HP 8360 User Handbook Manual page 411

Specifications
Accuracy (dB)4
Specifications apply in CW, step, list, manual sweep, and ramp sweep
modes of operation.
Power
> -10 dBm5
< -60 dBm
Flatness (dB)
Specifications apply in CW, step, list, manual sweep, and ramp sweep
modes of operation.
Power
< 2.0
< 50 MHz.
outside of that range.
Frequency (GHz)
and 5 20 > 2.0 and 5 40
> 2.0
Frequency (GHz)
and < and < 40
20 > 2.0
fl.O
> 40