RF amplifiers are devices that accept a varying input signal and produce an output signal that varies in the same way, but with larger amplitude

Coaxial cables have one conductor insulated with a dielectric material and then surrounded by the other conductor, usually referred to as the center conductor and shield.

Signal conditioning products provide amplification, filtering, converting, and other processes required to make sensor output suitable for reading by computer boards.

Fiber optic receivers are instruments that convert light into electrical signals.

Antennas are structures or devices used to collect or radiate electromagnetic waves.

Specialty communication services are specialty or proprietary services related to voice and data communications.

Speakers produce and transmit sounds carried by electrical or radio signals.