log periodic dipole arra

W3FF Portable Dipole  ^pop - This is the antenna w3ff designed for his walking portable station. It is a dipole constructed out of the plastic plumbing pipe CPVC. There are telescoping whips at the ends of each side of the dipole, and these whips are adjusted to bring the antenna into resonance on each of five HF Bands 10, 12, 15, 17, and 20 Meters

300 ohm twinlead 40 meter dipole - The N2CKH travel special 300 Ohm ladder line convertable antenna

The Double Bazooka Antenna - The Double Bazooka Dipole is a very efficient single band antenna which is very quite, and does not require the use of a balun. This antenna consists of coax (RG58) or other 50 ohm type with the shield split at the center and the feedline attached to the open ends

End-Fed Halfwave Antenna  ^pop - The end-fed halfwave antenna is a resonant half wavelength long antenna like a dipole antenna except for it is fed at its end rather then in the center. This antenna is as old as radio and is probably best known as the Zepp Antenna

A $20 HF mobile antenna - A few hours of fun with PVC and wire and you’ve got yourself a respectable road radiator. The antenna consists of little more than some PVC pipe topped by a RadioShack replacement whip antenna and a couple of coils made from a small roll of #14 house wire.

802.11b Antenna on the Cheap - Build a 802.11b antenna using PVC, some cheap copper tubing, a Pringles can, and some scrap cardboard, in a few hours. Tests state a 12db gain on 2.4 Ghz

2E0BEJ Ben Sutton Priority listing - Blog discussing my Amateur Radio experiences including APRS, Fox Hunts, Construction, first steps into HF, etc

The Gallery of the EME Arrays. - A Collection of EME Reflector Antennas and YAGI Arrays.

Bicycle-Mobile antenna - WA5FRF VHF mobile antenna for bicycle installation

ARDF in Norway - The LA ARDF is the Norwegian Radio orienteering association, and our main activity is radio orienteering. We arrange regular competitions every week from the middle of April to late September.

Ham Gear - Ham Radio T-Shirts, Caps, Mousepads, also vintage designs! Designs include logos from Amperex, Collins, Eico, Eimac, Gonset, Hallicrafters, Hammarlund, Heathkit, Johnson, Knight, Mars, National, Swan, Skywarn and others.

Cabrillo Evaluator by W3KM - Cabrillo Evaluator Software by W3KM free software loads Cabrillo log files, evaluates and scores them.

BBLogger - BBLogger, a freeware windows software to fully manage you Amateur or Short Wave Listener Radio Station written by Giorgio IK2VIW

YG-PSK - Simple PSK31 and RTTY program based on the AE4JY PSK engine. Logging inlcudes 10-10 and VP number. Exports to ADIF and CSV.

DRM Software Radio Project - The DRM Software Radio is based on the proven Fraunhofer DRM engine, which is considered to be the most advanced DRM engine today, built around fully licensed proprietary DRM encoding technology.

Analog Inputs on a KPC-9612 TNC - Modify a KPC-9612 to give a total of four analog input for remote monitoring and telemetry.

Broadband news: EU sets bpl guidelines - The EU has followed the U.S. lead in clarifying rules surrounding BPL (broadband via power-line) technology

Amperion Inc BPL tests - Amperion Inc. issued an announcement that it has successfully tested its broadband powerline (BPL) technology over high-voltage, 69,000-volt transmission lines.

Broadband news : another bpl trial dropped - The company trialing the technology has decided BPL was not "commercially deployable," and has instead decided to focus on wireless mesh networking in the region

Are you ready for BPL - Broadband over power lines (BPL) is a technique for transmission of high speed data (broadband Internet) over powerlines. Access BPL technology injects radio frequency energy into powerlines which were not designed for transmission of radio frequency energy, and leak substantial energy that causes interference to radiocommunications service

BPL Interference - Zip file taht contains a tutorial section that explains several different BPL technologies

Bpl interference blocked in europe - Blog post announcing that Ham Radio, shortwave listeners and broadcast band listeners will be protected by Law in Europe

SDR - Software Defined Radio - Forum - SDR Forum - organization dedicated to promoting the development, deployment and use of software defined radio technologies for advanced wireless systems.

FCC Facilitate SDR technology - FCC adopts rule changes to faciliate deployment of Software Defined Radio technology

ARRLWeb: Software Defined Radio - ARRL page on SDR technology