Electromagnetic (EMI) filters and radio frequency interference (RFI) filters purify signals by attenuating the high-frequency RFI (typically 150kHz and up) and passing the low frequency EMI.

Resistors and potentiometers are passive electronic components that oppose the flow of either alternating current (AC) or direct current (DC). 

RF transmitters are electronic devices consisting of an oscillator, modulator, and other circuits that produce an RF signal

RF attenuators are circuits that reduce the power level of a signal by a certain amount (gain), with little or no reflection. They reduce the output signal with respect to the input and measure the power reduction in decibels (dB).  

RF modules are partially finished circuits that can be incorporated into larger designs

RF waveguide components are circular, elliptical or rectangular metal tubes or pipes through which electromagnetic waves are propagated in microwave and RF communications. The wave passing through the medium is forced to follow the path determined by the physical structure of the guide

RF power dividers and power combiners are circuits that accept an input signal and deliver multiple outputs equal in phase and amplitude. In hybrid varieties, the signal is split into different phases with equal amplitude

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 transceivers are electronic devices that receive and demodulate an RF signal, then modulate and transmit a new signal

Fiber optic attenuators are devices that reduce signal power in fiber optic links by inducing a fixed or variable loss. They are used to control the power level of optical signals at the outputs of light sources and electrical-to-optical (E/O) converters. They are also used to test the linearity and dynamic range of photo sensors and photo detectors.

RF waveguide attenuators are used to reduce the power level of a signal by a certain amount (gain), with little or no reflections. The output signal is reduced with respect to the input

RF diodes are designed to handle high-power radio frequency (RF) signals in stereo amplifiers, radio transmitters, television monitors, and other RF or microwave devices

Adjustable speed drives alter the speed of a driven shaft to a speed selected by an operator

RF filters and microwave filters are devices that pass or reject signals by frequency. Basic types include bandpass filters, band reject filters, low pass filters, and high pass filters

RF phase shifters are twin-ported devices that alter the phase of an output signal in response to an external signal