scope:

This Interim European Telecommunication Standard (I-ETS) applies_to 5,8 GHz Short Range Devices (SRDs) for use in Road Transport Traffic and Telematics (RTTT) whose protocol is defined by CEN TC 278 appropriate standards:

- with an Radio Frequency (RF) output connection and specified antenna or with an integral antenna;

- for data transmission only;

- operating on radio frequencies in the 5 725-5 875 MHz Industrial, Scientific and Medical (ISM) band.

It covers the minimum characteristics considered necessary in order to make the best use of the available frequencies. It does not necessarily include all the characteristics which may be required by a user, nor does it necessarily represent the optimum performance achievable.

This I-ETS is based upon ERC decision ERC/DEC/(92)02 [2]. It is a specific standard covering various JR ITT applications.

This I-ETS covers Road Side Units (fixed stations) and On Board Units (mobile stations) which covers both transceivers and transponders. For certain measurements the transponders should be measured together with the whole interrogating system.

For non-harmonized parameters, national regulatory conditions may apply regarding the type of modulation, channel/frequency separation, maximum transmitter output power/effective radiated power, equipment marking as a condition of the issue of an individual or general license or, as a condition of use under license exemption.

This I-ETS includes specifications for methods of measurement for equipment fitted with antenna sockets and/or integral antennae.

Additional standards or specifications may be required for equipment such as that intended for connection to the Public Switched Telephone Network (PSTN) or other systems.