oh yeah, and not to forget my other thought, a repeater like this would be dangerous in the event of a very strong pulse from a solar flare or filament eruption... this is also why i talk about having a tin shield on an underground structure as a refuge against the increasing amount of radiation that is getting to us because of the galactic current sheet... a repeater would be a device that might have some use above ground in normal conditions but it would definitely need to have a cut-out so when the voltage rises too high it stops repeating the signal