Communications & Signal Processing Group, University of Warwick
- Research group specializes in optical and radio communications, digital signal processing, image development, neural networks, fuzzy logic and VLSI design. Page includes list of affiliated laboratories. Located in the United Kingdom.
- http://www2.warwick.ac.uk/fac/sci/eng/eed/research/csp/

Free Space Optics
- In-depth information about the technology and its history. Includes operational notes, glossary, and FAQs.
- http://www.freespaceoptics.org/

Antenna and Electromagnetic Research Group
- Offers research areas, projects, people, facilities, and PhD graduates.
- http://www.elec.qmw.ac.uk/research/antennas/

Multimedia Communications Lab
- Contains research in theory and algorithms for multimedia data compression and communications, digital watermarking and information hiding, and quantum informatics.
- http://www.multicom.uwaterloo.ca

BraBant BreedBand
- Research alliance in broadband communications technologies initiated by KPN, Lucent Technologies and the Eindhoven University of Technology. Offers news, project descriptions and publications.
- http://www.brabantbreedband.nl

PRX205
- Contains a PRX trunking diagram, and information on the holden machine.
- http://www.prx205.org

Blaw-Knox Diamond Radio Towers
- Pictures of the towers. History and technical details are included.
- http://hawkins.pair.com/blaw-knox.html

IEEE Signal Processing Society
- Areas of interest are the theory and application of filtering, coding, transmitting, estimating, detecting, analyzing, recognizing, synthesizing, recording, and reproducing signals by digital or analog devices or techniques.
- http://www.ieee.org/organizations/society/sp/index.html

Telecoms Virtual Library
- Collection of links to telecommunication sites worldwide.
- http://www.analysys.com/vlib/

AM Ground Systems Co.
- Details on ground systems for AM radio and lightning protection.
- http://www.amgroundsystems.com

Carucel-Wireless Broadband Technology
- Carucel(tm) is a fourth generation (4G) wireless technology that provides broadband 20 mbps channels, in 60 Ghz unlicensed spectrum, to mobile users at highway speeds.
- http://www.carucel.com/

IEEE Communications Society
- Diverse group of industry professionals with a common interest in advancing all communications technologies. Sponsors conferences and local activities.
- http://www.comsoc.org/

Applied Radar, Inc.
- Research and development of radar and other electromagnetic sensor, communication, and navigation systems.
- http://www.appliedradar.com

Communication Signal Processing Lab.
- Smart antenna solutions for CDMA systems. It includes adaptive algorithms and smart antenna architecture.
- http://dsplab.hanyang.ac.kr

Cyrospace Technologies
- A provider of technology transfer services with the focus on telecommunications, internet and bioscience technologies.
- http://www.cyrospace.com/