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LO Configuration Tool

Selecting Tools $\rightarrow$ ALMA LO Configuration Tool in theMenu will launch a separate window which provides an interface to theALMA LO Configuration Tool. This is an experimental tool and intendedfor expert users only. It implements the same algorithm which will beused to set up the backend electronics when the Scheduling Block isrun at the telescope.

Upon clicking the Calculate LOs button after having defined thereceiver type, the LO1 (optional) and sideband specifications in the Settings panel, the tool will display the various parameters inthe TuningParameters panel.

The hardware does not always allow all frequencies to be set preciselyas requested. The weight parameters are used to apportion the errorsaccordingly. The sideband preferences allow selection of the 1st LOsideband . A choice of NoPreference will try touse both sidebands when supported by the hardware. Choosing a specificsideband will eliminate the other from the solution set.



The ALMA OT Team, 2011 May 20