Revolution (1989). Lead engineers from the former Tesla company formed the ERA Company in Pardubice which produces the current generation VERA family of sensors. Timeline October 30, 2006 - Rannoch Corporation announced the acquisition of ERA a.s. located in Pardubice Czech Republic. February 6, 2007 – Rannoch Corporation has officially changed its name to Era Corporation. July 2008 - Era Corporation was acquired by SRA International. November 22, 2011 - ERA Pardubice was bought by Czech arms and aircraft trading company Omnipol. Users Estonia Indonesia Malaysia Pakistan Slovakia Vietnam United States See also General topic ELINT/ESM Similar systems Kolchuga – a similar system developed in Ukraine Kopáč – the first generation Czech ESM TDOA system Ramona – the second generation Czech ESM TDOA system Tamara – the third generation Czech ESM TDOA system BORAP – a contemporary Czech ESM triangulation system YLC-20 - a Chinese development of Czech Tamara first revealed in 2006 Similarly abbreviated electronics Vision electronic recording apparatus, more commonly known as VERA References External links ERA Company PDF company presentation Czech ESM/EW unit site Radiofrequency receivers