electrical measuring and testing instruments for evaluating, measuring, recording, capturing, storing, generating, and analyzing radio frequency (RF) signals, digital signals, RF signal power, RF signal voltage, RF signal current, and RF signal phase angle, RF signal strength, RF signal power waves, RF signal direction, RF signal frequency, RF signal harmonics, RF signal bandwidth, characteristics of antennas, and transmission parameters of antennas; electrical coaxial line power attenuators;...

Computer hardware and software for avionics displays and data entry devices therefor; aeronautical wireless communication machines and apparatus; electronic wireless communications instruments and components, namely, wireless transmitters, receivers and data links; satellite and microwave communications apparatus to transmit and receive communications between a helicopter and a marine vessel, or between a helicopter and a satellite