Question: In a multi-band capable Base Station (BS) conformance testing scenario, as per 3GPP specifications, what is required for the antenna connector of the band NOT being tested when using separate antenna connectors?
Option 1: Leave the unused antenna connector open-circuited.
Option 2: Connect it to a UE simulator for monitoring.
Option 3: Activate a low-power carrier in the unused band.
Option 4: Terminate the unused antenna connector.
Explanation: In multi-band capable Base Stations with separate antenna connectors, to prevent interference and ensure accurate test results for the band under test, the 3GPP specifications mandate that the antenna connector not being tested should be properly terminated. This practice ensures signal integrity and prevents potential reflections or emissions from the unused port.