"Dave, AA6YQ" wrote in
news:K2NPa.40359$N7.5280@sccrnsc03:

You'll typically find PSK63 in the upper 1500 hz of a PSK sub-band. On
20m, for example, look between 14072.5 and 14074. I often call CQ on
14073, and am often rewarded with a PSK63 QSO.

Thanks for the hint.