According to "European Organisation for Safety of Air Navigation" and FAA, on TCAS all Resolution Advisories are inhibited below 1000ft. https://skybrary.aero/

According to "European Organisation for Safety of Air Navigation" and FAA, on TCAS all Resolution Advisories are inhibited below 1000ft. https://skybrary.aero/articles/tcas-ii-ra-very-low-altitude https://skybrary.aero/articles/tcas-ii-ra-very-low-altitude https://www.faa.gov/documentlibrary/media/advisory_circular/tcas%20ii%20v7.1%20intro%20booklet.pdf https://www.faa.gov/documentlibrary/media/advisory_circular/...