Tetrapol radio8/22/2023 ![]() The FDMA-based Tetrapol delivered operational systems at an earlier date, rolling out the world’s first large-scale digital PMR network in 1988 (RUBIS for the French National Gendarmarie). The first TETRA systems were installed in 1997. Meanwhile, the TETRAPOL Standard has been recognized since 1996 by bodies such as the International Telecommunication Union CEPT European Police Co-operation Council ETSI Board (in March 1999 ETSI accepted the Tetrapol Publicly Available Specification – TETRAPOL is fully compliant with the ETSI Technical Specifications ) and The Radio Communication Agency. TETRA was adopted by the European Telecommunications Standardisation Institute (ETSI) as the European standard. The main differences between these cellular professional mobile radio (PMR) systems and public mobile radio systems such as GSM are faster call set-up, group calls, priority calls, encryption, and ability to make direct calls without connection via a base station. ![]() It has been defined and approved by the European Telecommunications Standards Institute (ETSI), and is a standard for radio communication in the same way that GSM is a mobile telephony standard. TETRA is an abbreviation of TErrestrial Trunked RAdio. ![]()
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |