VHF Preamplifier for 144MHz band (2 meters) with integrated VOX circuit, bias tee and coaxial relay on board able to work without any external accessory up to 100W. Perfect for satellite use, contest, right and eme. 88-108 MHz notch filter in input. Low noise figure. Circuit designed with components of the latest generations.Ultra Low Noise INNOVATIVE Preamplifier available for the 2 meter band. Low noise figure (type 0.35dB.