[TenTec] LP audio filter

[Paul DeWitte K9OT]

I have an Omni VI+ with the LP filter. It is set at 600. When I switch it in
I seem to hear no difference. Am I missing something or maybe it just does
not work?

My main interest in winter is 80&160m DX, and have never heard any
difference when switching it in or out.

Any comments?

Thanks and Merry Christmas to all on here wheather you are a contributor or
lurking in the weeds and just read the posts.

73 Paul K9OT