Feature●Calls between various types of ft and the tower within 190KM in open space can be received.●Ad banD pasilter, 3355 High , NE602 mixer, MC1350 progs in place, can receive 118-136MHz AM signal.●【12V Power ply】12 V power ply, PCB board size is 9.2 * 7.5cm, which can be placed in 97 * 40 * 120mm aluminum chassis to use.●The board has to listen to the AGC circuit to ere comfort, while ading the squelch noise.●Precautions：Due to the VHF ba have siar propagation - rectil propagation of light, but the receiving location accible from the port, distance(greater than 25Kms) must be installed VHF antenna con seent gain antenna; receiving location between the port large obstructions (Including but not limited to tall buildings, mountains, towers) is always around the obstacleDescription Specification: