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Citizen Radio Network - An intiative to use unlicensed radio services as alternative communications system during extreme emergencies and disasters.

DX Holiday - This website offers a starting point for people looking for a QTH for a: DXpedition, Contest Expedition, or IOTA Expedition The information contained in these pages has been collected from hams who have recently operated from these locations.

ARRL: US frequencies allocation - Transmitter power limits and frequencies allocation by band

S55AW Home Page - Meteorscatter, Tropo, Es

IW1AU Gian Maria - My ham spirit, my publications and my home-made!

The Boatanchor Classifieds - A free service dedicated to enthusiasts of fine tube gear from Amateur Radio's classic era.

NH7C Amateur Radio Social Network - NH7C.com was created with the user in mind and sports many of the latest features available. Whether you have interest in Contesting, QRP, CW, Emergency Communications or any other facet of Amateur Radio, you are welcome here at NH7C.com.

The Four Metres Web Site - A website dedicated to 70 MHz Band

SARA - Society of Amateur Radio Astronomers - International non-profit amateur group dedicated to observing the radio sky and sharing technical information.

EME, SETI, Radio Astronomy, DSP, and Radio Amateurs - Site dedicated to amateur radio astronomy, providing information on Earth-Moon-Earth (EME) communication, the Search for Extra-Terrestrial Intelligence

Pisgah Astronomical Research Institute - Non-profit public foundation dedicated to providing research and educational access to optical and radio astronomy. Located in Rosman, North Carolina.

Radio Astronomy at the University of Indianapolis - Site provides educational information about radio astronomy. Radiotelescope data from their project is posted on the Web in real time.

SETI League - A non-profit educational and scientific organization devoted to privatizing the Search for Extra-Terrestrial Intelligence.

The Onsala Space Observatory - Located 30 miles south of Gothenburg, Sweden

SM5BSZ VHF DXing - VHF long distance comunication, equipment and operating modes

Troposcatter Meteorscatter Ionoscatter - Troposcatter, 50 MHz meteor scatter, ground gain for eme, radiation angle, by OZ1RH

Introduction to VHF Propagation - Understanding basic VHF and UHF propagation, eskip, Backscatter, Meteor Scatter and more

MDM Radio - New and Used, Buy and Sell, Electronics, Communication and Radio Equipment and Manuals: General Electric, RCA, Motorola, Midland, Uniden, Vision mate electronics

PropView - PropView is a free application that uses the included VOACAP, ICEPAC, and IONCAP engines to graphically display band openings between two locations over a specified 24 hour period. It can also build schedules for the IARU/HF beacon network and automatically QSY your transceiver to monitor each scheduled beacon.

WSJT High Speed Meteorscatter - "Software uses four-tone frequency-shift keying for meteor scatter. WSJT stands for ""Weak Signal communications, by K1JT"", and plans call for the program to include more than one communication mode."

SpotCollector - 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

Multi-SETI@Home Monitor - A graphical add-on package to monitor seti@home activity that may be running on multiple computers over a network or multiple instances on the same computer. Runs on Windows or Linux.

DXKeeper  ^updated - DXKeeper is a free application that logs QSOs, tracks award status, generates QSL cards & labels, addresses envelopes, uploads QSOs to eQSL.cc and LotW, and downloads progress info from eQSL.cc and LotW. It can reference the RAC, Hamcall, and QRZ callbooks as well as the QRZ.com web site to fill in data when logging, or to update already-logged QSOs. DXKeeper automatically interoperates with all members of the freeware DXLab Suite, including Commander (transceiver control and bandspread for Alinco, Elecraft, FlexRadio, Icom, Kachina, Kenwood, TenTec, Yaesu), DXView (world map, rotator control), WinWarbler (PSK, RTTY, CW, Phone) and SpotCollector (DX and WWV spots). It also interoperates with MMTTY, MMVARI, MMSSTV, MultiPSK, MixW, DX Atlas, and Ham Radio Deluxe.

AMSAT Software links  ^pop - Links for Satellite tracking software and other Satellite information.