There is a bit of disagreement between the User Manual and the Datasheet.
The User Manual, on the subject of the tracking generator says:
For example, if the sweep is set to scan from 1 MHz to 10 MHz, the TG output frequency will change from 1 MHz to 10 MHz in coordinated steps with the sweep.
However, the Datasheet says:
Tracking Generator
Frequency range 5 MHz~1.5 GHz
Can someone confirm that the lowest frequency for the tracking generator is really 5MHz?
I can't see any good reason to limit it like that.