We repair and calibrate Communication Test Equipment specializing in Service Monitors.  We specialize in IFR and Motorola Service Monitors.The owner of Cardinal has been servicing this equipment since he organized the first Midwest Cushman Service Center in 1973.  In 1985 he formed Triton Electronics with a partner.  In 1999, Cardinal Electronics was organized splitting off the Service Monitor business from Triton Electronics.

Each calibrated instrument is returned with a dated calibration sticker as well an NIST traceable certificate identifying the instrument, owner, calibration instrument used, dates and signatures.