I am having trouble receiving Southbury PD.the signal indicator shows a strong signal but the audio sounds digitize and distorting.I can receive all the other Southbury frequencies with no trouble at all.Here is the frequency:155.03250 Lic:WQAS861 type:RM Police Mode:APCO-25. I am using a bcd996t.The audio type setting is set to all ,att is set to off.Any ideas?