Multipsk 4.45 cant handle Frequencies above 4162MHz. Using here SDR-Console and DXLab Commander. The Commander gets the correct Frequency from SDR-Console. Transverter Functions are off. Under 4162 MHz the readings of the Frequency are equal. If you tune higher the Frequency display in Multipsk stop counting.
Examined this on QO-100.
Its maybe nice to have a Function to substract 8089.5MHz to get the correct TX frequency in the 13cm Band for logging.
73s Holger, DF6DBF