log periodic design

HF Aerial Design - A novel approach to aerial evaluation with diagrams and graphs by G3CWI

A Hanging Rectangular Loop Antenna - A rotatable hanging loop antenna that has been specifically designed for hanging in a tree. Horizontally polarized with a broad azimuth pattern and gain of nearly 3dB over a simple horizontal dipole!

Int. DX Contest Logging program - This program checks for duplicates (including partials), lists multipliers by band, provides a country lookup function, lists all contacts, writes the Cabrillo file format for log submission, and provides many current statistics.

Luxembourg Callbook - Designed and copyrighted by Norbert Oberweis, LX1NO/KM6RY

SW2A Contest station - Welcome to SW2A special contest station, with photos, logs and results

T6PSE online log - Afghanistan 2011 dx pedition online log

9W2MSG Blog - Ham radio blog from west malaysian station 9W2MSG

VA3RJ Dave Priority listing - Awards, contesting, dxing, IOTA and Island info, on-line log searches, and much, much, more.

N1EU's Web Site - Original articles and useful hf links for contesting, TopBand 160M, FT-1000MP, Ten-Tec, SSB Audio, Mods and WriteLog

GADM DX Club - Short Wave Club based in Taranto (South of Italy. We have a work-in-progress shortwave online bulletin. Each week we e-mail to subscribers, free of charge, a newsletter with the hottest logs.

DX Radio - FM dx logs, MW carrier offset monitoring, lists of RDS codes in use in the UK, London pirate bandscan and much more from a London QTH.

Scanrec Scanner Recorder - Scanner Recorder (Scanrec) is a free audio recorder that is primarily designed to record speech. It has a VOX control that allows the user to save disk space when no sound is present in the signal. Since FM communications has such an effective squelch, the recorder works best with FM. HF ham bands and World Band radio have such a poor signal to noise ratio that the VOX gate on Scanrec might not be very easy to set.

Vox Recorder  ^{updated  pop} - Vox Recorder is a Windows utility wich allows recording sound from an audio source only when an audio signal is present; its main purpose is to avoid the recording of the silence eventually present at the input. Vox Recorder has been designed in particular for radio-scanner hobbists.

ILIA Software - Logging software to request ILIA award, include a complete list of all italian lake islands references

MobileLog Amateur Radio Mobile Logging - The MobileLog program is a specialty logging program designed for mobile amateur radio operators. It has been designed to allow quick entry of important information regarding QSOs. The software is primarily concerned with the logging of U.S. county information, which may be used to help work toward awards such as the USA-CA award for working all counties in the U.S.A. The data from this program may be imported into your general logging software. This sofware exports data in the ADIF (Amateur Data Interchange Format) and CSV (comma-seprated variable)

Stream - Stream is a software that implements MFSK16 and MFSK8 modes designed by me and Murray Greenman ZL1BPU. It also offers a series of experimental modes based on FEC, interleaving and several modulation techniques (PSK, QPSK, MSK, &c.).

HamSphere - This is a Ham Radio Software Transceiver for Amateur Radio. Software works in Windows, Mac and Linux. HamSphere is a community for Ham Radio operators and other radio enthusiasts. Amateur radio equipment is not needed. The Transceiver uses java technology and covers all virtual Ham Radio and Amateur radio bands from 160 to 6 meters.

VHF Logging program - This program checks for duplicates (including partials), lists multiplier grids by band, lists all contacts, writes the Cabrillo file format for log submission, and provides many current statistics by N3FJP

Omnilog - Logging program which offers control of your KENWOOD, ICOM, TEN-TEC , or YAESU (FT840, FT900, FT990, FT1000, FT1000D) radios directly from your keyboard or emulation of any of the above radios.

WLOG2000 LogBook for OM SWL BCL CB - Database logbook for OM SWL BCL & CB with utility like DXCLuster DXtelnet PSK PSK-Pbbs (TNC or PC sound card) radio rotor CDbook interface and many other features. Free Update at homepage.

WinPSKse - WinPSKse is a logical outgrowth of WinPSK as designed and written by AE4JY. The look and feel is intentionally similar, but some significant changes have been made, not the least of which is the ability toreceive two PSK31 signals simultaneously.

WB0NNI Home Brew HF Amps and Tutorials  ^pop Priority listing - Tutorials and other information on designing and building hf amplifiers. Includes tube data and amplifier projects.

Next generation beacon - The next generation beacon platform for the OZ7IGY beacons should encompass both the analog and digital mode, i.e. FSK and MGM in a mixed mode configuration

Electro Cables Coaxial Catalog - RGG 6/U, RG 8, RG 11, RG 58, RG 59, RG 213 RG 223/U and many other cable specs with attenuation data

A 50 MHz MicroWattMeter - A design for a simple microwattmeter. Input range -75 dBm to + 5 dBm. Frequency range 2 to 50 MHz