Would like to break out of the typical QRP Portable discussion and try to get feedback on portable small profile antennas than can be worked. Maybe hand in a zig-zag configuration on a wall or ceiling. or an inverted L on a wall to ceiling in an apartment. Does anyone have good reference material on small profile antennas? given that a typical bedroom will have seven foot ceilings and maybe ten to 15 foot square space on that ceiling. Any real word test results do that?