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Antennas for SW Broadcasters - All antennas for shortwave broadcasting, Log-periodic, Dipole Arrays, Curtains antennas, rhombics, broadband dipoles with photos and details.

San Diego Repeater Association SANDRA - San Diego Repeater Association. We maintain oper ham repeaters throughout San Diego and Imperial County, California.

Antietam Radio Association - Home of the ARA Club W3CWC, Proud Sponsors of the Maryland DC QSO Party and The Hagerstown Hamfest

MM0BQM Priority listing - MM0BQM Homepage, lots of info on most soundcard data modes plus received SSTV picture gallery.

WD8KAF Live Repeater Stream - This repeater is broadcast from Coldwater, MI on a frequency of 147.300 MHz. Owned and maintained by the Branch County Amateur Radio Clu

US Police Scanner  ^{updated  pop} - Live, 24-hour audio broadcasts of police scanners in major cities around the United States.

CONEX - DTMF Remote Controls, DTMF tone generators and broadcasting products, remote broadcasting via cell phone, cell phone mixer and remote phone keypad

Broadcast microwave services - Designs and manufactures a comprehensive line of microwave communications equipment for television broadcast, video, telemetry, and electronic surveillance applications.

ACA frequency database - Australian frequency database

NGDC data - archives of geomagnetic data to further the understanding of Earth magnetism, includes ionospheric datas

Ionospheric T Index - T index explained BY NOAA

Sunspot numbers explained - Definition of smoothed sunspot number and R12 index

Sunspot Number - How sunspot numbers are computed

TV DX pages - General and technical informations, colour and broadcasting systems by country, frequencies

The AM stereo page - A comprehensive listing of AM Stereo radio stations in North America with listening tips, news, AM mono to stereo radio conversion information, sources of AM Stereo receivers and a history of AM Stereo broadcasting.

Shortwave-O-Rama - The ultimate shotwave site now with links to broadcasters homepages, by Michael Carter

What can I hear on shortwave radio - Most people, when they think of "shortwave," think of shortwave broadcasting. There are lots of other services using the shortwaves, although not as many as there used to be.

Radio Bahamas, ZNS - Info about the three AM BCB stations of ZNS (Zed-N-S), Radio Bahamas.

Prime Time Shortwave  ^updated Priority listing - The latest shortwave broadcast schedules with listings by time, country and frequency plus a DX program guide.

Voice Shaper - Voice Shaper is a freeware windows speech pre-processor for SSB transceivers. It receives the voice signal from the microphone connected to the soundcard, and sends the processed audio back to the soundcard in real time by Alex Shovkoplyas, VE3NEA

MT63 Terminal - MT63 soundcard program for Windows by IZ8BLY

WinWarbler  ^updated - A free soundcard application supporting PSK31, PSK63, RTTY, CW, and Phone operation. It can decode all PSK QSOs within a 4 KHz segment, maintaining a sorted list of heard callsigns; it can simultaneously decode RTTY via soundcard and an external modem, generates CW directly or via WinKey, and includes a voice keyer. WinWarbler interoperates with the free Commander, DXKeeper, and SpotCollector for transceiver control, logging, and spotting.

PathSim - PathSim is a Windows program that can be used to simulate radio propagation paths using a soundcard and/or wave files as the source and destination.

Zelscope  ^pop - Zelscope is a Windows software that converts your PC into a dual-trace storage oscilloscope and spectrum analyzer. It uses your computer's sound card as analog-to-digital converter, presenting a real-time waveform or spectrum of the signal - which can be music, speech, or output from an electronic circuit.

FFTDSP  ^pop - FFTDSP is a PC program which can detect weak radio signals in real time. Uses the PC's soundcard and advanced signal processing techniques, extracts and displays weak signals from the receiver audio.