signal can be different on different antennas is put to advantage. With this condition, the unwanted signal can be cancelled out by controlling amplitude and phase. The heart of the system is some form of phase control circuitry.
    [ Hits: 627 | Votes: 0 | Rating: 0 ]
Operating Modes : Satellites : Weather Satellite
  • Quadrifilar helicoidal antenna - Design your own quadrifilar helix, the site even generates a drilling pattern in a PDF file. Several different construction methods are shown.
    [ Hits: 6077 | Votes: 16 | Rating: 6.87 ]
Operating Modes : Stealth Amateur Radio
  • HF Antennas for restricted space - Arrl document about invisible antennas and indoor systems. It is important to consider that few compromise antennas are capable of delivering the performance one can expect from the full-size variety. But the patient and skillful operator can often do as well as some fellows who are equipped with high power and full-size antennas. The "cliff-dweller" may not be able to "bore a hole" in the band as often, and as easily, but DX can be worked successfully when band conditions are suitable.
    [ Hits: 9188 | Votes: 7 | Rating: 5.28 ]
  • G4ILO Stealth Amateur Radio - If you are a ham and live in a modern urban or suburban development, putting up a highly visible antenna may make it difficult to stay friends with your neighbours.
    [ Hits: 1561 | Votes: 2 | Rating: 10 ]
Radio Scanning : Beginner's guides
  • Guide to scanning antennas - How to select an antenna for scanning. This is a Readers Digest version of antennas, meant to give new users some idea of the different antennas and their good and bad points.
    [ Hits: 10457 | Votes: 11 | Rating: 6.09 ]

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