The Belimo B238ARX24MFT95 1.5NPT 19Cv 24v NSR 0-135ohm is a high performance, low noise, 24 volt, 1.5 inch NPT, axial lead, RF power amplifier. It is designed for use in high power RF applications such as cellular telephony, satellite, and microwave systems. The Belimo B238ARX24MFT95 1.5NPT 19Cv 24v NSR 0-135ohm is a high performance, low noise, 24 volt, 1.5 inch NPT, axial lead, RF power amplifier. It is designed for use in high power RF applications such as cellular telephony, satellite, and microwave systems.