4-5
Applications
Applications summary
The 2026Q Multisource Generator supports a number of measurement applications which require
two signal sources to be coupled together. In addition to automatically selecting the most
appropriate signal routing format, the applications mode also automatically couples the sources
together and modifies the descriptions of the parameters entered to best suit the application. This
considerably simplifies control of the sources and provides a clearer description of the
measurement being performed.
Whenever an application is selected, the signal routing can be displayed in graphical form to
ensure that the user understands how the sources are connected to the RF connectors. In addition,
a stylized spectral diagram can be displayed which shows how the main control parameters are
used in the test.
Applications selection
To select one of the predefined applications press the
[Appl’n Menu]
key on the
Setup Menu
. This
causes the
Applications Selection Menu
similar to that shown in Fig. 4-4 below to be displayed.
Fig. 4-4 Applications selection menu
This menu enables you to perform two-tone intermodulation distortion tests on an amplifier, or
carry out a receiver selectivity test. Intermodulation tests require the presence of a strong
interfering signal whose intermodulation products fall in the receiver’s or amplifier’s input
frequency band.
