>So to put a number to your question "likely better than half the time". I'm not sure how you get from 'because communications between arbitrary point A and an

>So to put a number to your question "likely better than half the time". I'm not sure how you get from 'because communications between arbitrary point A and and arbitrary point B are sometimes impossible on band C' that "likely better than half the time" communication will be impossible on every useful band to any useful place.