Hi gang. Just purchased a FL-53a Icom CW filter, 250 Hz (455khz IF) for my Icom 765. There is a mod to allow the 765 to access this filter on RTTY. Before I do the mod, a question for those that have a 250 Hz filter.... Have you found this to be to narrow for RTTY contesting? Any other comments? 73 de Rick W1TY/W2RTY