DS EN 301091-1:2004 Electromagnetic Compatibility And Radio Spectrum Matters (Erm) - Short Range Devices - Road Transport And Traffic Telematics (Rttt) - Radar Equipment Operating In The 76 Ghz To 77 Ghz Range - Part 1: Technical Characteristics And Test Methods For Radar Equipment Operating In The 76 Ghz To 77 Ghz Range Defines the requirements for Short Range Devices (SRD) operating in the frequency range from 76 GHz to 77 GHz intended for Road Transport and Traffic Telematics (RTTT) applications such as Automotive