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TETRA Association - http://www.tetra-association.com/
Organization representing users, manufacturers, operators, test houses and telecom agencies for terrestrial trunked radio, an open digital trunked radio standard defined by the European Telecommunications Standardisation Institute . |
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Team Simoco - http://www.teamsimoco.com/
Designs, installs, and maintains conventional and trunked radio systems. |
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Land Mobile Spectrum Planning Options - http://www.ntia.doc.gov/osmhome/reports/slye_rpt/appendix.html
Article discussing the sharing of trunked public safety radio systems among Federal, State, and local organizations . |
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Entropia Network - http://www.entropia.eu/
Commercial wireless voice and data provider with its own trunked radio network in Belgium. |
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Base Radio Systems Program - http://www.eis.army.mil/brs/
Provides information on the competitively awarded set of contracts that offer a complete menu of Land Mobile Radio products to all U.S. Federal Agencies worldwide. Managed by the Army. |
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Fylde Micro, Ltd. - http://www.fyldemicro.com/
Provides trunking systems to OEMs, dealers, and end users. Includes dealer locator. |
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Genesis Group - http://www.genesisworld.com/trunking.asp
Article describing the basics of trunking together with an industry glossary and available software programs. |
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http://gtrac.ztn.net/ - http://gtrac.ztn.net/
Resources for EDACS TrunkTracking. Includes guides on frequencies, programming, talk groups, and related links. |
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Gould Electronics - http://www.gouldelectronics.co.uk/
Offers trunked radio solutions as well as shop watch schemes, conventional 2-way radio and fire service communications systems. |
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Trunking Information - http://www.photonick.net/radio/
Information on several Motorola systems, the EDACS system which is operated by the City of Clearwater, as well as conventional frequencies for the Greater Tampa Bay Area. |
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Crudele Communications - http://www.crucom.com/
Sales and service for two-way radio trunking repeater systems. Conventional two-way including UHF, VHF and low-band. FCC licensing and Nextel Phones. |
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Nighthawk Communications, Inc. - http://nighthawkcommunications.com
Offers VHF and UHF wide area LTR System, sales, rentals and repair services in the Los Angeles area. |
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United States Patent: 5,815,799 - http://www.freepatentsonline.com/5815799.html
Priority system for a wide area transmission trunked communication system. Here is the LTR Multi-Net Patent that explains the signaling protocol. |
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United States Patent: 5,822,314 - http://www.freepatentsonline.com/5822314.html
Communications system and method of operation. A typical operational function, using timing information inherent in the transmissions, is the encryption/decryption process within the Trans European Trunked Radio (TETRA) standard. |