Must have been "club" fingers that made me enter FT-815. Must be a newly released rig [;> International Radio Collins Filter #705-E 500 Hz CW filter. Works with Ft-817, FT-840, FT-840 and FT-897 HF Xcvrs. Asking $90 Phone (925)443-1769 or reply this message 73, Don, W6OA