Engineering Development Array 2: design, performance, and lessons from an SKA-Low prototype station

We present the Engineering Development Array 2, which is one of two instruments built as a second generation prototype station for future Square Kilometre Low-Frequency Array. The array comprised 256 dual-polarization dipole antennas that can work phased or standalone interferometer. describe design and details changes from previous instruments, well motivation changes. Using an imaging interferometer, we measure sensitivity at five frequencies ranging 70 to 320 MHz.