Signal generators and waveform generators are used to test and align all types of transmitters and receivers, to measure frequency and to generate a signal, waveform or noise source.

Vector network analyzers are instruments that measure the complex transmission and reflection characteristics of two-port devices in the frequency domain.

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

RF power dividers and power combiners are circuits that accept an input signal and deliver multiple outputs equal in phase and amplitude.

Impedance matching networks are electrical circuits which, when connected between two networks, match the output impedance of the source (the first network) to the input impedance of the load (the receiving or second network).

Fiber optic couplers are optical devices that connect three or more fiber ends, dividing one input between two or more outputs, or combining two or more inputs into one output.

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