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Magnetic Loop Antenna Experiments - Building a magnetic loop antenna feels more like a small plumbing project as the principle building materials consists of copper water pipe and fittings that must be soldered ("sweated") together. Full details drawing and details here.

Zlog for windows - zLog for Windows is a freeware full-featured contest logging software that runs on Windows. It supports major international and domestic (JA) contests and is customizable to many other contests not directly supported by zLog. Features include CW keying via parallel/serial/USB interfaces, highly sophisticated TCP/IP network that allows instant synchronization of a log of an M/M station, rig control, PacketCluster connenction. By JJ1MED/AD6AJ

K7AR DX NorthWest Web Cluster - Web cluster sponsored by K7AR

ARRL LoTW - Log of the World by ARRL let hams confirm two-way contacts they have made and use the confirmations as credit toward various awards.

Longview East Texas radio club - LETARC provides public service to the Longview Tyler Gilmer Henderson Gladewater Marshal Texas areas through the availablility of their SKYWARN alert repeater and a large network of weather watchers.

W8MHB U.S. Amateur Radio Practice Exams - "Interactive online practice exams, printable practice exams, interactive searching and browsing of the question pools; Free, no advertising, no registration required"

W2CZ Efrem - Ham Radio is a hobby shared the world over

QRZ.RU Russian HamRadio Server - Free Russian hamradio server special for radiofanats from CIS. Search engine on callsigns, electronic circuits and hamradio programs in www powered with knowledge base.

VR2HF Online Yaesu FT-817  ^pop Priority listing - Online Yaesu FT-817 transceiver (receive only over the Net) using R.A.T.S. control software and MS Netmeeting for program access and audio. Asia's first online receiver, first online FT-817, and worlds first full-featured online receiver (operates just like a desktop radio including audio encoding time of less than 1 second). Operating from a flat in Kowloon, Hong Kong. Open to all.

JPS Communications - Noise reduction products

Six Meters: An Introduction - An extensive introduction to 50 mhz band, (6 meters)By Dave Finley N1IRZ, appeared in QRPp Winter 2000

Amateur Radio Astronomy in North Yorkshire - Amateur radio-telescope project of a retired seafarer.

Johnson Space Center - The JSCARC, located at NASA's Johnson Space Center, Houston, Texas, supports the U.S. Space Program and the International Space Station.

Flexnet Powered Site - Italian web site about Aprs Uscc Rmnc Cluster tsthost fbb flexnet

H.F. F-Layer Propagation Predictions Priority listing - Assembled from a prediction model written by VE5ZX/G0TZX, from parameters supplied by G4FKH

Propagation Prediction Tool - This is a propagation prediction program tailored to the serious contester

Smith chart - Match & display imped of antennas, can graphically visualize and compare two sets of measured impedances simultaneously.

SpotCollector  ^updated - A free application that captures DX and WWV spots from up to 5 internet clusters and a local packet cluster. DX Spots are merged and stored in a Spot Database on your PC, enabling you to monitor, sort, and filter them in real time; known LotW participants are highlighted, as are needed stations. WWV spots are plotted to show SFI, A, and K over the last solar revolution.

SSTV Pal Multimode - SstvPal Multimode, predecessor of EasyPal not supported anymore by Erik Sundstrup

Beam Aim - Draws a world map centered on your QTH. Type in a DX station's call sign to get the beam aim azimuth and distance to the station.

SeaTTY RTTY/NAVTEX decoder - Program to receive weather reports and navigational warnings transmitted on longwave and shortwave bands in RTTY and NAVTEX modes. None additional hardware is required - your need only receiver and computer with a sound card.

W6ELProp - Predicts ionospheric (sky-wave) propagation between any two locations on the earth on frequencies between 3 and 30 MHz

MMSSTV - MM Hamsoft  ^{updated  pop} - SSTV freeware software for Windows by Mako JE3HHT. An excellent SSTV program that requires only a computer with soundcard, no expensive TNC required. Works on all Windows version including Windows XP, Vista and Windows 7

RDFT - HDSSTV - High definition SSTV software, Redundant Digital File Transfer

The Radio-Frequency Ground - You were told that your audio was no good, that you had "RF in your audio ? This is also known as RF feedback