[TowerTalk] 2m intermod filter placement

[Drax Felton]

I recently put up a phased set of four 2m meter antenna for EME to find out
that the front end of my IC-9100 is being blasted by pager intermod.

I got a notch filter for the frequencies involved from PAR Electronics.
Question is now:   Where inline is the best place to put the filter?

 

Before or after the mast mounted pre-amp?  Or down at the radio end?

 

 

KB3X