Spectrum Microwave, a part of Spectrum Control, provides a range of products and services. It operates in Pennsylvania, Florida and Delaware. The company has a design center in Columbia in Maryland. Spectrum Microwave offers cavity filters, switches, detectors, diode drivers, linear amplifiers and mixers. It also provides harmonic generators and direct digital synthesizers. The company offers product obsolescence, engineering and testing services. In addition, Spectrum Microwave has achieved ISO 9001 certification. It operates rapid filter centers and provides products under the 300 and 390 series.