The object transmitter in Xirio corresponds with the typical concept of radio frequency transmitter, although the finished system of transmission is contemplated within this object, that is, in addition to the physical transmitter, the radiating system and the specific parameters of emission.

Transmitters catalog allow to create in the different studies, transmitters preconfigured with values set by the user.

The user has available filter by service and by name of the transmitter catalog:

•Filter by service: It allows to obtain all catalog elements of a selected radio service. This filter consists of cascading drop-down lists, so that to select a service it is necessary to select a subcategory before, and to select a subcategory it is necessary to previously select a category.

•Filter by name: This textual filter supports wildcard characters such as the asterisk (*) or the query (?).

•Show only favorite items: In addition, the user can define their favorite catalog items to perform a filtering that only shows these items

Once the user clicks "Search" button, a filter will be combined with all the options selected by the user. In the case that there is no entry that fulfills all the selected features, the lower list will be empty.

The user can modify, edit or consult each catalog element using the transmitter edition dialog.

From any transmitter it is also possible to create a catalog element automatically from the parameters of this, by the action "Create catalog element from the transmitter"