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G5RV Antenna  ^pop - The G5RV antenna, with its special feeder arrangement, is a multiband centre-fed antenna capable of very efficient operation on all hf bands from 3.5 to 28 MHz

Wire antenna  ^pop - The $4 Special all band wire antenna

Radio Club Burriana - CB radio club founded in spain and based in Italy too

198AT¤ home page - Special web page about 198AT¤ DXpedition from Falkland island

30 RMA 001 Paco - web site dedicated to eleven meters dx also in spanish

Boletin YV DX VHF - Site dedicated to DX in 50 MHz and above, published weekly every Saturday in English and Spanish, many interesting sections. Statation of the week, articles, and more.

Tri-County Ham Radio Club N. Texas - Serving Tarrant, Parker, Wise counties, and city of Fort Worth, Azle, Springtown, Boyd, Weatherford, Saginaw

Radio Amateur Relief Expeditions - Radio amateurs helping orphanages, hospitals and schools in Romania and Russia

Cuenca Radio Club (Ecuador) Priority listing - Club information, photos, utilities, links and repeater list. In Spanish

PA1CW Henk - Contest, Antennas, Rotating Towers, Rotors, Guywires, CoaxHardlines, Specs and more

RADIO DX 11 METROS - CB radio mailing list for dxers in spanish

RF Applications, Inc. - Specialized in RF Power Measurement Systems and other devices that make operating radio transmitting stations safer and easier.

I5XWW Crispino Kits - Ham Radio Kits, soundcard interface for digimodes, usb CAT Interfaces, PA interface cables, connectors, DRM hardware and software, DRM converters

Digital signal processing - Frequently asked questions on Digital Signal Processing

Sonne sunspot observations - Provisional sunspot numbers edited monthly by Martin Dillig

Sunspot number forecast - Provisional international monthly mean sunspot number

Map of solar zenith angles - Global map of Solar Zenith Angles, or angles indicating the elevation of the sun above the horizon

About Sunspot cycles - Theory to explain solar cycles variability proposed by Jean-Pierre Desmoulins

S marks the spot - Forecasting powerful solar explosions several days in advance now be possible

Sunspot activity by NASA - Sunspot cycle closely following prediction by Science @ Nasa

Custom Metalworks - Custom Metalworks - Tower and Antenna Installation, Removal and Repair. Specialists in the Installation of Rotating Tower Systems, Large Yagi Antennas and Arrays.

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.

K9SE E-Layer Propagation Assessment - SE-PROP, Field-Aligned Scatter Assessment, Sporadic-E Propagation Assessment for the VHF Operator

DSP-10 2-meter DSP transceiver - The DSP-10 is an amateur-radio, software-defined 2-meter transceiver that can be built at home. It operates not only on SSB, FM and CW, but also on four Weak-Signal modes. Features are tailored to operation on VHF, UHF and Microwave frequencies. By W7PUA

Spectrum Analyzer Project - This is a tracking page for a tv tuners based homebrew spectrum analyzer project.