am antenna

1468 links - and 9 categories

Slim Jim 2m Vertical - This VHF 145 MHz antenna is easy to build and with no radials. It shows equal gain of 5/8 lambda. It is light weight, you can hang it somewhere (on a tree may be) and work.
[ Hits: 3391 | Votes: 3 | Rating: 6 ]
J Beam antenna for 2 meters and up - Article by Ed Bathgate, N3SDO as published in CQ VHF Magazine July, 1988
[ Hits: 2998 | Votes: 0 | Rating: 0 ]

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: 3008 | Votes: 0 | Rating: 0 ]

K5LAD 80 meter antenna - A successful 80 meter antenna only 38 feet high on one end and 4 1/2 feet on the other
[ Hits: 783 | Votes: 0 | Rating: 0 ]
Broad Band Dipole for 80m - Mesh constructed with enamelled wire 0.5 mm diameter For installing a support (plastic rope 2 mm) is needed. Antenna used on Solomon Isl in 1995 H44/DJ9RB
[ Hits: 3936 | Votes: 2 | Rating: 2.5 ]

Magnetic Loop calculator - Magnetic loop antenna calculator and loop antenna design program for windows let you calculate dimensions for magnetic loops antennas, in german
[ Hits: 6757 | Votes: 36 | Rating: 4.61 ]

2.4 Ghz double quad antenna - An easy to build, compact antenna for wireless lan applications that offers a reasonable amount gain.
[ Hits: 2619 | Votes: 4 | Rating: 1 ]
Axial-Mode Helical Antennas - Notes on Axial-Mode Helical Antennas in Amateur Service. Helix Basics, Modeling Issues, and Short Helical Antennas Over Perfect Ground
[ Hits: 1651 | Votes: 0 | Rating: 0 ]
The normal-mode helix antenna - A helix will work in the normal mode when the diameter and pitch of the helix is less than 0.1 Lambda
[ Hits: 3054 | Votes: 7 | Rating: 5 ]

The Lindenblad antenna - The ultimate satellite Omni Antenna by Howard Sodja, W6SHP. The Lindenblad antenna consists of four half wave folded dipoles slanted 30 degrees to the horizon, oriented 90 degrees to each other in azimuth, spaced 0.3 wavelength apart
[ Hits: 3724 | Votes: 6 | Rating: 7.67 ]

Loop Antennas and Calculator ^updated - KA1FSB loop calculator give you a quick overview of the feasibility of "squeezing" a loop into your available yard or apartment space. The easy calculator yields a reasonable approximation of dimensions, to within 5% over the amateur bands, using typical wire gauges ranging from 12-18 AWG.
[ Hits: 16114 | Votes: 61 | Rating: 6.43 ]

Dave's Loop Antennas - N2DS home made loop page collection.
[ Hits: 5792 | Votes: 9 | Rating: 7.22 ]

K5OE, Introduction To Amateur Satellite Ground Station Antennas - There are many kinds of satellite antennas that will get you on the birds and allow you to have lots of fun
[ Hits: 3617 | Votes: 2 | Rating: 8 ]

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 ]

Gamma match example - A gamma match example
[ Hits: 17838 | Votes: 63 | Rating: 4.16 ]

All Band Dipole - Antenna suitable for all the HF amateur bands, including the so called WARC bands by vk6ysf
[ Hits: 18641 | Votes: 3 | Rating: 7 ]

WT4Y - Amateur Radio Blog - WT4Y Amateur Radio, stealth antennas, computerized logs, QSL card images
[ Hits: 326 | Votes: 2 | Rating: 10 ]

Micro908 Kit - A re-usable control & computing platform for antenna measurement, PSK31 digital modems, audio filtering, signal source & VFO, memory keyer by AMQRP
[ Hits: 1570 | Votes: 1 | Rating: 10 ]

Yagi-logper - Yagi-logper is a linux GPL program to model a Yagi or Log-periodic antennas with horizontal cylindrical dipoles.
[ Hits: 1686 | Votes: 3 | Rating: 7 ]

Simple anti-static device - With all the wire you have out, you may run into a problem with static buildup on the antennas. This static may try to make its way into your receiver, causing you major problems and damage that can run into a lot of money.
[ Hits: 900 | Votes: 1 | Rating: 1 ]