YX023-PCS - Directional Signal Antenna Upgrade provides additional coverage by boosting the outside signal strength in the direction it is pointed. This antenna provides 12dBi of gain to strengthen the signal. 1850-1990 MHz outdoor panel antenna. 13dBi gain. Fits on masts up to 2.5"OD with included hardware. F female connector on the rear of antenna. 7.25"L x 6"W x 2"D.