the lgl group, inc., together with its subsidiaries, engages in the design, manufacture, and marketing of frequency and spectrum control products in the united states and internationally. the company operates in two segments, electronic components and electronic instruments. the electronic components segment offers xtal, clock oscillators, vcxo, tcxo ocxo, and docxo devices; and radio frequency, microwave and millimeter wave filters, diplexers, and solid-state power amplifiers. it also provides filter devices, which includes crystal, ceramic, lc, tubular, combline, cavity, interdigital, and metal insert waveguide, as well as digital, analog and mechanical tunable filters, switched filter arrays, and rf subsystems. this segment's products are used in infrastructure equipment for the telecommunications and network equipment industries; and electronic systems for applications in defense, aerospace, earth-orbiting satellites, down-hole drilling, medical devices, instrumentation, industrial