Question: In a Multi-Standard Radio (MSR) Base Station (BS) conformance testing scenario, where a test's initial conditions are not explicitly defined in the present specification for a specific RF requirement, what should be used as an alternative?
Option 1: Default settings from the equipment manufacturer
Option 2: Initial conditions defined within the referred single-RAT specifications for the RF requirement
Option 3: Standardized default values from a different 3GPP specification
Option 4: Custom setup determined by the testing laboratory
Explanation: For tests of certain RF requirements where the present specification refers to the test method of single-RAT specifications, using initial conditions defined within those referred specifications ensures consistency and accuracy in testing across different radio access technologies (RATs).