1.This AM antenna is the Master antenna; it can work alone or can work with up to two slave antennas. 1.This AM antenna is the Master antenna; it can work alone or can work with up to two slave antennas. 2.Adopts the most advanced DSP+FPGA technology.3.Detect Range: AM Soft label: each side 70cm AM Hard tag: each side 110cm4.Dimensions: 135(H)x33.5(W)x9.2(D)cm 5.Packaging size: 144x40x12cm NW:9kg ...