Barlow Wadley XCR-30
- The first direct readout crystal-controlled portable shortwave receiver is profiled and reviewed. Includes technical articles, downloads, and links.
- http://www.barlowwadley.it

Kneisner + Doering Elektronik GmbH
- Manufacturer of the KWZ30 dual conversion DSP Communications Receiver
- http://kd-elektronik.com/index_e.html

Grundig AG
- Manufacturer of World Band radios, satellite, TV, and audio equipment.
- http://www.grundig.com/

Yaesu Company USA
- Yaesu produces communications equipment for marine, amateur and shortwave use.
- http://www.yaesu.com/

North Country Radio
- Kits, including transmitters and receivers. Technical articles and information on electronic subjects geared towards ham radio, shortwave and video projects.
- http://www.northcountryradio.com

Sangean - A World of Listening
- Sangean is a leading manufacturer of short wave and pocket radios around the world.
- http://www.sangean.com/

Optoelectronics
- Manufactures and distributes test equipment, receivers, and frequency counters for use in the scanning hobby, commercial radio, and law enforcement.
- http://www.optoelectronics.com/