Features: With the design of the folding oscillator, five units and V reflectors, it has a strong directional and wide frequency band. The printing plate impedance matching device can effectively receive and transmit digital TV signals. It is convenient for users to install and use the cylindrical support rod in different diameter. The number of compatible dvb-t/H, dvb-t 2, DMB- T/H, isdb-t, atsc-t, ADTB- T, etc, TV format.