Open invitation to tender, deadline 10.04.2017, for engineering services for the upgrading of radio-communication equipment from OUC to DAB+ in motorway tunnels in Geneva, Vaud, Fribourg Neuchatel, Jura and Bern cantons. Also Zurig, St. Gallen, Glarus and Schaffhausen cantons. The contract duration is 01.06.2017 to 30.06.2020. Contact ASTRA, Winterthour, e-mail beschaffung.winterthur@astra.admin.ch and visit http://www.simap.ch/shabforms/servlet/Search?NOTICE_NR=954353. Contact Ofrou, Estavayer-le-Lac, tel +41 58 461871, email marchespublics.estavayer@astra.admin.ch. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=068158-2017. Ref.n. N99.99 150050. 10/17.