近日，南宁迎来了其城市新一代应急联动系统开通纪念日，这一里程碑事件同时也标志着新一代基于全新的摩托罗拉系统800MHzTETRA数字集群系统并采用新一代南宁数字化无线应急指挥平台的应急 通信 主干系统完成升级。早在十年前，摩托罗拉系统（原摩托罗拉）就曾
2012年8月21日，东方通信从众多投标单位的激烈竞争中脱颖而出，成功中标大连无线电管理局800MHzTETRA数字集群通信系统项目。本次竞标的成功不仅标志着东方通信自主研发的800MHz TETRA数字集群通信系统在政府应急通信网络建设中取得了又一次的突破性进展，而
2012年7月，海能达德国子公司与哈萨克斯坦一家专业安全通信公司签订合同，计划为哈萨克斯坦国家铁路组织提供一套TETRA数字通信系统。 海能达ACCESSNET-T IP TETRA系统将为哈萨克斯坦北部阿克纠宾省的Kandyagash - Nikaltau长达150公里的铁路沿线，提供语音通
Rescue services covering 27 municipalities in Swedens capital city are to receive new TETRA terminals, in the largest order of its kind in the country. Four Stockholm fire brigades are to receive 850 TETRA terminals together with accessori
ATETRA network is being installed in the Aktobe province of Kazakhstan, for the Kazakhstan State Railway organization, Kazakhstan Temir Zholy. The new installation will replace analogue radios along 150 km of track on the Kandyagash to Nik
Date: 24th September 2012 Topic: News Issue: Issue 9 Tags: FCC, TCCA The TETRA Critical Communications Association (TCCA) has announced that the US Federal Communications Commission (FCC) has issued a permanent change to its part 90 rules
Date: 10th September 2012 Topic: News Issue: Issue 9 Tags: TETRA awards Entries are now open for the 2013 International TETRA Awards, which will take place next March. The awards, a collaboration between the TCCA and TETRA Today, have been
TETRA、GOTA、IDEN大比拼
ATETRA system from Cassidian has been chosen to provide radio coverage for the first metro line in Zhengzhou, capital and largest city of Henan province in the central plains of China. The plan is to build six metro lines in Zhengzhou, wit
Border police in Romania have inaugurated the central command and control centre for a new border security system from Cassidian. Begun under a contract awarded in 2004 and extended in 2009 to cover the complete Schengen external border, t
Following last years changes in the radio regulations in both Canada and the United States, which for many classes of user have now opened up the possibility of using TETRA technology, more radio manufacturers are moving to establish distr
The societies and their individual members are becoming increasingly conscious of their environment and the importance of maintaining safe and secure conditions for sustainable development. This awareness is reflected in the legislation wh
The text below mainly provides a checklist of items and tasks that need to be understood and catered for when starting aTETRA network project. Differences between PMR and cellular network planning As most mobile network planners today are
Licensing obligation Operating a radio communications network in most countries is subject to licensing by national telecommunications regulators, both for its type of use and the radio frequency spectrum it utilises, especially as radio f
TETRA Interoperability Certification - See certification summary tables - Download Certificates - See list of participating manufacturers - Download White Paper explaining the certification process (Chinese translation of paper available h
Procurement and operation of a modern communications system requires consideration of several complex issues. This section is aimed at providing basic facts and guidance to help successful rollout and use of a TETRA system.The TETRA MoU As
TETRA Standard TETRA Release 1 Voice + Data Direct Mode PDO TETRA Release 2 Security Technology Benefits Key Services Markets and Applications ETSI Standards Glossary Definition TETRA Deployment Interoperability Regulatory Intellectual Pro
Issue 3 February 2006 ACELP Algebraic Codebook Excited Linear Prediction method for low bit rate voice coding and decoding ADPCM Adaptive Differential Pulse Code Modulation AES Advanced Encryption Standard AI Air Interface Air Interface en
TETRA Standard documents from ETSI come with the following prefixes: EG - ETSI Guide EN - European Norm ES - ETSI Standard ETR - ETSI Technical Report SR - Special Report TS - Technical Specification TR - Technical Report The brief guide t
In developing the TETRA standard to meet the needs of traditional PMR user organisations, numerous services and facilities have been provided. Details of all the TETRA services and facilities can be found in the About TETRA Section under T
