I run SATPC32 on a Win10 tablet portable with my ICOM 820H. Make sure your clock and keps are current (sync immediately before the pass) On FO-29, you shouldn't have to move the TX offset more than +/- 1Khz to find yourself. On my current tablet, it was +800Hz, on a previous laptop, -600. You're adjusting for PC clock tolerance, temperature, location accuracy, and VFO accuracy. Once you do, you can set that as a permanent offset so you don't have to do that again: https://amsat.org/pipermail/amsat-bb/2006-December/001991.html

AO-7 is much tougher, as some of the published doppler.sqf files are 3 to 4Khz off from reality (your mileage may vary)

The XW's seem to be spot on, with little or no adjustment.

Bill W1PA