Specifications

3 dB attenuator
Diplexer
LO
IF
Mixer
Connector type varies
with option number
RF input
LO input
IF output
Type-N
connector
3 dB attenuator
Mixer
RF input
LO in
IF out Det. out
LO
IF
Connector type varies
with option number
Type-N female connector
57
85320A test mixers
The85320A,85320A-H20and85320A-H50containadiplexerthatcombinestheLOinput
and IF output onto a single coaxial connector, which is useful for systems using a
rotary joint.
Figure 42. 85320A test mixer.
85320B reference mixers
The 85320B, 85320B-H20, 85320B-H50 contain a leveling coupler/detector that provides
alevelingsignaltothe85309BLO/IFdistributionunit,ensuringleveledLOdrivepower
to the mixer.
Figure 43. 85320B reference mixer.