The Model LN1G18 is a broadband, self-contained linear amplifier for laboratory applications requiring instantaneous bandwidth and low noise. It has been designed specifically for use with the CER2018A receiver and AR RF/Microwave Instrumentation ATH1G18 or ATS700M11G antennas. The LN1G18, with its low noise figure, can be used to increase the sensitivity of receivers with relatively high noise figures. It also is useful for amplifying low level signals to more useful levels for driving power amplifiers and other similar applications. The LN1G18 contains an internal bias tee which supplies DC power to the low noise preamp via the RF cable from the CER2018A. DC power can also be connected externally.