Question: For a Base Station (BS) undergoing conformance testing as per 3GPP specifications, what determines the necessity of performing the spectrum emission mask conformance test?
Option 1: The BS's transmission power capability in TDD mode.
Option 2: The manufacturer's declaration of the BS's intended operational region in relation to mandatory spectrum emission mask conformance.
Option 3: The type of antenna used in the Base Station setup.
Option 4: The BS's support for specific UE (User Equipment) categories.
Explanation: This is because the decision to perform the spectrum emission mask test hinges on whether the Base Station is intended for use in areas where adhering to a specific spectrum emission mask is compulsory, as indicated by the manufacturer's declaration. This directly impacts the regulatory compliance of the BS in its intended market or region, highlighting the importance of geographical operational context in conformance testing.