@skywatch The naughty step is my second home... I understand what you're getting at, played with radio and antennae most of my life although only into the uhf bands, as I found out to my surprise, many have on this forum... But the problem remains as @Nca78 pointed out the range for a given input power, dodging or penetrating obstacles in the modern domestic environment with composite structures and steelwork becomes progressively more problematic with higher frequencies, it is as you noted yourself rather pernickity. At my age, pulling my hair out is not an option hence my choice of uhf for the system here, lower power input, longer battery life, keep what hair there is...