I am installing a point to point bridge link using 1400 briges w/power injectors. The bridges are installed but the link goes up and down about every few minutes. When it does connect, it starts out at a low dbm but eventually ends up in the 80's and then loses connection again. We installed a couple of other briges in another location and didn't have any problems at all. I know the distance between sites is way withing specs and there is nothing that could block this link. Any ideas as to what could be causing this. Thanks...