Alternative method of aligning transmit frequency

[KG7YSX]

My other transceiver is a FT-897, which does not have a waterfall. So, I openened up JS8Call with that rig, and then JS8Call with my Tru SDX and a different computer, and used the waterfall of JS8 to align my menu 8.3 Ref freq. By transmitting with the Tru SDX, and watching with the Yaesu, I was able to adjust the transmit frequency within about 4 hz.