iff antenna

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iff antenna

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  • The Ultimate Guide to 11 Meter CB Antennas  pop - This site is dedicated to bringing true information about the different types of antennas you can use, buy and build for Citizen Band Radio and 11 Meter DXing.
    [ Hits: 22971 | Votes: 69 | Rating: 6.90 ]
  • 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: 1455 | Votes: 1 | Rating: 8.00 ]
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: 4778 | Votes: 1 | Rating: 5.00 ]
Antennas : Indoor 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: 7690 | 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: 29934 | Votes: 82 | Rating: 5.90 ]
  • Pfeiffer Quads - The Pfeiffer Quad was described in QST and has the desirable feature that it is smaller than a standard cubic quad but does not compromise performance very much. The Pfeiffer design is rather difficult to construct because of the complicated linear loading networks required.
    [ Hits: 2878 | Votes: 2 | Rating: 5.50 ]
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: 14499 | 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: 824 | Votes: 3 | Rating: 4.33 ]
  • Antenna Polarization notes - Antenna polarization is a very important consideration when choosing and installing an antenna. Most communications systems use either vertical, horizontal or circular polarization. Knowing the difference between polarizations and how to maximize their benefit is very important to the antenna user.
    [ Hits: 2252 | Votes: 4 | Rating: 3.50 ]
  • Amateur Radio Antennas: Ground Theory - Perfect ground vs. poor ground. What is the difference? How does the ground influence the DX-gain?
    [ Hits: 6299 | Votes: 0 | Rating: 0.00 ]
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: 1216 | Votes: 3 | Rating: 7.00 ]
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: 2526 | Votes: 0 | Rating: 0.00 ]
CB Radio : References
  • The Ultimate Guide to 11 Meter CB Antennas  pop - This site is dedicated to bringing true information about the different types of antennas you can use, buy and build for Citizen Band Radio and 11 Meter DXing.
    [ Hits: 21636 | Votes: 83 | Rating: 7.97 ]
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: 509 | Votes: 0 | Rating: 0.00 ]
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: 5555 | Votes: 14 | Rating: 6.64 ]
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: 7897 | Votes: 6 | Rating: 4.83 ]
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: 10097 | Votes: 9 | Rating: 6.44 ]
Software : Antenna analysis
  • XLZIZL by AC6LA - XLZIZL is an Excel application that analyzes the components of an antenna feed system, including transmission lines, stubs, baluns, and tuners. Calculations include impedance transforms, SWR and reflection coefficient, power loss, voltage and current standing waves, stress on tuner components, network attenuation (S21), and return loss Analysis results are available in worksheet format and in five different chart formats, including Smith charts.
    [ Hits: 1383 | Votes: 2 | Rating: 1.50 ]
Software : Linux
  • SuperNEC antenna simulation  updated - Hybrid Method of Moment (MoM) and Geometric Theory of Diffraction (GTD) program. Matlab based GUI interface. Genetic optimizer included. Windows/Linux versions.
    [ Hits: 8350 | Votes: 24 | Rating: 4.99 ]
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