HR Smith Group of Companies is a large family owned avionics manufacturing company which has been serving the aircraft industry for nearly 50 years. The Group consists of four companies: HR Smith (Technical Developments) Ltd Techtest Limited Specmat Inc Chunc Ltd Specialising in Search and Rescue Equipment, Airborne Antennas, Static Dischargers, Radomes, Emergency Locator Transmitters, Homing Systems and Avionics Test Sets. With over 85% of our business being exported worldwide the HR Smith Group of Companies is a leading manufacturer and supplier to some of the largest names in the aviation industry. All products utilise advanced technology and are developed and manufactured to the highest standards by a dedicated team of professionals at our UK and US factories, offering a wide range of solutions for both commercial and military applications. The HR Smith Group of Companies has full Quality Certification including BS EN ISO 9001:2008, EN9100:2003, AS9100 Rev B,  CAA Part 21, EASA & CAA Part 145 and UKMOD DAOS. In addition many of our products carry specific TSO, ETSO, FAA PMA and OEM approvals.