WRTH - The World Radio and TV Handbook
Recreation, Radio, Shortwave and DX Listening, Frequency, Schedule and Programming Guides - WRTH - The World Radio and TV Handbook. An annually published DX/Listener Guide to world radio, TV, and satellite stations.
https://www.wrth.com/
Transmitter Documentation Project Page
Recreation, Radio, Shortwave and DX Listening, Frequency, Schedule and Programming Guides - Transmitter Documentation Project Page. Contains numerous links to shortwave stations, DX program information, transmitter site detail and transmitter histories.
https://www.broadcast.be/
Sangean America Product Showroom
Recreation, Radio, Shortwave and DX Listening, Equipment - Sangean - A World of Listening. Sangean is a leading manufacturer of short wave and pocket radios around the world.
https://www.sangean.com/
Optoelectronics, Inc.
Recreation, Radio, Shortwave and DX Listening, Equipment - Optoelectronics. Manufactures and distributes test equipment, receivers, and frequency counters for use in the scanning hobby, commercial radio, and law enforcement.
https://www.optoelectronics.com/
Ergo Radio Software
Recreation, Radio, Shortwave and DX Listening, Equipment - ERGO Radio Software. ERGO is software for enhanced shortwave radio listening.
http://ergo.fallows.ca/wp/
WiNRADiO Communications - The future of radio.
Recreation, Radio, Shortwave and DX Listening, Equipment - WiNRADiO Communications. Hardware, software and frequency databases to allow personal computers to be used as communications receivers.
https://www.winradio.com/
Quantics W9GR Digital Signal Processors
Recreation, Radio, Shortwave and DX Listening, Equipment - Quantics W9GR Digital Signal Processors. Information about the DSP-3 which removes noise and other unwanted interference from voice and data communications signals.
http://www.w9gr.com/
Freeze! DXing Arctic Style
Recreation, Radio, Shortwave and DX Listening, DX Listening - Freeze! DXing Arctic Style. AM DXing taken to the extreme.
http://www.dxing.info/
Suomen DX-Liitto ry (SDXL)
Recreation, Radio, Shortwave and DX Listening, DX and Radio Groups - Finnish DX Association. FDXA is the radio club in Finland and have mostly information in Finnish.
http://www.sdxl.org/
DRM Software Radio Project - Home Page
Recreation, Radio, Shortwave and DX Listening, Equipment - DRM Software Radio website. Commercial software implementation of a DRM-Receiver.
https://www.drmrx.org/