| Microsoft DirectX 9.0 |
The ILocator base class interface is implemented (through its derived interfaces such as IATSCLocator) on Locator objects that contain tuning information about the tuning space. The base interface is never used directly, but only through the derived interfaces that are specific for a given network type. Locator objects can be created dynamically by Guide Store Loaders that have the necessary information about the tuning space, or a default locator for a tuning space can be installed by the third party who installs the tuning space. In any case, applications never create or examine locators except in certain testing or debugging scenarios. All Locator objects also support IPersistPropertyBag.
In addition to the methods inherited from IUnknown, the ILocator interface exposes the following methods.
| Method | Description |
| Clone | Creates a copy of the Locator. |
| get_CarrierFrequency | Retrieves the frequency of the RF signal. |
| get_InnerFEC | Retrieves the type of inner forward error correction that is used. |
| get_InnerFECRate | Retrieves the inner FEC rate. |
| get_Modulation | Retrieves the modulation type. |
| get_OuterFEC | Retrieves the type of outer forward error correction that is used. |
| get_OuterFECRate | Sets the outer FEC rate. |
| get_SymbolRate | Gets the QPSK symbol rate. |
| put_CarrierFrequency | Sets the frequency of the RF signal. |
| put_InnerFEC | Sets the type of inner forward error correction that is used. |
| put_InnerFECRate | Sets the inner FEC rate. |
| put_Modulation | Sets the modulation type. |
| put_OuterFEC | Sets the type of inner forward error correction that is used. |
| put_OuterFECRate | Sets the outer FEC rate. |
| put_SymbolRate | Sets the QPSK symbol rate. |