Attenuators

An attenuator is a device that reduces the amplitude or power of a signal without significantly distorting its waveform. It is a passive device that can be considered the opposite of an amplifier. While an amplifier provides gain, an attenuator provides loss. Fixed attenuators dissipate power and improve impedance matching. In signal measurement, attenuators are used to lower the signal amplitude by a specified amount. A GPS attenuator on a coaxial cable can reduce the GPS signal level before it is used to test equipment. All GPS Source attenuators can pass DC bias voltage through the device or block the DC path without affecting the GPS signal.

Combiners

A combiner is a device that takes the input signal from two GPS antennas and combines the signal into one receiving GPS unit. GPS Source combiners will pass DC bias voltage through the device to power both antennas.

Filters

A filter is designed to eliminate unwanted signals. It can be configured to pass only the L1 GPS frequency or just the L5 GPS frequency. A good filter features high out-of-band rejection, including excellent sideband rejection. The standard configuration for non-powered attenuators, combiners, and filters is to pass DC on the input(s) and output(s). For powered attenuators, combiners, and filters, the standard configuration is to pass DC on the input(s) and block DC on the output(s). Special configurations are available upon request.