Gregorios Kythreotis on X: "Antenna of UTR-2 low frequency radio telescope, Kharkiv region, Ukraine. Consists of an array of 2040 cage dipole elements. https://t.co/IFXrMevrYz" / X
Cage aerial - Wikipedia
40 meter Cage dipole - Ni4L ANTENNAS & ELECTRONICS LLC
Ham Radio - An end fed half wave cage antenna. How much wider bandwidth does it provide? - YouTube