antenna performance

169 links

Multiband Cubical Quads - EI7BA Multiband Cubical Quads projects, includes two elements quad antennas for 10 12 15 17 20 meters band. Performance considerations, detailed pictures and construction notes.
[ Hits: 7915 | Votes: 5 | Rating: 9.4 ]
Petlowany Three-Band Burner Antenna - The Petlowany Three-Band Burner is a simple, low-cost, trapless short vertical antenna which amazingly works on three HF bands (20, 15 and 10 meters). This web page contains pictures, performance data, and enough construction details so you can homebrew your own.
[ Hits: 6059 | Votes: 5 | Rating: 7.2 ]

W7AV 40 Meter Half Square - These antennas offer big gun DX performance on the low bands, yet they are surprisingly simple to build. Try one- you will like it!
[ Hits: 4048 | Votes: 4 | Rating: 6.25 ]

Portable Magnetic Loop Antenna Version 2 - A simple multi-band magnetic loop antenna designed for 20, 30 and 40 metres. For its size, the performance of the antenna always astounds me, although it is never going to replace a Yagi
[ Hits: 5349 | Votes: 1 | Rating: 10 ]

Echelon-Log Beverages - About beverage antennas, Enhanced F/B Beverages, Bandwidth of Directivity, arrays. This article describes two phasing systems for Beverage antennas that improve directivity and cancel rearward signals. These systems use lossy elements and require minimal components to achieve broadband performance.
[ Hits: 1860 | Votes: 1 | Rating: 10 ]

Rotatable Dipole for 40m-6m - This article describes a simple, inexpensive, dipole antenna that will rival the performance of a ten-meter beam.
[ Hits: 4842 | Votes: 8 | Rating: 8.25 ]

13 cm Helix Antenna ^pop - Here is the design of a 2.4 GHz antenna that is ideal for amateur satellite communications. This antenna is easy to assemble because the design itself tolerates inaccuracies in the construction without really affecting performance.
[ Hits: 65539 | Votes: 90 | Rating: 6.04 ]

The DBJ-1 VHF-UHF Dual Band J-Pole - Searching for an inexpensive, high performance dual band base antenna for VHF and UHF ? Build a simple antenna that uses a single feed line for less than $10.
[ Hits: 6293 | Votes: 5 | Rating: 6 ]

Magnetic loop for 30-10 M - A light and portable magnetic loop antenna with improved bandwidth and performance by HB9MTN
[ Hits: 1720 | Votes: 0 | Rating: 0 ]
Hula Hoop Loop antenna - The concept of the "Hula Loop" came after many years of building medium wave loops of varying size, shape and performance. Usually these loops are constructed on a square wooden frame, with wire being wrapped around the periphery
[ Hits: 2738 | Votes: 3 | Rating: 5.33 ]
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: 13717 | Votes: 41 | Rating: 6 ]

X-Beam antennas - Two element X-Beam is a high-performance broad-band antenna that is ideal for Ham radio operators with limited space. X-Beams are inexpensive and easy to build. The performance of the simple X-beam is amazingly similar to larger, more conventional antennas by 4S7NR
[ Hits: 4041 | Votes: 11 | Rating: 7.46 ]

G/T Simulations - by VE7BQH - Here you will find information on how antennas behave when stacked G/T is an important figure-of-merit for the antenna's overall receive performance, because it balances forward gain (G) against received thermal noise (T).
[ Hits: 849 | Votes: 8 | Rating: 7.87 ]
Antenna Gain on Trial - Most people think it's a good thing to have and the more the better. However, this is not always true - and the amount of gain is often not what it appears to be. Assuming higher gain is what you need, how do you determine what will give the best performance?
[ Hits: 972 | Votes: 2 | Rating: 5.5 ]

TrapDip - This program let you design and performance of 2-band trapped dipole antennas including trap design.
[ Hits: 4307 | Votes: 4 | Rating: 3.25 ]

High Performance Wire Antennas - Popularity doesn't guarantee high antenna performance, disadvantages of trap antennas
[ Hits: 2858 | Votes: 1 | Rating: 10 ]
D3 Antenna for Field Day - D3+ High Performance Antennas for Field Day. This article describes versatile broadband wire antennas. These antennas will double your effective radiated power over a dipole, will be easy and inexpensive to build and install, and will be simple to match.
[ Hits: 2644 | Votes: 7 | Rating: 4.86 ]

RF HAMDESIGN - An engineering oriented organization specializing in the design and manufacture of high performance parabolic antennas, 3dB high power RF couplers, Antenna power splitters, directional RF couplers and more items for RF transmission from HF through Microwave frequencies.
[ Hits: 1616 | Votes: 5 | Rating: 9 ]

Kiwa Electronics - Kiwa Electronics is a company that specializes in accessory equipment for the radio enthusiast. Our products include Filter Modules to improve receiver performance, a High Performance Medium Wave Air Core Loop Antenna for improved broadcast band reception, the Pocket Loop Antenna, the Earth Monitor, BCB Rejection Filter and Broadband and SW Preamps. We also offer numerous performance upgrades for popular receivers.
[ Hits: 3067 | Votes: 5 | Rating: 8.8 ]

TANT 136 - DOS program for calculating the performance of a T antenna. Gives loading coil info and matching plus ERP by Reg G4FGQ
[ Hits: 531 | Votes: 2 | Rating: 2.5 ]