antenna performance

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antenna performance

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Antennas : 40M : 40 meter Delta Loop Antennas
  • Delta Loop DX Antenna for 40 meters band - A monoband delta loop antenna for the 7 MHz. This vertically polarized DX Antenna is a full wavelength sngle side antenna and has a total length of 42.3 meters (137,1 inch) Can be easily setup with a flag pole or fishing pole as center top mast. For optimal performance lower side should be at 2 meter above the ground. This antenna offers a low radiation angle and 1 DB Gain.
    [ Hits: 431 | Votes: 3 | Rating: 6.33 ]
Antennas : 6M : 6 meter Yagi Antennas
  • 3 Element Yagi Antenna Plan for 6 meter - A short boom, wideband 3 element yagi antenna plan for six meters that cover the entire band with a resonable performance and a 50 Ohm SWR of less 2:1. Article appeared in QST August 2007
    [ Hits: 1291 | Votes: 0 | Rating: 0 ]
Antennas : Active
  • PA0RDT MiniWhip - When experimenting with the WellGood Loop antenna, I came across the PA0RDT MiniWhip design referenced in several places. The construction of the PA0RDT MiniWhip is simpler than the WellGood Loop since there are no inductors to wind, but during my testing, I have found the loop to have slightly better performance.
    [ Hits: 206 | Votes: 0 | Rating: 0 ]
Antennas : Beverage
  • The Single Wire Beverage Antenna - This simple beverage ntenna is easy to make, easy to setup, and it offers great RX performance.
    [ Hits: 447 | Votes: 5 | Rating: 7.4 ]
Antennas : Fan Dipole
  • Modeling an 80/40/20M Fan Dipole for DX - An interesting presentation of a real multiband Fan Dipole antenna, optimized for better DX operation performances, considering the terrain, position, DX destination path and other influencing factors
    [ Hits: 532 | Votes: 2 | Rating: 5.5 ]
Antennas : Feed Lines : Choke
  • High Performance common-mode chokes - May 2015 Radcom Article on common-mode chokes that can be used for control cables, phone lines, but mostly on typical HF antenna systems. This article explain what common mode chokes does, why you meay need one, properties common mode chokes should have, how to build and measure performances.
    [ Hits: 681 | Votes: 1 | Rating: 10 ]
Antennas : Indoor
  • Testing Dipole vs Indoor Magnetic Loop Antenna - Testing performances of indoor antenna. A comparison of a magnetic loop antenna vs a classic wire dipole done using wsprlite on 30 meters band.
    [ Hits: 855 | Votes: 2 | Rating: 5.5 ]
Antennas : OCF
  • The Off-Center-Fed Dipole Antenna - The OCFD Off-Center-Fed Dipole Antenna is an excellent multiband antenna that is relatively simple to construct, yet gets quite decent performance.
    [ Hits: 326 | Votes: 2 | Rating: 9 ]
Antennas : Receiving
  • 160 Meters 4 Square Receive Antenna - A four square array receiving antena for the top band, performance is extremely directional and space requirements are really hard to fulfill.
    [ Hits: 179 | Votes: 1 | Rating: 10 ]
Antennas : Satellite
  • EME Dish Antenna Project - A 3.2m EME dish project that provides a better performance on 1296 MHz (10+dB sun noise vs. 6dB with my 432 array) and an even better performance on 2304 MHz
    [ Hits: 344 | Votes: 0 | Rating: 0 ]
Antennas : Theory
  • The Classic Beverage Antenna Revisited - This is a QST Article published in January 1982 by W1FB D. Demaw and HH Beverage and is a complete review of the original article published in 1922, which updates and reivew the beverage antenna theory and developlment, explaining the antenna design of transformers and gives accurate reports on antenna general performance.
    [ Hits: 558 | Votes: 1 | Rating: 6 ]
Antennas : VHF UHF
  • VHF-UHF Long Boom Very High Performance Antenna Designs - Experimental Long Boom Antennas - CP, LPDA, multiband with several NEC Files for 50MHz 144MHz 222 MHz 432MHz but also 902MHz and 1296 MHz Antenna projects. Includes also for each antenna model, in a general comparison table each antenna characteristics including Directive Gain, G/T, E-F/R, H-F/R abd Boom Length. This is a great value comparison table of several commercial and home made VHF UHF antenna projects.
    [ Hits: 188 | Votes: 1 | Rating: 10 ]
  • Modifications to the Diamond V2000 and similar antennas - This kind of antenna has grown in popularity over the last years because it gives you a decent performance and triband capabilities. But its 50 MHz design is far from optimal. Here you can learn how to improve its 50 MHz performance in a very easy way.
    [ Hits: 627 | Votes: 2 | Rating: 9.5 ]
Antennas : Vertical
  • Radials on Vertical Antennas - Experimental Determination of Ground System Performance for HF Verticals
    [ Hits: 1396 | Votes: 9 | Rating: 6.67 ]
Antennas : Yagi
  • Simple Gain Antennas for the Beginner - You do not need to invest an absurd amount of money to build a beam type of antenna. Good performance can be obtained with simple antennas made from some very ordinary materials. QST article
    [ Hits: 1059 | Votes: 4 | Rating: 6.5 ]
Radio Equipment : HF Vertical Antenna
  • The MonoGap Antenna for 30m Reviewed - A review of the 30 meter MonoGap Antenna. This review covers from the unboxing go the Gap product, the assembly of the elements, the test and tuning phase and a performance report during the years
    [ Hits: 240 | Votes: 1 | Rating: 10 ]
  • Challenger DX Antenna Review by NK7Z - A review of the GAP Challenger DX Antenna that is not a traditional 1/4 wave vertical, but is a vertical dipole, this gives it several advantages over a standard 1/4 wave vertical, mainly the reduced number of radials, with excellent performances.
    [ Hits: 220 | Votes: 2 | Rating: 10 ]
Radio Equipment : HF Vertical Antenna : Maldol MFB-300
  • Maldol MFB-300 HF vertical antenna review - The Japanese-made Maldol MFB-300 HF vertical antenna offer extremely wide-band performance, with a specified frequency range of 1.0-60 MHz.
    [ Hits: 432 | Votes: 2 | Rating: 5.5 ]
Shopping and Services : Regional : Asia
  • Wuxi Venus Information Technology - Wuxi Venus Information Technology is an amateur radio devices dealer in China, source for high end, high performance RF products,Control products,APRS products and Commercial products. It provides a variety of solutions to the antennas systems, APRS,electronics kits and electronics components
    [ Hits: 178 | Votes: 0 | Rating: 0 ]
Technical Reference : Grounding
  • How to Ground an Antenna: aerial earthing - The antenna ground or earth system can be key to its operation whilst also being a key safety feature. This article is about grounding systems for antennas, covering different aspects of grounds made for antenna safety, or expressly for lightning or just to improve antenna performance, being ground an antenna component.
    [ Hits: 230 | Votes: 1 | Rating: 4 ]

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