Trilithic has announced three staff promotions in its broadband instruments group.John Bush has been promoted to senior systems sales engineer within the broadband instruments group. In his new expanded role, Bush will be responsible for working directly with customers at the senior level and bringing their ideas to fruition, contributing to new initiatives and leading product development for the Broadband Instruments group. Bush joined Trilithic in 2004.Mark Darragh has been named product manager for Trilithic's leakage systems in the broadband instruments group. In his new role, Darragh will further develop Trilithic's leakage product portfolio. Darragh joined Trilithic in July 2007.Daniel Dillon has been promoted to director of product marketing for mobile systems applications within Trilithic's broadband instruments division. In his new expanded role, Dillon will be responsible for product development and marketing of all mobile devices and software for the group. Dillon joined Trilithic in 2006.