Hello again,
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Yes, scratch everything I said earlier. ?For FSK on the IC-7610, I most certainly need to be in "RTTY" mode on the rig.
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The reason for the offset in my screenshot is that the sweet spot frequency for FSK RTTY is at 2210 Hz, not 1500 Hz for AFSK RTTY. ?Once I set the sweet spot frequency in fldigi, the signal was centered on the fldigi waterfall.
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After extensive Google searches, I found this document linked in a post written by Bo, W4GHV, in the Winfldigi groups.io group:
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I have contacted Bo, and he confirms this is the latest document (written a few years back). ?He has volunteered to assist me if I run into any troubles.
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Thanks, everyone, for your inputs!
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Larry KS9J
Larry Haak (KS9J)