commiss decis juli basic paramet command control signal subsystem relat tran european high speed rail system notifi document number text eea relev ec commiss european commun regard treati establish european commun regard council direct ec juli interoper tran european high speed rail system articl thereof problem frequenc radiat intens spot ground train transmiss interfac eurobalis rais sweden meet held juli committe set articl direct ec european associ railwai interoper aeif confirm session held octob eurobalis interfac basic paramet command control signal subsystem aeif present analysi committe meet held februari member state request situat sum term radio frequenc need command control signal subsystem avoid interfer frequenc band ecpt pr radio equip erc decis march time retain level telepow urgent lai eurobalis spot interfac gsm ground train radio order jeopardis plan ertm project test turn delai advers affect place servic line tran european high speed network decis impact signal system servic provid brought back servic reorganis aeif account exist system draft quot command control signal quot technic specif interoper tsi recommend chester revis budapest relat reserv railwai frequenc mhz band decis ecpt work group fm relat eurobalis tallinn updat recommand result therefrom provis decis keep opinion committe direct ec adopt decis articl frequenc telepow downlink eurobalis type beacon mhz radiat intens metr dbμa articl frequenc band gsm radio link mhz train ground link mhz ground train link articl decis address member state brussel juli commiss neil kinnock member commiss oj