Failing Spektrum receivers?

[Snipin_Willy]

Finally got the chance to bring my RC8 conversion to life today, but only for a moment. The receiver I put in it has been working flawlessly the last time I used it, SR3000, really basic spektrum receiver. But now the binding drops in and out at random at a fairly frequent rate (about a 2 second rate). Ok no big deal, I'll grab a spare. Put in one of my spares and I get the same thing but with less frequent drop outs (every 6 or 7 seconds). How well known is this problem?