Service manual

8 Agilent 85309A H40, H41, H42 Operating and Service Manual Modification
Revised General Information
Agilent Technologies
85381A Cable Length
Limits
The following figure defines the allowable maximum cable lengths between
the LO source and the Agilent Technologies 85309A LO/IF distribution unit,
and between the Agilent Technologies 85309A and the external mixers. The
cable lengths are provided when using standard Agilent Technologies
85381A RF cable assemblies and with MicroCoax type UFB311A RF
low-loss cable assemblies.
The standard mixers used in Agilent Technologies antenna measurement
systems are the Agilent Technologies 85320A test mixer and the Agilent
Technologies 85320B reference mixer. Both mixers operate from 2 to 18
GHz in fundamental mode, and from 6 to 26.5 GHz in third-harmonic mode.
Figure 3 shows the RF power levels required for proper operation with the
Agilent Technologies 85320A/B mixers and various other mixer products
provided by Agilent Technologies.