curtain quad

Delta Quad by F6CNE - A 4 element delta quad antenna for 15 meters in french

Monster Quads - N6LF tells us about his monster two-element 40-meter quad, with bonus three elements on 20 and 15 meters.

137 MHZ QHF Quadrafilar APT Antenna - This version of the 135mHz quadrafilar antenna for APT reception is an adaptation from Bill Sykes and Bob Cobey's article Taming the QFH which appeared in the March 1997 RIG magazine.

Sterba Curtain Antenna for 40 meters - A forty meters band sterba curtain antenna notes by KB8PGW

N4JTE Antennas Priority listing - Just Too Easy 40 meter reversible quads in two an three element version

3 Element cubic quad for UHF - Article in spanish with design and descriptio of a 3 elements cubic antenna for UHF

Quadrafilar Helix antenna for 436 Mhz - This is an antenna that author just built. Was intend for receiving the AO-27 downlink (at 436.800 +/- doppler). It is built with right hand circular polarization, and the gain is supposed to be in the neighborhood of 3 DB.

A Horizontal loop for 80 meter dx - This 80-meter quad loop system requires only supports of modest height—a better single-element antenna may be hard to find by VE2CV

A quadrifilar helix weather satellite receiving antenna - This article describes how to make a quadrifilar helix (QFH) antenna easily, from inexpensive materials: uPVC plumbing pipe and RG-58U co-axial cable.

2.4 Ghz double quad antenna - An easy to build, compact antenna for wireless lan applications that offers a reasonable amount gain.

Antenna construction hints - Hints about Jpole Yagi and Quad antennas

Length of a Resonant Square Quad Loop - Calculating the length of a resonant square quad loop

2-Element-DK7ZB-Quad for 5 Bands - 10-12-15-17-20m A description was in the German Ham-Magazine "Funkamateur" in Issue 11/2003

Hombrewing Cubical Quads - Cubical Quad antenna construction notes

Quad antenna calculator  ^updated - To get the dimensions for your quad, all you have to do is type in the center frequency of the range where you talk, or the frequency you use most and then click the Calculate button.

Boomless quad antenna  ^pop - VU2GX Girimajij article on boomless quad antennas

The DK7ZB-Quadlong antenna - New type of a Quad antenna, 6.4dBd gain

HS0ZEE Antenna Tower Installation - Pictures and history of HS0ZEE 37 meters antenna tower installation with a cubical quad on the top of this tall radio mast.

Common vhf amateur radio antennas - Plans and drawings of common amateur radio antennas, like jpoles, copper cactus, super jpole, omnidirectionals and quads

CD Case WI-FI antenna - A bi-quad antenna for wireless 2.4 Ghz made using a cd case

Freebanders antenna systems - Yagi Quad's and Verticals simple explanations about freebanders antenna systems

CommsAudit - Commsaudit uk, i/q quadrature , hf receivers, rf, multicoupler, multicouplers, switch matrix, antenna matrices, masthead amplifier,, vhf receiver, uhf,

3 EL Quad Designer - This DOS program will figure the wire sizes for a 3 element quad and will also give you the distance from the center of the boom to drill your holes for mounting the wire on the spider. it also gives you the length of the 4 quarter wave lengths of wire in case you would like to figure the spreader drill points yourself.

Quad - from Tonne Software - This graphics-intensive program designs and analyzes active quadrature ("90-degree") networks for use in SSB transmitters and receivers.

HDR-2005 Receiver Workbench - Homebrew HF receiver with quadrature sampling detector QSD (aka Tayloe Mixer)