Lightning protection guide by OBO

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Last revision 2020

Vydal: OBO BETTERMANN s. r. o. Autor: OBO BETTERMANN

Strana 244 z 288

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used primarily for pure tele- phony between mobile telephone subscribers. TETRA/BOS TETRA standard for digital trunked radio and stands for “terrestrial trunked radio”. GSM was intro- duced Germany 1992. can used for classic voice transmission but also for data, sig- nalling and positioning services. This third-generation standard permits transmission speed Mbit/s with HSDPA+ 300 Mbit/s with the fourth-generation standard, LTE (Long Term Evolution). areas with less than Mbit/s data connection.3. SAT-TV Like GPS, SAT-TV uses satellite system for transmis- sion and used for transferring analogue and digital TV programmes. UMTS/LTE The Universal Mobile Telecommunications System (UMTS) allows much higher data rate than GSM. receive the signals satellite dish and LNB (Low Noise Block) are needed; the LNB converts the frequencies from satellite transmission in- to frequencies that can used coaxial cables. therefore very versatile. GPS GPS, Global Positioning System, satellite sys- tem for determining location.3. TBS Blitzschutz-Leitfaden 2018 / en / 2020/01/10 14:42:40 14:42:40 (LLExport_02613) / 2020/01/10 14:42:54 14:42:54 244 Chapter The internal lightning protection system .e. This section introduces several of the best-known technologies: GSM GSM stands for Global System for Mobile Communic- ations and global standard for all-digital mobile communications. Possibly the best-known application this technology navigation systems. The service also used authorities and organisations performing safety and security tasks (BOS). LTE also used for supplying broadband data services rural regions eliminate blank spots, i.4 High-frequency technology High-frequency technology often used systems for the wireless transmission information such as voice, data video.2. However, also offers the possibility circuit- switched and packet data transport