[TenTec] OMNI VI+ filter anomaly

[Dave Edwards]

Anyone have tight CW filters in their Omni VI+ ??

I'd have to pop the bottom cover to see exactly what I have, but I know I loaded it up with 
tight CW options. 

If I listen to a S9 +10db signal on 250hz, and press F1, the signal strength stays the same. 
If however, I press F2, the signal drops to about S5. 

Could there be a mistake in the insertion of the filter, or what might I check If I flip it over and look inside there?

Thanks for any thoughts on this.

.....Dave