In a message dated 04/08/2005 11:52:29 Eastern Daylight Time, wa0sxv at mellinger.com writes: << The manual notch in the PRO is in the IF. Autonotch in AF. >> Thought both notches were digital, at the low i.f. I find both the be very effective, 40 meter SSB in the late afternoon is actually usable when I use my PRO. 73, Blair k3yd