2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/213767I discuss several scenarios to explain properties of the radio transient source GCRT J1745-3009. Namely, a highly magnetized neutron star on the propeller or georotator stage, a transient propeller, and an ejector in a binary system are discussed. Simple populational estimates favor the transient propeller model.8 pages, no figures, Talk at the conference "VA100 Evolution of Cosmic Objects Through Their Physical Activity", Yerevan, Armenia 2008. Subm. to the proceedingsAstrophysicstext