Frequency Control - Agilent Technologies 8510XF Operating And Service Manual

Frequency Control

Mixer Locations
System Maintenance
Theory of Operation
The preceding diagram is a simplification, in that it shows a total of four
mixers. For any given test frequency, four mixers are sufficient to generate
the four IF inputs required by the network analyzer. However, four mixers
are not sufficient to cover the entire frequency range of the 8510XF.
The maximum frequency range of the 8510XF (45 MHz to 110 GHz) is
divided into four bands, each of which employs its own set of four mixers:
Band
.045 to 2 GHz
2 to 50 GHz
50 to 85 GHz
50 to 75 GHz
75 to 110 GHZ
Depending upon the frequency range of the model and option selected, the
8510XF can have up to 16 mixers.
Figure 5-3 shows the locations of the mixers for different frequency bands in
an E7350A/E7352A with Option 005. For the sake of simplicity, the figure
shows only half of the test set. An actual test set would include another test
head, and another pair of low-band mixers in the controller; the total number
of mixers would be doubled.
Note that all bands make use of the same output/input path, the same
connection to the DUT, and the same directional couplers.
5-10 8510XF Network Analyzer Systems
Included In
8510XF systems with Option '005
All 8510XF systems
E7340A systems/E7342A subsystems
E7350A systems/E7352A subsystems
E7350A systems/E7352A subsystems