log periodic)

HF J-Pole antenna - A Simple Nondirectional Antenna for Ten Meters QST February 1950, Easy to build J-Pole antenna for restricted space.

VU2TQC Slim Jim - An home made slim jim antenna for 2 meters band by VU2TQC

SWL antenna distribution system - A methodology for connecting multiple LF/MF/HF receivers to a single antenna via readily available and inexpensive 75-ohm TV cable. Custom made baluns and splitters provide impedance matching and prevent interaction between receivers.

EAC R-390A - Photos and description of an EAC R-390A

W5JI Boatanchor Haven - Dedicated to the Care and Feeding of BoatAnchors, includes some Drake catalogs, and 1968 Collins Mechanical filter catalog pages

UCXLog - Log and Contest Program, Windows based, network capability, CW via COM/LPT, SSB/RTTY via soundcard, trcvr-Steuerung (2TX for SO2R etc.), DX-cluster via packet, internet or telnet, statistics(DXCC, IOTA, locators...), log import/export, QSL card handling(printing tool), grey land map etc. etc. and freeware!

TX5K Online-Log - TX5K Log On-line Clipperton 2013

Delta Technology - DELTA Technology is specialized in the lightning protection field, surge arresters, lightning counter.

Flex-Flyer CW Keyer - Precision CW key for the discriminating amateur with NO maintenance you can literally send CW Forever! Iambic CW keyer using space age technology

CT1EFL Web Site - Personal web pages with logs, information on learning cw and operating in CT-land.

HRPT - NOAA HRPT - High Rate Picture Transmission, the main source of high quality data from polar orbiting meteorological satellites

WWSU NDB Logger - Windows NDB searcg and log editor utility by VE3GOP

Band Master - Band Master is a program for Radio Amateurs that downloads DX spots and displays them in different ways, including a graphical band map. It can be used either as a stand alone application or as part of a logging or contesting software via the COM/OLE interface. Rig control, country/province resolution, azimuth/distance calculator and online QRZ lookup are built-in, propagation prediction and geographical mapping are available through integration with HamCap and DX Atlas respectively.

Spectrum Lab  ^pop - DL4YHF's Audio Spectrum Analyser Spectrum Lab or Speclab started as a simple FFT program running under DOS a long time ago, but it is now a specialized audio analyzer, filter, frequency converter, hum filter, data logger and more. Can be used for MTHELL QRSS, DFCW, PSK, MSK, Castle

SH5 Contest Log Analysis - SH5 is an easy to use ham radio contest logs analyzer which creates a variety of statistics in HTML format from the Cabrillo format log. Run under Windows and is free to download, by the makers of TR4W

Nlog - Palm os logging program 19 seperate fields for detailed records Stores thousands of records Find records quickly using the PDA's built in search engine User customizable fields Beam records to other handhelds View multiple records at once Print records to you IR printer Great for shortwave listening

UR5FCM Log - UR5FCM Log a powerful Ham Logbook. It is a working center on radio station on daily realization of radio communications, and also, since version 1.1.61 new features of work in digital aspects of connection

Virtins Technology - Offer PC based virtual instrument for electronics enthusiasts, students and professionals, including full-fledged sound card real time Oscilloscope, Spectrum Analyzer and Signal Generator.

QSO Diary - Freeware logging programme for the Palm Platform.

QSO - 73 - Logging Program for palm os

MiniLog Beta - MiniLog is a very basic electronic amateur radio contact log from palm platform. It is intended for small-scale use, such as back-packing and emergency setups.

MeteoWare, meteorological freeware - Freeware Synop Decoder in multilanguage format

RF and Microwate Power Amplifiers - RF and Microwave Power Amplifier and Transmitter Technologies, amplifierlinearity, efficiency and available RF power devices.

General Information about RFI/EMI - RFI/EMI RadioFrequency interference/electromagnetic interference by ARRL Technical Information Service page

Ham Radio Online - Computer Networking RFI - This page is to provide links to resources and information regarding technologies to reduce computer interference