[TenTec] Invoking OM7 500 Hz filter ?

[bcarling at cfl.rr.com]

Hello,

I now have a clean sounding OMNI VII after doing a master reset. Thanks guys. 

Does anyone know how to invoke the 500 Hz Collins filter once it is installed and enabled?

I have read the manual through twice and still can't figure out how to switch from 2.5 kHz 
filter to 500 Hz !!  Maybe I am not too smart. The book seems to dance all around the topic 
but never tell you how!

73 - Brian, AF4K

Brian Carling, Radio AF4K