Has anyone tried using either a 250 Hz or 500 Hz filter for PSK31 reception? My Icom IC-746 (non-Pro) has no filters installed, and is wide as a barn door on USB for PSK31. I wondered if either of these filters would help, or would they be too narrow?
The pass-band shift does a fair job of eliminating QRM from one side or the other of the selected frequency, but when there are two very strong signals within 2 Khz on each side at the same time, they just aren't effective on both. Any input appreciated! Thanks in advance es 73 Dave KB3MOW
