[TenTec] Omn VI

[Mike]

I have two questions for the group that I hope someone can provide an 
answer.  Several years ago I purchased an Omni VI that was reportedly 
upgraded by the factory to an Omni VI Pro.  I never gave it any thought 
until recently.  How can one determine if the mod did occur?  I tried to 
contact TenTec, but that didn't work.  Second question is about INRAD.  
Has anyone had experience with their "Roofing filter mod" or the 
"receive audio mod" for the Omni VI?  If not, with those specific mods, 
any experience with their CW filters?  I thank you in advance.

73, Mike K4ELV