The core technologies used in the TETRA standard, such as Digital, Trunking and Time Division Multiple Access (TDMA) also provide a number of inherent advantages and benefits as follows: Digital Nowadays, practically everything electronic
The area of TETRA security is extensive, as it needs to provide different levels of security ranging from what is acceptable on commercial networks to what is acceptable on a national public safety network. The security mechanismsin the st
This is a completed part of the TETRA suite of standards produced for Data Only wireless communication applications.To date, no manufacturer has developed PDO systems and products because all traditional Professional Mobile Radio (PMR) use
DMO is the term used by the TETRA industry to describe the ability of TETRA radio terminals to communicate directly with each other (like Walkie-Talkies) independent of the Trunked Mode Operation (TMO) network. DMO is not new and has been
To meet the needs of traditional PMR user organisations, a wide range of V+D services and facilities have been provided in the standard, of which the most important are considered to be: Voice Services Group Call (commonly called all infor
TETRA is an open standard developed by the European Telecommunications Standards Institute (ETSI). The main purpose of the TETRA standard was to define a series of open interfaces, as well as services and facilities, in sufficient detail t
摩托罗拉已签订协议从诺西网络手中接管挪威全国范围TeTRA Nodnett项目,包括相关雇员。Nodnett是多个部门联合管理的数字无线通信系统,Direktoratet for Nodkommunikasjon (DNK-应急通信委员会)领导挪威应急通信和公共安全服务通信网的建设,隶属于司法部
2012年6月20日,摩托罗拉系统公司宣布,其所提供的800MHz TETRA数字集群通信系统已在昆明1、2号线成功落成,并将作为昆明地铁通信中重要的指挥调度网络系统,为昆明地铁的安全、高效运营做出贡献。该系统在地铁南段的成功落成意味着昆明在提供安全可靠的地铁系
近日,TCCA宣布北美TETRA论坛正式成立,主要对该区域潜在TETRA数字集群技术的供应商进行开放。NATF(北美TETRA论坛)将提供技术支持以及主要利益相关者之间的竞争,包括TETAR网络的RF频谱的立法和调整。该论坛将促进该地区的语音和数据应用,以及其他增值服
一个无线通信指挥调度系统的建设,要充分考虑到系统的兼容性、安全性、可靠性、可扩展性及共享性和延伸性,能够适应多种管理模式。今天所研究的“无线链路派接技术在TETRA数字集群系统链路应急状态下的实现与应用”项目,就是对TETRA数字集群系统的二次开发,
一 前言 随着我国工业化、城市化进程的快速推进,大城市的交通拥堵越来越严重的影响制约了城市经济的发展、市民的生活和出行、商贸旅游等各个方面。而城市轨道交通(以下称地铁 )以它的便捷、准时、载客量大、不受天气影响等优点,成为目前解决各个大城市交通
5月22日至25日,摩托罗拉系统公司(Motorola Solutions, Inc.纽约证券交易所股票代码:MSI)携其公共安全整体通信解决方案亮相于在北京国家会议中心举办的第六届中国国际警用装备博览会。 在本次展会上,摩托罗拉系统特别为中国政府与公共安全用户带来了横跨
近日,IMS Research发布了TETRA隐藏式终端市场规模的研究,研究显示在TETRA用户中约2%的用户正在使用隐藏式设备,且用户数量将呈现持续增长的趋势。这对TETRA供应商意义重大。同时,隐藏式设备并不仅仅局限于TETRA标准,还能满足数字移动无线电(DMR)和P25
TETRA数字集群在英国警察中的应用,前言目前,国内的数字集群TETRTA网络在不少大城市已经建成并投入应用,取得了较好的效果。数字集群网