Comtech PST Corp. received a $1.1 million order for high-power amplifiers from an unnamed maker of aviation electronics and communications systems for high power amplifiers, Comtech Telecommunications Corp. announced June 12. The amplifiers are used in satellite communications systems that provide mobile airborne-to-satellite-to-ground communications as well as provide operators with the ability to access Inmarsat’s Aero-H and Aero-I service.