1. Set channel width to 20mhz
2. Set TX power to full on both sides
3. Turn off auto frequency, choose a channel as its busy hoping now. (run the spectrum analyser to see which channel is the quietest)
4. If after these settings link signal is still -70 or more you need to align both sides at the dish as moved. At this distance you should see about -40/-45db. If you see under -40 after alignment bring back your TX power until your signal is -50db which is ideal.