Anyone have the little 4 pole SSB filter that came with the Argosy or Corsair (9 MHz IF) ? I put a model 220 (8 pole) filter into my OMNI in the 1.8 position and it clears a lot of QRM but is narrower than I'd like. The 4 pole filter would probably be ideal for me. I have a 1.8 KHz narrow SSB filter I'll sell or partial swap. Clark WA3JPG