dummy load

W7IUV 160 Meters vertical  ^pop - 90 foot tall top loaded vertical for 160 meters

A dipole for 6 meters band  ^pop - Six meters band dipole horizontal or vertical

Pfeiffer Quads - The Pfeiffer Quad was described in QST and has the desirable feature that it is smaller than a standard cubic quad but does not compromise performance very much. The Pfeiffer design is rather difficult to construct because of the complicated linear loading networks required.

Antennas basics  ^pop - An antenna study guide by NZART, cover basic topics like dipoles, wave lenght calculation, baluns, beams, dummy loads, and measurements.

The ElectroMagnetic spectrum - Excellent poster representing the electromagnetic spectrum from 31.2 mHz to 6.52 EHz, PDF file poster designed by Anthony Tekatch

ESA Portal - Calling all radio amateurs Priority listing - Radio amateurs worldwide are being asked to help collect data from the student-built SSETI Express satellite, due to be placed in orbit on 27 September. To encourage them, ESA’s Education department has organised two competitions and is supplying free downloadable software.

HF Radio wave propagation - Radiowave propagation in the medium and high frequency spectrum in DOC format

Butternut manuals - Manuals of butternut antennas

Icom - Instruction Manuals - This page contains a complete list of all available Icom instruction manuals in PDF format by Icom America

Isotron antenna manulas - From this page you can download the following manuals, in Adobe Acrobat format .pdf, 40 Meter Isotron, 80 Meter Isotron

The Radio Reference - RadioReference.com, scanner frequency and radio communications reference source, with complete conventional frequency assignments, trunked radio system information, frequencies, and talkgroups, FCC License assignments and maps, 10-Code Lists, agency maps, files, downloads, links, and detailed agency information for most public safety, military, and local government activities.

Alfa Lima International - A free radio station that is transmitting world wide on several shortwave frequency 's with loads of pirate and freeradio information.

Smith Chart Software - SimSmith is a highly interactive, real time Smith chart graphing program. Circuits are constructed using drag-n-drop. Load files can be imported from the EZNEC and CocoaNEC antenna simulation software and from the AIM4170 and miniVNApro antenna analyzers. Circuits and load files can be of any size. Key Features: SimSmith is one of the few Smith chart packages which models transmission line losses. SimSmith also allows the description of circuit elements using algebraic equations. SimSmith has only one screen and allows the screen to be resized to increase workspace or readability.

TLE for windows - Transmission Line equations for Windows. Written in Visual C++. This program provides the most comprehensive analysis of a transmission line by w9dmk

DF9CY Project Auriga - PA is a JAVA software package containing several programs, SW/VHF/UHF Logbook (imports format from RADIOMAN, VMT), Log conversion to HTML format, Import and export functions for RADIOMAN, CT RES files, BV QSL Labels, CSV etc. Internet DX-Cluster support, Keeps track of your worked Callsigns, Checks your worked Grid Squares per band, Databases for worked Grids and Callsigns Uses K1EA CQWW.CTY country file, Easy command line version for terminal operation Moontracking as clock, Pathloss calculation

ADIF2CABR - Convert ADIF into Cabrillo log file format by SP7DQR

OH1AA Logging program - The OH1AA logging program package is designed to handle the book-keeping of amateur radio contacts. The package contains three separate main prog- rams by which contacts are managed. Run under DOS and is freeware

RAUMUF - MUF Calculator by G7RAU ( upload updated 31 August 2002) for calculating the possible e MUF on VHF during es season.

eQSLMaster - eQSLMaster is a HAM radio program, that allow to perform various functions using the Electronic QSL Card Centre (eQSL.cc). With eQSLMaster users of the eQSL.cc system have the ability to upload an entire ADIF format log file (or single QSO) and have it deposited into eQSL central database using LogServices.

FT897 SuperControl - CAT control and logging software project especially developed for the YAESU FT-897 transceiver. Full control of the trcvr, EEPROM modification, VoIP, TCP/IP remote control, macro CW keyer, visual band scope

DJ-X3 Memory Management Utility - DJ-X3 Memory Management Utility - Edit Memory Bank channels (700). Upload / Download, Load / Save Memory Bank channel data, Full / Partial Reset of radio.

STSPLUS - STSORBIT PLUS, usually known as STSPLUS, will track the space shuttle or any satellite for which orbital data (TLEs) are available. A brief description of the program and several screen capture examples follow the links for downloading the program files.

GrafTrak - Joe Bijou, WB5CCJ, and Richard Allen, W5SXD, are pleased to be able to provide our users and the satellite community with new Y2K compatible versions of Silicon Solutions satellite tracking software. These programs are free to be downloaded and used by anyone

Locator - This is a handy windows locator program from OH3NJC Ilkka, includes C source codes and formulas

OZ2M - Beacon Keyer  ^updated - Circuit and software to build a beacon keyer, includes downloadable packages.