Question: For a Multi-Standard Radio (MSR) Base Station (BS), under which condition is the conducted emission test on the DC power input/output port NOT applicable for measurement on the DC cable itself?
Option 1: When the MSR BS is connected to an external antenna taller than 30 meters
Option 2: When the DC power cable of the radio equipment is intended to be less than 3 m in length and directly connected to a dedicated AC to DC power supply
Option 3: When the MSR BS operates solely on GSM/EDGE standards without NR or E-UTRA capabilities
Option 4: When the conducted emission test is performed during a thunderstorm to simulate extreme weather conditions
Explanation: According to specifications for Multi-Standard Radio (MSR) Base Station (BS) Electromagnetic Compatibility (EMC), if the DC power cable is shorter than 3 meters and intended only for direct connection to a dedicated AC to DC power supply, then conducted emissions measurement focuses on the AC power input of that power supply, bypassing the need for a direct test on the short DC cable itself, ensuring efficient testing tailored to the setup's potential for electromagnetic interference.