Iz oos, Arv, and all...
That test was CW mode so harmonics would be the prime issue. It is required
to be SSB for the spurs (and harmonics) to appear. Its the difference between
how one is done CW is direct Frequency against the other SSB which is converted
fro 45mhz to the signal frequency.
If you do not keep track of the mode you will run off lost into the weeds.