vertical log periodic

Hybrid Antennas - Antennas that use a combination of vertical and horizontal polarisation.

EFHW Vertical Antenna - Steve G0KYA project of and End Fed 1/2 Vertical

Short Vertical Antennas and Ground Systems  ^pop - This article describes how an effective ground system can be produced for a short vertical antenna.

N. American Data Communications Museum - Telephony technology from telegraph to digital transmission

Maik Uniform France - New French MU website with many DX News , Logs , Softwares and more.

TR LOG - Contest logging software by N6TR, a free limited version is also available, includes some contests and a cw simulator mode.

OK1RR DX & Contesting Page - Almost a fresh QSL manager Database, Country Tables for YPLOG by VE6YP (updated monthly), Additional files for the TRLoog by N6TR. Technical topics for HF Contesting (mostly CW), software download (a huge collection)

RA0FF Contest Page - RA0FF contest Log search Since 1995. UE0FFF log, First DXpedition to Moneron Isl - RK0FWL/p, contest links.

RA0FF LogSearch Collection - DXers and Contesters logs. Interactive Logs, Log Search, Logbooks collections.

YO5OFJ Istvan's Ham blog - yo5ofj's Istvan Vanyi Ham blog

Real-Time Internet Radio - All about live Internet Radio Broadcasting, including links to stations throughout the world and articles on the technologies that make Internet Radio possible.

GAP Antennas - GAP produces HF vertical antennas

A/D Technologies - A/D Technologies is a manufacturer and service company dedicated to providing unique and valuable products and services to ourcustomers.

Heros Technology Ltd - HF Radio Preselectors,BCB filters,Low Pass filters,Band Pass filter

AEA - AEA Technology Inc. is a pioneer and leading manufacturer of RF and cable test equipment for the wireless, Telco, CATV, NMR & MRI, RFID, telemetry, aviation, commercial, military, and two-way radio industries. Produces SWR Meters, Pre Amplifiers, filters, power meters and antenna testing products

Titanex  ^pop - Low weight Titanium Verticals, Log-Periodics, Yagi antennas, Quads, towers and antenna accessories by Titanex

Linux DStar Development - The life and times of development of a Linux D-Star repeater and dplus node.

Satellite Tutorial - A good starting point to setup an Amateur Radio Satellite receiving system.

Universal Radio  ^pop - Online Catalog. All about Radio comms, HF VHF Scanner CB radios, antennas and accessories

Funkenhauser's WHAMLOG & Mediumwave DX Links - Free WHAMLOG files download page, medium wave (AM/BCB) resources, homebrew loop antennas, radio receivers, DX lists, DXpeditions, ODXA MW Notebook.

DXtreme software - DXtreme Software produces powerful and easy-to-use logging applications for radio enthusiasts such as Amateur Radio operators, Shortwave DXers, Shortwave listeners, Broadcast band DXers, VLF DXers, VHF, UHF, and TV DXers

DX 4 Win  ^pop - DX4WIN is an easy to use, yet powerful logging program for every ham. It has been designed for the the serious and the casual DXer.

LogWindows - Log X  ^updated - Log-X formerly LogWindow is a Windows based software program designed for the specific use of Amateur Radio operators to keep a log of the contacts that were made with other radio operators around the world, designed to be used in Amateur Radio contests, Emergency situations, and for general record keeping of conversations. By SCO Inc

XMLOG freeware Logbook - XMLog is an amateur radio logbook system for Windows and Windows NT.

Batteries - some thoughts - What sort of batteries when operating mobile, choosing proper battery technology