3-4yr old BSC321 (or was it a 621?) lnbf acting weird today, getting signal levels of only 10-40, but the quality readings are usual and normal, 75-95. Seems to be scanning in everything , but for some reason the signal level is near to nothing. This is one of those old gray plastic cheapos I have had three years or more but has always worked ok. I factory defaulted the reciever just for fun tonight, and doesn't seem to make any difference. Still have good ku , just unusual readings. Maybe I'll swap out for another style tomorrow and see what happens, this one may be about to barf.