DIAMOND A1430S7 7 elements directive antenna dual-band 144 / 430 mhz Directional antenna (3EL.) 144MHz (5EL.) 430MHz Type 3 elements Yagi for 144, 5 for the 430 MHz 144-146 MHz frequency range from 430 to 440 MHz Gain 7.5 dBi (144 MHz) more Manufacturer: diamond Reference A1430S7- DESCAT