Wikipedia
Nautel
Nautel Ltd. is a Canadian manufacturer of AM, FM and digital TV broadcast transmitters, navigational radio beacons, Differential Global Positioning System ( DGPS) transmitters, medium frequency (MF) telegraph and NAVTEX transmitters, and high frequency (HF) amplifiers for dielectric heating applications. Nautel is best known as the first company to develop a commercially available fully solid state broadcast transmitter.