[Elecraft] PSK-31 Decoding

[pastormg2 at verizon.net]

Been trying to decode PSK 31 the past 2 nights with no success.  I received my K3 2 days ago and I've set the mode to Data plus pushed the decode button on the right and selected PSK 31.  But for some reason when I go to the 14,070 on 20 meters it will not decode the PSK.  Perhaps there is a fine tune that needs to be activated so that I can do this.  I have no problem on CW, but PSK 31 is a challenge.  Any suggestions?  Thanks!!  Mark KB3Z