Upper: Map of nonthermal Galactic-radio-emission distribution (in terms of brightness temperatures T_B), obtained at UTR-2 for 20 MHz (Sidorchuk et al. 2021). The horizontal black strip schematically represents the Galaxy’s intersection in the UTR-2 sky scans at DecJ = 0°. A white square indicates the position of NGC 3521. Middle: Averaged scan for Jan. 20–22, 2022 (daily sequence of total signal power changes at antenna output); 24–32 MHz band; integration time 30 s. Bottom: Averaged scan for Feb. 3–5, 2022; 24–32 MHz band; integration time 30 s.