Target Menu

On switching over from remote to manual control, the CMU preserves the current measurement and generator states and the current signalling state (if a Signalling test mode is active). The instrument tries to open the menu that the user is likely to prefer, i.e. the measurement menu of the current, running measurement. If several measurements are running in parallel, the instrument applies the following selection rules to resolve the ambiguity and determine a preferred menu:

• The preferred menu must belong to a measurement that is in the RUN or HLT state (see section Measurement Control Commands and States). RDY measurements and suppressed measurements are discarded.
• Measurement menus of the main application have the priority over configuration menus (e.g. for signalling and generators) and menus for additive applications (e.g. an Audio measurement that is performed in the context of a GSM-MS main application).
• Out of several running measurements of the same hierarchy level, the last one that was initiated (INITiate:… or READ:…?) is preferred.

If no measurement is in the RUN or HLT state, the last measurement that was aborted (ABORt:…) is preferred.