j antenna

1382 links - and 21 categories

3 Element yagi for 17 meters band - 17 Meter 3 element TA33 junior mono band yagi antenna conversion project by K6TC
[ Hits: 5973 | Votes: 2 | Rating: 5.5 ]

ZR6KMD 2M Beam Antenna - This design was adapted from an article in the ARRL Handbook and built with simplicity and duplicity in mind. This antenna is a vast improvement over a standard dipole with a forward gain of around 8db with a front to back ratio of 10db.
[ Hits: 2222 | Votes: 1 | Rating: 2 ]
2 Meter Turnstile Antenna - Here are construction plans of a Turnstile antenna that can be used for space communication on the 2 meter amateur radio band. Specifically for 145.80 mHz
[ Hits: 4262 | Votes: 1 | Rating: 7 ]

Dual Loop 80 and 40 Meter - A dual loop antenna, ZZ Wave Net HF Wire Antenna Project by VE6VIS. The antenna is basically a full wave 80 meter loop on top and a 40 meter loop on the bottom all supported from a 64 foot center support
[ Hits: 25275 | Votes: 16 | Rating: 5.38 ]

Stealth Multiband Vertical ^pop - A vertical antenna for 40 and 80 meters band, using a telescoping fiberglass fishing pole.
[ Hits: 52695 | Votes: 17 | Rating: 5.59 ]

6 Meter 5/8 Wave Vertical Antenna - The G3JVL 6 Meter ground plane vertical is a compact antenna that is ideal for portable operations. If needed, it can be disassembled into a very small bundle no longer than the longest element.
[ Hits: 18935 | Votes: 11 | Rating: 6.28 ]

Baluns on Log Perodic Antennas - Some antenna manufacturers place baluns at the incorrect location in LPDA arrays. If we consider what the balun does we can see how the mistake occurs.
[ Hits: 1602 | Votes: 2 | Rating: 8.5 ]

5/8 Collinear antenna ^pop - A 5/8 wave stacked j-pole antenna plan
[ Hits: 63151 | Votes: 110 | Rating: 4.51 ]

Inverted Vee monoband antenna - This project will enable you to build a monoband long wire inverted vee with 3/4 wave length sides that will have a bit of gain
[ Hits: 2263 | Votes: 1 | Rating: 10 ]

Building A 2-meter J-Pole Antenna - Buildin a VHF Jpole antenna with detailed pictures
[ Hits: 4222 | Votes: 7 | Rating: 6 ]
Copper Cactus J pole 2 metter 70 Cm dualband - Homebrew a j-pole 2mt and 70 cm antenna project. Make it cheap. This article includes homebrewing instructions, parts lists, tools needed and printable documentation.
[ Hits: 10355 | Votes: 29 | Rating: 6.35 ]
144-430 portable j-pole antenna ^pop - A portable dual band j-pole antenna
[ Hits: 45564 | Votes: 33 | Rating: 5.49 ]

An Unusual Magnetic Antenna - This article by OK1FOU describes how to build a relatively small loop antenna which can be placed for instance at the balcony. It is especially suitable for a two band antenna covering two adjacent amateur radio bands (10/14 MHz, 14/18, etc.)
[ Hits: 3057 | Votes: 1 | Rating: 1 ]

Base Loaded 160M Half-Sloper Antenna - If you want an antenna resonoant on the 160 meters band this is a possible solution, but of course, need space.
[ Hits: 4685 | Votes: 5 | Rating: 6.2 ]

Idiot's guide to antennas - A very basic guide to antennas concept. Explain the usage of dummy load, basic antennas like dipole o j-poles.
[ Hits: 1386 | Votes: 1 | Rating: 10 ]

A remote antenna tuner - Interesting project to remotely control, using a servo control circuit, a common commercial antenna tuner by N30X
[ Hits: 11748 | Votes: 6 | Rating: 7.33 ]

Common vhf amateur radio antennas - Plans and drawings of common amateur radio antennas, like jpoles, copper cactus, super jpole, omnidirectionals and quads
[ Hits: 2102 | Votes: 2 | Rating: 9 ]
144/430 dualband J-Pole antenna - A simple and cheap dualband j-pole antenna for 144 and 430 MHz
[ Hits: 15641 | Votes: 19 | Rating: 5.31 ]

Windom Antenna - JA7KPI windom antenna page
[ Hits: 4687 | Votes: 3 | Rating: 7 ]

VP2M DXpedition to Montserrat - Seven operators from six US States will travel to the small island of Montserrat in late January of 2007 to activate that island in a most unique way. Instead of big antennas, and tons of equipment, this DXpedition will instead focus on lightweight gear and portable operations.
[ Hits: 387 | Votes: 1 | Rating: 10 ]