antennas

Line Launcher - The line launcher is a handy tool which is a must-have for anyone who uses wire antennas. It provides an easy way to mount the end of a wire antenna up into a tree. It basically consists of a fishing reel mounted to a slingshot, which is a tried & true design.

2-Element-Yagis for HF  ^{updated  pop} - 2-Element parasitic Yagis for the Shortwave-Bands 10-12-15-17-20-30m. The antennas are feeded with the DK7ZB-match. A quarter-wave choke of coax is grounded at the socket.

3 Element Yagis Antennas for HF  ^pop - All these plans use the DK7ZB match

2m VHF antennas with high gain - 2m SSB/CW-12.5 Ohm Yagis with extrem high gain and small bandwidth. These Yagis were constructed as ultra-light, portable Yagis with extrem high gain. They have small bandwidth and are working from 144,0-144,8MHz with good SWR.

70MHz-Yagis - Various Yagi antennas for 70 Mhz band

70cm yagi antennas - Pictures and plans to build 70 cm yagi antennas

Echelon-Log Beverages - About beverage antennas, Enhanced F/B Beverages, Bandwidth of Directivity, arrays

Slinky and loaded beverages - How slinky loaded beverage antennas works, includes eznec models

Shortened Center-Fed Half-Wave Dipole - Design your owm HF shiortened dipole

Use of tripods to assemble and balance big antennas - Here is a way to ease assembly and balancing of a large antenna. The elements and boom are assembled separately in most cases. Once they are all together set up 2 tripods in the assembly area and put the boom on them.

J-Pole antennas for 2m-40m - A multiband jpole antenna

NVIS - What it is and how to use it - Article on NVIS antennas By Patricia Gibbons - WA6UBE

Receiving Antenna Design - Learn basic theory on antennas, and notes on homebrewing efficient shortwave antennas

Ground / Radial Systems - Guide to ground mounting antennas by Bencher

Radial systems and ground - Radial systems for elevated and ground mounted vertical antennas by SteppIR

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).

Calculate antenna gain  ^updated - Guide to calculate effective gain of antennas

HF Antenna and Tower Raising - Raising a new tower and a pair of large beam antennas pictures and notes

W0AIH Contest Station - Welcome to the farm, where the primary crop is big towers and antennas.

KC1XX Contest Station - Amateur Radio Station owned by Matt Strelow. The station is designed for competition in the multi-operator multi-transmitter category of high-frequency DX contests. Running with 7 towers 6 rotators, 8 beverage listening antennas, and 4 spotting verticals

Cross-Yagi antennas - For two purposes a Cross-Yagi can be useful Satellite work or if you need both vertical and horizontal polarization for terrestrial contacts

Antenna insulators for DK7ZB Yagis - Homebrew antenna insulators for DK7ZB yagi antennas

Stacking Yagi Antennas - About Stacking yagi antennas by OH1ZAA

NEC4WIN - NEC4WIN is a 32 bits commercial antenna simulation software based on MININEC3 developed by the Naval Ocean Systems Center in the 70s and 80s. It runs under Windows and can be used to simulate, analyze and optimize wire antennas, beams, verticals, etc. NEC4WIN has limitations. They are the same as Mininec3 on which the engine is based.

Javascript antenna calculations - Javascript online calculators for dipole 5/8 verticals with radials, and delta loop antennas