[Elecraft] K3 CW decoding.

[Mike Weir]

Good afternoon, during the CQ CW contest the other weekend I used the CW decoder for the woodpecker code speed. I did notice it was picking up a ton of noise and trying to decode it. Is there a setting that reduces the pickup of static noise that is being converted into nonsense letters. My settings at the time were 250Hz filter and threshold was at 3 under decode settings and speed was at 5-40 wpm. 
Thanks in advance. 
Mike Weir
VE3WDM